test_performance[1] Philippines electronics engineering code.pptx

this is a knowledge about test performance of philippines electronics code

1. TEST PERFORMANCE ELECTRONICS CODE SECTION X

2. 10.1.1 Values of voltage and current are root-mean-square values, unless otherwise stated. 10.1.2 An appliance having both alternating-current and direct-current ratings is tested with appliance connected to an alternating-current supply and again to direct-current supply, unless it can be established that one test will result in the maximum operating conditions.

3. 10.1.3 V olt m eters – Unl e ss other w ise indic a te d , v o l t a g e m easu r e m en t s s h a l l be m ade w i th a v o l t m eter having a r e sist a nce of 2000 o h m s per v olt m ini m u m f or po t e n t i a l o f 1000 v olts o r less and 20,000 oh m s per v o l t f or m in i m um potentia l s of m o r e than 1000 v olts.

4. 10.1.5 Chee s e c loth I ndica t ors – Chee s e c lo t h u sed f o r t est s hall be u n tr e a t ed cot t on cl o th 9.2 m eters w i de, running 29 - 31 m eters per k i l o g ra m . 10.1.6 T e s t s invol v ing che e sec l oth are m ade i n a room free of dr a f t s 10.1.4 A l ea d , conn e ct o r , o r co m ponent t h at i s a c ce s sible d u r i ng nor m al opera t i o n or use r - ser v icing i s to be conn e c t ed f o r n o r m al oper a tion a n d i s to b e a rra n g ed i n any posit i on li k ely after u s e r - s e r v ic i n g .

5. 10.1.7 Sup p ly Circ u it V o lta g e and F r eque n cy – A l l operat i on a l t e s t s shall b e conducted with t he applian c e c o nne c ted to a s u pp l y circu i t o f r at e d f req u e ncy and t he v o l ta g e i n di c a t ed in the Tab le

6. 10.1.8 Power I nput T e s t – T he power inp u t s h a l l not e xceed the m a r k ed inp u t r a ting by more t han f i v e percent when t h e applia n ce i s operated w i th co n t r o ls a d j u s t ed within the r an g e of no r m al ope r ati o n of the applian c e so as t o prod u ce m axi m u m power i n p u t un l e ss t h e power cons u m pt i on i s not a f f ec t ed o t h e r w i s e. 10.1.9 An applia n ce ha vi ng it s power i n p ut a ff e c t ed by s i g nal i nput i s op e rated wi t h 1 00 Hz s i ne wa v e i np u t, w i t h a ll volu m e and t o n e co n t r o l s a d j usted to g i v e m axi m u m ou t put. A m atch e d no n -induct i v e l oad i m pedance is con n e c ted ac r oss t he o ut put o f t he applia n ce, and spea k ers, i f p r o v i d ed, a re dis c o nne c te d . T he i np u t si g nal v o lt a g e i s a d j u s ted s o th a t the a pplia n ce w i ll p r odu c e an au d io o u tp u t power eq u al to o n e t e n t h t h e m axi m u m a v ailable undi s to r t ed s ine w a v e ou t p u t p ow e r , but not l e s s t h an ½ w a t t p er chan n el.

7. 10.1.10 a phono g raph not ha v ing a sepa r ate audi o - input t e r m i na l s i s opera t ed w i t h the 1000 Hz s i g nal applied to t he first au d io s t a g e of t he ap p l i an c e or t o t he phonograph p ick up l eads ( w i t h t h e c a rtrid g e dis c o nne c te d ). 10.1.11 A r a d io or t ele v i s i on re c e i v er, or tun e r/a m pl i fier will be op e r a ted w i th t he 1000 Hz s i g nal applied to the first au d io s t a g e of t he ap p l i a nce. 10.1.12 T he m axi m u m a v a i la b le undi s torted s in e w a v e power is co n s i d e r e d a s t he m axi m u m ob t a ina b l e w i t h no e v i d e n ce of c l ip p ing or f l a t t ening of t he output s i n e wa v e as d e t er m i ned by an os c i l l os c o pe.

8. 10.1.13 X - RA D IA T ION T E ST – T HE X - R A D I A T I ON O F AN APPL I AN CE W HEN ME A SURED A S DE S CR I B ED I N R U L E 10.1.14 S H ALL N O T E XCE ED A D O SE R A T E , AVERAGED OVER AN A REA OF 10 S Q U A RE CE N T I METE R S FR O M T H E O U T ER SP A CE OF T HE OVER AL L E N CL O SURE O F T HE A PP L I A NCE.

9. 10.1.14 X - radia t ion m eas u re m en t s are t o be m ade wi t h s u itab l e i nstru m ents, under the f o llo w ing condit i on s : (A) T he applia nce i s co m plete, e x c e p t t h at m echa n i c a l parts th a t n e ed t o be r e m o v ed du ri ng use r -se r vi c ing m ay be o m it t ed i f t h ey a r e ( 1 ) not ne c es s a r y f or t he functi o ning of the applia n ce, ( 2 ) not expo s e d to v i ew d u r ing no r m al operation, and (3) not h eld c ap t i v e l i k e a ch a in, lo o se r i v et, etc. ; (B) T h e v olta g e of t he su p p l y circuit is 130 v olts i f t he ra t ing of t he ap p liance is w i thin t h e r an g e 105 - 130 volts, a nd 2 6 0 if t h e r a t i ng of the ap p liance is w i t h i n t h e r an g e 21 - 260 vo l ts ;

10. C) Af t er m eas u re m ents h a v e been m ade wi t h the s u p p l y v o l t a g e spe c ified in it e m ( b ) , t he supply v o l ta g e is a d j u sted t o any other v ol t a g e w i thin t h e m en t io n ed ran g es t h at re s u l ts in g reater X - rad i a t io n ; (D) a ll u s er adjust m ents ( s ee ite m s (G) and ( H) Ru l e 9.2.2 a r e posi t io n ed t o c a use m axi m u m X -radiation during applian c e ope r at i on w i th sound v o l u m e at any l e v el i nc l uding no sound, and us a b l e picture t h at ( 1) i s in s y nc h r on i z a t ion (2) p re s en t s v ie w ab l e althou g h p e rha p s po o r quali t y i n t e l l i g ence, and ( 3 ) f ills the v ie w i ng ar e a.

11. (E) I n addition to t h e a d j u s t m en t s d es c r i b ed i n i t em ( D), a ll co n t r o l s, r e g a r dl e s s of l o c a t ion, a r e a d j u s ted f or m axi m um X - rad i a ti o n during applia nc e opera t ion w ith sound v o l u m e at any l e v el, includ i ng no sound, and u s ab l e p i c t u re . (F) Unl e ss t h ey ha v e been i n v esti g ated and found to be r e l i a b l e, a r e c t i fier, t u b e, p r o t ec t i v e de v ice ( f use, circ u i t b rea k e r s, etc.;) e le c tro l y tic c ap a c i tor, t ransist o r, or o ther solid s t a te de v ice i s disa b led s i n g ly (shor t - c i rc u ited f o r ele c t r ol y t i c ca p a c it o r, op e ned f o r pr o t e ct e d de v ice and shor t - circ u i ted o r open e d for ot h e r s) u n l e ss d isabling the co m ponents do e s not per m it o p e r a t ion w i th a usa b le p i c tu r e.

12. (G) For a m ultipl e - functi o n applia n ce, m easure m en t s are m ade with t h e ap p lia n ce i n any m ode of no r m al operation, s uch as o ne w it h a v ideo tape p la y b a ck un i t oper a ting at any one of its s peed th a t w i ll p r odu c e a u s a b le p i c tu r e. (H) When m easuring X - radiation, p i c ture i nfor m at i o n i s inje c ted into the ap pl ian c e t h r ou g h t he an t e n na t er m i n a ls by m eans of a s u i t a ble s i g nal g ener a to r . T h e p ic t ure d i splay is to be an “ I nd i an Hea d ” or eq u i v ale n t te s t p a ttern.

13. 10.1.15 X - R adiation Und e r Servi c ing Condit i ons T e s t – U n le s s the r e i s a suita bl e m ar k ing to wa r n se r v ice p er s onn e l of t he p ote n tial X - rad i ation h a z ar d , t he ap p l i ance shall co m ply w i th t he Rule 1 0.1.13 ( X - radia t ion T e s t ) unde r a l l conditions of serviceman's s e r v i c i n g . See Rule 0. . ( X - radi a tion Und e r Servicing Conditions Mar k in g ). Serviceman's servicing include the r e m o v a l o f shi e lds, windows, cages , co v ers with o r w i t ho u t t h e chassis re m o v ed from i t s e n clos u r e

14. 10.1.15 A Te m pe r a t u re T e st – An a p p l ian c e, wh e n t e s t ed under t he condi t io n s d esc r ib e d below shall not a t t ain a te m pera t u re at any pa r t suffici e n t ly h i g h t o const i tute a f ire ha z a r d, or to a ffect i n ju r iously any m aterials e m plo y ed, n o r t o show te m pe r a tu r e at s p ec i fic po i n ts g reat e r than tho s e i nd i c a ted in Tab le V I . 10.1.16 The ap p liance is o per a ted u n t i l c on s ta n t te m perature a r e reac h ed ( 1) a t t he pow e r i np u t as des c r i b ed i n R u le 10.1 . 8 ( P ower I nput T e s t ), and ( 2) w ith a ll u nused r e ce p t a c les at their m a x i m um r a ti n g , and ( 3 ) enclosure o r c l os e d des c ribed in Ru l es 1 .1. 1 8, 10.1.19, 10.1.2 , 10.1. 21 .

15. 10.1.17 T e m pe r a t u res are m easu r ed by t her m ocouple of No. 2 8 - 32 AWG wi r e. A t e m pe r a t u re i s considered to be c o nstant when t h ree s uc c es s i v e readings ta k en at 15 m inutes i n t e r v als i ndica t e n o chan g e. 10.1.18 The applia n ce i s tested with t he m axi m u m pr o j ec ti o n on t he b a ck i n con t a ct w i th a fl a t v ertical w a l l o f wood or c o m parab l e hea t - insulating m a t er i a l, e xce p t t h a t t he spacing b e t w e e n the wa ll and the m a i n s u rf a ce o f t h e back of t he a pp l ia n ce s h ou l d n o t be less t han o n e inch.

16. 10.1.19 Ru b ber - like and f e lt m aterials a r e re m o v ed fr om suppo r ting feet to t h e ex t e n t that they are l i k ely t o be wo r n off i n n or m al s e r v ice. H o ri z o n tal v e n tilating sc r e ens s u b j e ct to t he accu m u l a t ion o f dust and ha v ing hol e s less th a n 1.2 mm in d i a m e t er a re t o b e co v ered w i t h lo o se c o t to n . 10.1.20 An a m plifier, t u n er or a m plifie r - tuner, w i th o ut co v er, i n t en d ed f or p rotect e d i nst a ll a t ion in ho m e syste m s is t o be pro v ided a buil d - up wood co v er sti m u l ating i nsta l l a ti o n i n a ca b in e t. T he c o v er is to be constr u c t ed of wood no r m ally 19mm t h i ck and is c on s i s ts o f a t op, s i d es and f ront a r ran g ed t o expo s e d user co n t r o ls. T h e co v er i s t o provi d e a c l ea ra nce of 5 cm from each s i de of t h e ch a s sis and i s t o cle a r t h e t op of t h e tallest co m ponent part m ounted a b o v e t he c h assis by 5c m . in de t er m ining t he cha s sis d i m ensi ons, e x tend e d f lan g es and f e et a re d i s re g ar d ed.

17. 10.1.21 A turnt a ble r e co r d changer, o r t ape dec k , w i t h out enc l os u re i n t ended f o r protec t ed i n s t a ll a t i on in ho m e syste m s i s t o be m ounted i n a b u il t - up en c losu r e s i m ulating i n s t a l l at i on i n a ca b in e t. T h e encl o sure i s co n stru c ted on wood no m ina l ly 19mm t h i ck and i s t o co n s i s t o f f o u r s i d e s and a botto m . T h e encl o sure i s to p r o v i d e a c l ear a nce o f 25 m m from the bo t tom of t he lowe s t co m ponent. 10.1.22 T h e te m perat u re o n a winding i s m eas u red b y app l y ing a t h e r m ocoup l e t o the h o tte s t p a rt o f the surfa c e of t h e c o il w i n d in g . I f t he winding i s en c l o s e d, a hole is t o be m ade in t he ca s e; and i f t he unit is potte d , a he a ted w i re m ay be us e d t o p r ovide a h o le i n t he compound be f ore t he t he r m ocoup l e i s p la c ed in co n t a ct w i t h the soil s u rface.

18. 10.1.24 a p p l ian c e Shock Ha z ard Current – The a v a i l a ble c u r r ent b etween exp o sed or a c ces s i b le p a rts and b e tween su c h pa r t s and g round shall not b e m ore t hat the s pe c i f ied in R u le 9 . 2.1 10.1.25 I nte r connec t ion S hock Ha z ard – T he a v ailable s teady - s t ate curre n t betwe e n e x posed o r acc e ssible p a rts, and b e tw e en such parts and g round, sh a ll not be m ore t han 2 - 1 / 2 m il li a m pher e s if t he applian c e, a n d i f t h e i nt e rc o nnec t ion can cau s e an in c r e ase in t h e s tock ha z ard cu rr ent.

19. 10.1.26 E xt e rn a l A n te n na S hock Ha z ard – T he a v ai l ab l e s t eady - s t a t e curre n t bet w een grou n d a n d a ny one s e t o f e x t e r nal a n ten n a te r m i n a ls o f an applia n ce s ha l l not be m o r e than o n e m i l li a m phe r e. 10.1.28 Cu r re n t Meas u re m ent as m ade wi t h t h e a t t a c h m ent p l ug cap on t he sup pl y co r d inserted i n the supp l y c i rc u it re c ep t ac l e in one position a n d with t he s upply ci r cu i t co n diti o n to t he re c ep t a c le re v ers e d. I f the a pp l ia n ce h as a dire c t - current r a t i ng m easure m ents a r e m ade w ith t he ap p l i a n c e con n ec t io n s i n t u rn t o each s i d e of a t h r e e - w i r e, di re c t c u r r e nt sup p ly cir c u i t.

20. 10.1.29 Cu r re n t Meas u re m ent a re m ade wi t h all parts connected t o g a t h e r a r e l ik ely t o be contac t ed s i m u lt a n eou s ly by a person during no r m al op e r a t i on o r use r - ser v ic i n g . U n r e l i ab l e i ns u l a t i o n such as t hat usually used b e twe e n t he v o i ce coil and t he fra m e of a spea k er, b e t w e en l i v e p a r t s and t h e m etal f ra m e of a ph o to g raph pic k up c a rt r id g e and b e tween t h e two ch a n ne l s o f a s t e reop h o n ic p hotogr a ph i c p ic k up ca r t r id g e is shor t - circ u ited dur i ng t h e t e s t . 10.1.30 Cu r re n t m easu r e m en t s a re m ade ( 1) w i th any operati o n co n t r o l , or a d ju s ta b le co n t r o l t h at i s considered s u b j ect t o u s er ope r at i on, i n all p o ssib l e p osition of c o nt a ct, and ( 2) e i t her w i t h o r witho u t tubes, se p a r ab l e con n e c to rs , and s i m i l ar de v ices in p l a c e.

21. 10.1.31 T ube I nte r c h an g e – T he i n s e r t ion in any soc ke t of any t ube or i ts g la s s or m e t al equiva l ent o f l i k e de s i g na t i o n u s e d in t he rec e i v er s hall n o t r es u lt in a shock ha z ard.

22. 10.1.34 E x t e r nal A n ten n a G a seou s - D ischar g e T u b e T e st – i f a gase o us - discharge t u be, or an equ i v a l e nt d e v ice, i s i n t he circu i t b e t w e en a p a r t i n v o l v i ng sho c k ha z ard and a t er m inal pro v ided for t h e conn e c t i on o f a n e x t e rn a l a nten n a, a dire c t - curre n t p oten t ial of suf f ic i ent v alue t o c au s e b rea k down i n t h e g aseous - tube, or equ i v a l e nt de v ice, shall be a p pli e d across t he de v ice. T he po t enti a l shall t h en be dec r ea s ed t o a v alue of 1 . 5 V + 2 00 v olts, a t wh i c h time t he circ u i t shall not pa s s a curr e n t o f m o r e than 5 m i lli a m pe r e s . T h e constr u c t ion of a de v ice having a he r m e ti c seal shall be s u ch t h a t de v ice will a l so co m ply with this requ i re m ent if a leak oc c ur in t he s ea l .

23. 10.1.37 Aud i o - O u t put Shock Ha z ard T e s t – The a ud i o o u tput poten t i a l of an a m plifier ha v ing p r o v ision f o r c o nne c t i on of ext e rn a l s p ea k er s h a l l be 1 V o r less w h en te s ted a s d escrib e d b e low. 10.1.39 P r i m a r y I nsula t ion V o lta g e T e s t – a h i g h v o l ta g e p a rt that i s a c ce s s i b le wh i le e n er g i z ed, o r th a t i s li k ely t o be left i n con t a ct, w i t h acc e s s ible m etal, w i th p a r t s o f t h e po w er supply circu i t, w i th a wooden ca b in e t, o r w i t h a s i m il ar p a r t ha v ing a r el at i v ely l ow le v el of insulation, s h a l l not cau s e a b r ea k down of t h e pr i m a r y insul a tion o r de v elop a v o l ta g e of m o r e t han 1270 vo l ts peak ac r o s s p ri m a r y insul a tion, w hen c onn e ct e d to t h e c h as s i s o r e a r th.

24. 10.1.40 Co m ponent Shock Ha z ard Test – T o d e t e r m i ne if the c o nne c t o rs, c o m ponents and l ea d s of an applian c e co m p l y w i t h the sho c k ha z ard req u ire m ents of Ru l e 9.2.12 (P a rt D i sc o n nectio n ) t h e ap p lian ce i s ope r a ted u n der t he m aximum v o lt a g e cond i tions d e s cr i b ed i n Ru l es 10.1.78 a nd 10.1.79. c u rr e nt and v o l ta g e re a din g s a re ta k en du ri ng t h e i n i tia l fi v e m i nutes of the t e s t . 10.1.41 M a x i m um Low V o l ta g e – T h e m axi m u m voltage u s ed a s a b a sis f o r t h e c a lc u lation o f t h e diele c tric - w ithstand poten t ia l s s pe c i f ied i n Ru l es 1 .1.56 (D i rec t - Connected P ower Su p ply Di e l e ct ric With s t and Tes t ), sha l l be d et e r m ined i n acc o rd a nce w ith Ru l es 10 . 1.4 2 - 10.1.45.

25. 10.1.46 E l ec t r o l y t i c - Capac i tor T est – I f t he m ax i m u m v o l ta g e across an e l e c tr o l y t i c ca p ac i t o r i s m o r e than its m a r k ed ope r at i n g v olta g e r a t i n g , t he c apa c it o r shall n o t shor t - cir c u i t w hen s u b j e c t ed t o t he follow i ng t e st. 10.1.47 Applian c e Die l e c t r ic Withsta n d T est – The i n su l a tion and sp a c ing of t he appliance s h a l l be capa b le o f wi t h stand i ng wi th o ut b rea k down f o r a period o f one m inute of t he applic a ti o n of t he te s t po t e n t i a l s descri b ed in Ru l es 10.1.48 and 10 . 1.56 unl e ss an i n v es t i g at i o n shows that such brea k down will not res u lt in a f i r e or s hock ha z ard

26. 10.1.49 Pri m ar y Circuit Diele c t r ic W i t h s t a nd T e s t – A 900 v olt 60 Hz po t ential s ha l l b e a pp l ied betwe e n any l i v e m e t al part conduct i v ely co n ne c ted t o t he supply c ir c u i t and any dead m etal parts or u s e r te r m i n a ls s u ch as a n ten n a a nd ground l eads. 10.1.51 I solating Power Transfor m er D iele c t r ic Wi t hstand T e st – I f an i s o l a t ing t y pe of power t r ansf o r m er is e m p l o y ed, a 900 v o l t 60 Hz p o te n tial s h all be ap p lied b etwe e n any l i v e o r c u rren t - car r y ing pa r t of the sec o nd a ry circu i t.

27. 10.1.52 P r i m a r y I nsulation Dielec t r i c W ithstand T e st – Exce p t i n t he s e c ond a ry c i rcuit o f an i s o l a t i ng t y pe of power tra n sfor m er, a 90 - v olt 60 Hz po t enti a l shall be a p p l ied a c ro s s e ach ca p ac i t o r, w i nding sep a ration o r o t h e r i n sula ti on requi r ed f or t he e l i m i na ti on of s hock hazard, o r, wh i ch i f sho r t - circ u ited, would in v ol v e a f ire h a z ard ei t her dire c tly or in d irec t l y . 10.1.53 O u t put C i rcuit Di e le c t r ic Withstand Test – I f a sp e a k er is not suppl i ed a s an i n t e g r a l p a r t of the a pp l ia n ce, a d ire c t - current p o te n t i al o f four t i m es t he m ax i m u m , d ir ec t - curr e nt, op e n circ u i t v olta g e m easu r ed i n the o u t p u t t u be pl a t e c ir c u it s h a l l b e a p plied a cr o ss a bloc k ing c a pac i tor and b e t w een t h e p ri m ary and seco n dary windin g s of an isola t ing t y pe ou t p ut t r an s fo r m er wh o se ou t p u t c ircuit is l o c a te d f r om the c h as s is u sed for s p ea k er cou p ling exce p t t h at t he potenti a l s h a l l be not l e s s t h a n 1270 vo l ts.

28. 10.1.55 Power T ran s for m er Diel ect ric Withstand T e st – A power t r a ns f o r m er and t he as s oc i a t e d re c t i f i e rs soc k et shall be c a pab l e o f opera t ing without b r ea k down w hen po t e n t ial i s ap p l i e d t o t he pri m a r y of t h e t ra n s f o r m er t o p rod u ce t h e di r ect - current te s t p o te n t i a ls in d ic a ted in R u le 10.1.56. 10.1.56 Po w er Tra n s f o rmer S e con d ary Di e le c t r ic With s tand T e s t – I f a p o w er transfor m er is e m p l o y ed, a dire c t - curre n t potential of t h ree ti m es t h e m axi m u m v ol t a g e d e ter m i ned i n a cc o rda n ce w i t h the R u les 10.1.42 and 1 . 1.43 b u t n o t l ess than 5 v ol t s, shall b e ap pl ied be t we e n li v e parts and acc e ssible m et a l p a rts. A c apa c it o r m ay be acce p ted under t he p r ovision i n Ru l e 10.1.46. ( E l e c tr o l y t i c Capac i t o r Te s t)

29. 10.1.69 P r i n ted wi r i ng sh o ck ha z ard Di e le c t r ic Wit h s t and T e s t – A printed w i r i ng as s e m b l y shall w it h s ta n d f or o n e m inu t e wi t ho u t brea k down the a p p l i ca t ion o f a dire c t pote n t i a l of 2 E +1000 v olts betwe e n pri n t ed w i ring parts and o the r p a r t s whe r e e le c tric a l brea k down would r e s ult in a sho c k ha z ard. 10.1.70 P rint e d Wir i ng Fi r e Ha z ard Di e le c t r ic W it h stand T e st - I f th e s o ur c es o f pow e r for a printed wir i ng a s s e m b l y a r e n o t l i m it ed t o 50 w a t ts a s d es cr ibed i n item A of R u l e 1 .3.1 the ass e m b l y shall w it h s ta n d f or one m inute wi t h out brea k down t he applic a t i on o f a d irect p o te n t i a l of 2E+10 v o l t s betwe e n parts o f diff e rent po t e n t i al on t he a sse m b l y w he r e e le c t r ic a l brea k down i n v ol v es a pa t h o v er the su r face of ins u l a t i ng m aterial.

30. 10.1.72 Acc e s s ible Part D i ele c t r ic W ith s tand T e st – Except wh e n a cond u c t i v e sh i e ld or c o a t ing i s p r o v ided b et we en a li v e p ar t and an a c ce s si b le m et a l p a rt o r an acc e s s ible m e t al p a rt th a t i s not r e co gniz ed as re l ia b le i nsula t ion if co n t a c t b e t w e en s u ch p a r ts w i l l res u lt i n shock hazard, the dire c t - current p o t e n ti a l indic a ted in T a b le V II sh a ll be ap p lied b e tween t h ese p arts.

31. 10.1.75 Pow e r T r an s fo r m er H i g h - Vo lt a g e S e condary – AC D i ele c t r ic Withsta n d T est – E xce p t when a suita b le s h i e ld i s p ro v id e d, an alte r na t ing po t e n t i al o f f o u r ti m es t he r a ted pri m ar y v o l ta g e at f our t i m es the r a t ed freq u ency shall b e appli c ab l e a c ross t he p ri m ary v o lt a g e at f o u r ti m es t he r a t ed freq u ency sh al l be a p plica b le a c ro s s t he pri m ary w i nd i ng o f a pow e r tra n s f o r m er suppl y ing a m ax i m u m ope n - circuit po t e n t i al of m ore t han 10 v ol t s peak b e t w een any tw o t er m inals o f a win d ing th a t h a s no con n ec t ion t o the ch a ssis. The t e st po t e ntial i s a p plied a c ro s s t he p ri m a r y wind i ng w it h one of t he w i n d ing l eads conn e c ted t o t he chas s is. I f t he second a ry winding has no conn e c t i o n t o t he c h as si s t h i s te s t shall be m ade w it h o n e of t h e s e cond a ry winding and then t h e o t h er in t u rn, conn e c ted t o t h e c h assis.

32. 10.1.76 Po w er Tra n s f o r m er H i g h V olta g e S e cond a r y - DC Diele c t r ic Withstand T e s t - Except w hen a suita b l e s h i e ld is p r o v id e d, a d i r ect curre n t p o te n t i a l of four ti m es t he p e ak poten t ial m eas u red b e twe e n the w i nd i ng and t he c ha s s i s shall be ap p lied b e tween t he pri m ary wi n d i ng of a p ow er t ransf o r m er and any o t h e r w i nd i ng o f t he transfor m er, e. g ., a da m per tube hea t er w i n d in g , oper a ting at a p o te n t i a l of m o r e t h an 1000 v ol t s p e a k , m easured under t he con di t i on d es c ribed i n Rul e s 10.1.78 a nd 10.1.79 wi t h res p ect t o t h e chassis if e lectrica l brea k down wou l d res u lt in s hock ha z ard.

33. 10.1.77 M a x i m um H i g h V olta g e VI – T he v alue of VI to b e u sed i n c a lc u lating t h e d i e le c t r i c - w it h s ta n d test p oten t ial speci f ied i n R u le 10.1.83 s h a l l be deter m ined in a c corda n ce with Rul e s 10.1.78 , 10.1.79 a nd 10.1.82. 10.1.78 All control are to be adjusted to give the maximum voltage possible with a usable pictures 10.1.80 Maxi m um Hi g h -Volta g e V2 – T he v al u e of V2 t o be us e d in c a l c ul a ting t he die l ec t ric w it h s ta n d te s t p o te n tial speci f ied in Ru l e 10. 1 .83 sha l l be deter m ined in a c cor d a nce w i th Rul e s 10.1.81 and 10.1 . 82.

34. 10.1.83 Hi g h V o lta g e S y s t e m Dielect r ic With s tand Te s t - A high v o lt a g e sou r ce o v er 1000 v o lt s p eak and a sso c i a ted c i rc u its, s u c h as d e f le c tion c o i ls, etc., ope r a t i ng i n t he B - plus c i r cu i t, sha l l be c a pa b le o f ope r a t i ng wi t ho u t b r e a k do w n f or a p e riod of o n e m i nu t e when t he h i g h - v o lt a g e sou r c e output i s 1.2 5 V + 1750 Volts o r 1. 2 V 2, w h i c he v er i s g r e a t er.

35. 10.2 F i re hazard L im i t 10.2.1 L i m i t ed Pow e r F i r e Ha z ard T e s t – T o b e free from fi re ha z ar d s, as d es c r i bed in R u le 9 . 2.1 . J, the s ources o f po w er f or a co m ponent p a rt or a sse m bly sh al l n ot b e c a pa b le o f d e li v e r ing a power of m ore than 15 w a tts i n to an e xt ern a l r es i s t o r co n ne c ted b e tween any two p o ints on t he asse m bly w it h a l l co m ponents ( i n clu d ing tu b e s) in p l ace, and a) I f t he source of pow e r is d i r e c t ly fr om t he secon d ary winding of a n isola t ing t y pe transf o r m er, o r m o t or tr ansf o r m er, t he conditions o f l oa d ing t o m axi m u m power and of short circui t ing t he seco n da r y wind i ng sh a ll not produce a f i re o r shock ha z ard. See i t em (d).

36. b) I f t h e s ource o f power e m p l o y s a r esi s tor to li m i t t h e pow e r t o 15 w a t t s o r l e s s, any con d itio n s o f loa d ing t o m axi m um po wer o r s ho r t c i rc u iting the poi n t s i n q ue s t i o n s ha l l n o t c ause t h e re s i s tor t o chan g e v alue to the e x te n t t hat the 15 w a t t li m i t t o be e xcee d ed. c) T h e s h ort or open c i r c ui t ing (sin g l y ) of any recti f ier, vacuum t ube, t r an s i s to r , or e l ec t r o l y t i c capa c i t or b etw e en t he 1 5 watt point and t h e p ower supply c i r cu i t s ha l l n o t c au s e t he 1 5 - watt l i m i t t o b e exce e d.

37. d ) Following t he te s ts de sc ribed i n ite m s ( a) a n d ( c ),. An i sola t ing t y pe of power t ra n sfor m er shall be ca p ab l e of w i th s ta n di n g w it hout b rea k down f o r a period o f one m inute, a 90 - v olts alt e rn a ting po t e n t i al ha v ing a freque n cy of 60 Hz between ( 1 ) a ny li v e m etal part con d uct i v ely connec t ed t o t h e supp l y c irc ui t and any de a d m etal p a rts, a n d ( 2 ) a ny li v e o r c u r r e n t - car r y ing p art of t he pri m ary or power supply c i rc u i t and a n y li v e or cur r ent - carr y ing part of the seco n dary c i rc u i t.

38. T h e t e r m m ax i m u m po w e r ‟ is defin e d a s t h e m axi m u powe r tha t t h e so u r c e o f po w e r i s capa b le o f d e li v e r ing i n t o a n ex t er n al v a r ia b le re s istor conn e c ted b e t w een the p oi n ts being in v es t i g ated. 0. . T h e term „ li m it e d power i s d e f i n ed as the o v er l o ad c o ndit i on th a t w i ll n o t c au s e a co m ponent or pr o te c tive d e v ice to o p en. T o cre at e t h i s condition, s u ffi c ie n t i m ped a nce i s introd u ced i n t o the circ u it so that the c o m p onent or pr o te c tive d e v ice wi l l not open until a p e r iod of s ix hours has e lap s e d . A fter s i x ho u rs, the i m pedance is redu c ed t o ca u se the co m ponent or pr o te c ti v e d e v ice t o o p en.

39. 10.2.11 A ha za rdous con d ition i s c o nside r ed to e x ist i f the te s t r es u l t s i n any of the followin g : a) T he sin g le la y er of c he es ecl o th g lows o r f l a m es b ) The tissue pap e r g lows o r f la m es c) T he one - a m pe r e ground f use opens d) Any opening i s de v e l oped in the o v er a ll en c l o su r e (cab i ne t )A c rack t h a t p e ne t r a tes t h e encl o sure i s co n s i d e r ed as a n ope n in g .

40. e) Fl a m e r es u lting from t he arcing contin u es f o r m ore t han 15 seconds a ft e r arcing is d i s c o n t inu e d. f) F l a m e res u lting from the te s t c ontinu e s f or m o r e t h an 15 s e c o nds unless t he m ateri a l o r co m ponent i s w i th i n a n en c l o su r e co m plying wi t h Rule 9.2.15.P ( Hi g h V olta g e C o m pone n t Enclo s ur e ). T h is d oes n ot apply to t he a r c ing co v ered by (e) above.

41. 10.2.12 When the circ u it is i nte r ru p t ed by t h e opening of a co m ponent o r pro t e c t i v e de v ice, suf f i c ient i m pedance i s to be i ntrod u ced (in series w i th t h e pr o be f or an arcing t e s t, o r incre a sing t he v al u e of t h e ex t e rn a l l oad r esist o r for ot her abn o r m al oper a tion te s t) i n to t he c i rc ui t so that t h e co m ponent or de v i c e w il l n ot o p en and t he t e s t i s t o b e c o n tin u ed f o r se v en hou r s ex c ept for an arcing t e s t wh i c h is t o b e continued f o r a total o f 15 m inu t es a t e a ch p o int. Thr e e co m plete, se p ar a te t e st a r e t o b e m ade. 10.2.14 A m anu a l - re s et t y pe o v erload pr o te c tive d e v ice i s t o perf o rm acce p ta b ly f or 50 c y c l es o f ope r a t i on un d er the m ost u nfa v o r a b l e o f the o v e r load condit i on.

42. 10.2.15 Hi g h - Volta g e A r c i ng T e s t – With t he a pplia n ce a d j u s ted as d es c r i b ed i n Rules 10.1.78 a n d 10.1.79, a p a rt op e r a t i ng at m ore t han 2500 v olts peak and a no t h er p a rt o f d i fferent p o t e n t i a l, sh al l w it h s ta n d t h e follo w ing ar c ing te s t w itho u t p r o du c ing a fire o r sh o ck ha z ard.

43. 10.2.19 All combustible parts operating at more than 2500 volts peak, and all combustible parts that form all or part of an enclosure of a part operating at more than 2500 volts peak, are to be conditioned for hour, in a full draft circulating-air temperature zero degree Celsius higher than the normal operating temperature, but not less than zero degree Celsius.

44. 10.2.20 T he a rc, using t he en e r g y a v a i lab l e from the pa r ts a d jac e nt is e s ta b lish e d be t w een t he hi g h - v oltage part and any a d j a c ent p a rt of dif f er e nt p o te n tial where b rea k down i s li k ely t o occu r . T h e a r c is us e d t o atte m pt to i g n i te mat e ri a ls located b etw e en t h e parts of d i f f e re n t poten t i a l. The arc i s estab l is h e d be m eans of a conducti v e p r obe. T he c o ndu c ti v e pr o be m a y be used to b r eak t h r ough i nsula t ion ( e xce p t reco g nized w i r e i n s u l a t ion) or c re a te arc t rac k ing a c ross t h e s u r face of i ns u lat i ng m a t e r ials (e. g ., t u be so c k ets, ter m i nal board, et c.). t h e a r c ing i s con t inu e d for 15 m i nu t es at each loca t ion. During t he 15 m inutes period, t he arcing m a y be s t opped a t any ti m e by d i s c on n ec t ing t he p o wer t o the a p plian c e a n d the t i m e of fl a m i ng m easu r ed. I f t he fla m e sel f - ex t in g ui sh es i n less t h a n 15 s eco n ds, t h e a rc i ng i s t o be r e -es t a b l ish e d and co n t i n u ed f or a to t al arcing t i m e of 15 m inu t es.

45. 10.2.20A Pa r t Disconn e c t i o n and Co m ponent Handling A r c i ng T e s t – With the a p p l i ance o p er a t i ng as des c r i b ed in Ru l e 10.1.78 and 10.1 . 79, a conduct o r, a co m ponent o r lead that may beco m e d i scon n e c t e d or d is p la c ed during s h ip p i n g or m o ving of t he ap p l i a n ce o r t h at m ay be dis c o n n e cted or d i s pl a ced during no r m a l opera t ion o r user - servicing shall w i t h stand t h e f ollow i ng arcing t est w ithout produ c ing a f i re or shock ha z ard.

46. 10.2.20B T h e co m ponent lead o r c onn e ct o r is b rou g ht i n to c ontact w i th a ny pa r t of d i f ferent p o te n t i a l w it h wh i ch co n t a c t i s li k e l y to be es t a bl ish e d. I f t he con t a c t r es u lt i n arcin g , t he a r c is m aint a ined f or 1 5 m inut es. A m ateri a l that i s not recognized i s reli a ble insulation m ay be consid e r e d cond u c t i v e. A m aterial loc a ted b e tween t he lead c onne c tor and t he p a rt of dif f e r ent p o t e n tial i n the p at h of pos s ib l e e l ect ri c al b r ea k down i s subje c ted to the a rcing i n o rd e r t o d e t e r m ine i f any i g nition can be p r o d uced. T h e re i s to b e no opening of t he g round fuse or fla m ing or g low i ng of any m aterial f or m o r e t h an 15 s e co n ds f ollo w ing the d i s c on t inu a nce o f the ar cin g . A condi t ion e st a b l is h ed on l y as a r e s u lt o f u s er ser v icing of the ap pl ia nc e and which res u lts in the di s ab l ing of a l l the intend e d f u nctions o f the a pplia n ce i s per m i s s ib l e.

47. 10.2.20C Nonco m bustible Part F l a m e T est – A pa r t i s considered n o n - co m b u s t ib l e if i t does n o t continue t o f la m e for m o r e t han 10 seconds a fte r a 15 s econd a p p l ic a tion of a t e s t f la m e, and i f i t d o es n o t cause t he h e i g ht of t he test fla m e to i n c re a se m o r e t h a n one i nch during t he applica t ion of t h e fla m e. T he te s t fla m e shall b e ap p lied fi v e ti m es, t he pe r iod b e t w een the a p p l ic a t i o ns being 15 s e c o nds, exc e pt that the t e s t i s d i s con t in u ed i f t he p a rt co n t i n u es t o fla m e f or m ore t han 10 seconds a fte r a ny applic a ti o n. T he te s t f la m e sh a l l be o b t a in e d f r om 9.5mm di a m eter. T e r r i l l b u rn e r and a d j u s t e d to g i v e a fl am 12cm h i g h w it h 3 . 75 cm hi g h blue in n er c o ne.

48. 10.2.20D C a pa c it o r F l a m e T e st – A capac i tor is c on si dered e n c l o sed i n no n - co m bustible m a t e r i a l i f it does n ot co n t i n u e to f la m e for m ore t han 15 sec o nds aft e r the first a n d s e cond a p plica t io n s of a t e s t fla m e. Nor m ore t han 60 s e c onds after t h e t hird t e st f la m e, a nd the p e r iod b e t w een ap pl i c a t i o ns, i s 15 seconds. T he t e s t f la m e i s 2 c m . h i g h f l a m es from a 9.5 m m . d i a m eter. Terrill burner, w i th t h e a i r ports o f t he bu r n e r c losed. T he tip of t h e test f l a m e i s to b e ap pl ied to t he body of the ca p ac i t o r a r e to be te s t ed.

49. 10.2.21 F l a m m ab il i ty C l assific at ion or Mate r i a ls T e st - A m a t er i a l or a s s e m bly t hat i s t o be cla s sif i ed as s e l f - ext i n g u i s h ing w hen t e s t e d as in d ic a t e d in R u l e 10.2.22 thr o u g h 10.2.22.C s h a l l: a) N o t ha v e a ny s a m p l es w h i ch bu r n w i th fl a m i ng c o m bustion for m o r e t h a n 30 s e con d s a fter ea c h applic a t i on of t h e t e st f l a m e. b) Not ha v e a t ot a l fla m i ng co m bustion ti m e ex c ee d i n g 250 s e conds; f o r t h e 10 f la m e app l ic a tions for e ach s e t of 5 sa m ples. c) Not ha v e any sa m p l es t h at a re e n t ir e ly con s u m ed before t h e t e st of the s a m p l e i s co m p l e t e d.

50. 10.2.22 F o r t e s t i ng a m at e r ia l , t h e s a m ples are to be flat stock approx i m at e ly 12.5 c m . l ong by 12.5 m m. wide and of t he s m a l l e s t t hic k ness, u s ed; o r, f or an a sse m b l y t he s a m p l es m ay con si st of the ass e m b l y Hi g h - v o lt a g e tra n sfor m e r s, d e flec t ion y o k e s , printed wir i ng b o ar d s, te r m inal strin g , e t c. m ay be te s ted as fi n ished p a r t s or test sa m ples m ay be cut f r om fin i shed parts. I n t he case of s m a l l pa r ts, wh i c h m a y be con s u m ed b e fo r e t he test i s co m p l et e d, l a r g er sa m ples o f the s a m e m aterial m ay be t e s t e d p r o v ided t hey re p re s ent t h e s a m e or less e r t hic k ne s s t h an t h e p a rt in ques t ion. N o ne of t he lar g er s a m pl e s is to be enti r ely consu m ed.

51. 10.3 Abnormal O pe r a t i on 10.3.1 P owe r Sup p l y Te s t – T h e pow e r suppl y o f an applian c e shal l b e inve s tig a te d t o det e r m ine a ll of t h e f o l l o w i n g : A . T he points n ea r e s t t he supply c i r c u i t no capa b le o f del i ve r ing a power of 50 wat t s o r m o r e f or one m inute i n to an extern a l r esi s tor co n ne c ted sin g ly be t ween e a ch o f t he s e p o i n t s and any r e tu r n t o t h e power s u pp l y . B. T h at a fi r e or shock ha z ard i s n ot prod u ced u nd e r the condition of s e p ar a t e ly shor t - circui t ing or loa d ing to m axi m u m power or li m i t ed po w er, the p o i n t s de t e r m i ned in ( A ).

52. C. T h a t a f ire o r s h ock ha z ard i s n o t produ c ed un d er t he conditio n s of shor t - circ u iting s i ngly of any re c t i fier, v acuum t ube, t r a n s i s t o r , o r e l ec t r o l y tic c a pa c it o r i n t h e c i rc u it b e tween the po i n ts deter m ined in i tem (B) and t h e sup p ly c irc ui t. D . T h e while in a he a ted c ondit i on from t he tests, de s cri b ed i n it e m s (B) and (C) t he power supply is c apa b le of w i t hstan d ing w it ho u t b rea k down t he d i e l ec t r i c w i th s t and t e st de s c ri bed in Ru les 10.1.4 9 -10.1.51

53. 10.3.5 Vacuum Tube Fil a m en t Shor t- Circui t T e s t T h e re shall be no fl a m e i f an y m ate ri al under any li k ely conditions of i n tern a l sh o r t - circuit of a v acuum t ube un l e ss t h e m aterial is within an en c lo s u r e co m plying with Rule 9.2 . 1 5.P (Hi g h Volta g e Co m ponent E n c l o sure). 10.3.6 A. I f t he shor t - circ u i t tes t s r eq u i r ed by Rule 10.3.1, i t em ( B) above, con t inue for a f ull seven hours, i t is n o t ne c es s ary t h at t he m axi m u m po w er or li m ited pow e r t e s t be conducted. Li k ewi s e, if the m axi m um power co n t i n ues f or a f a ll s e v en hours, it i s n ot ne c es s ary t h at t h e li m i ted pow e r t e s t be con d uc t ed.

54. C. I n conducting t he sho r t -circu i t te s ts r equired by Rule 10.3.1.C. t h e follo w ing connect i o n s are to be si m ulate d : B. Un l e ss i t is n ec e ss a ry to repl a ce co m ponent a f t e r t he t e s ts i n item (B) a nd (C) of Ru l e 10.3.1 t he die l ec t ric w i t h s t and t e s t d es c ribed i n i tem ( D ) n e ed t o cond u c t e d o n ly a f t er t h e l a s t l e s t on t he power supply is c o m p l e ted.

55. 10.3.9 Pict u re Tubes An o de Lead T e s t Unless m a r k ed as i n Rule0. . (H i g h V o l t a g e D e t er m in a t i o n Mar k in g ), e le c t r ic a l conta c t b etw e en the p icture tube ano d e l ead and t he ch a s s is ea r th, or o t h e r p a r t s o f t he ap p lian ce with w h ich co n ta c t, e i t h e r i nten t io n al or un i n te n t i o nal by t he ano d e lead i s l i k ely during s e r v i cin g , sh a ll n ot ( 1 ) c a use an el e c tri c al b rea k down t h a t w i ll pr o duce a p e r m an e nt s hock ha z ard, nor ( 2) su b je c t i nsulation and spacing's, t he f ailure o f wh i c h wou l d re s u lt in a p e r m an e nt s hock ha z ard, t o a v o l ta g e of m o r e t han 1 2 70 v ol t s p e ak du r ing a fi v e m inu t e period, i f the a r ran g e m ent of parts is s u ch th a t t h e v o lt a g e i s l i k ely to cause an e l e c t rical brea k down.

56. 10.3.15 H i g h V olta g e Sh o r t Circ u i t T est A n ap p lianc e sh al l n o t p r o d uc ea fi re o r sho c k h a z a rd w hen a h i g h - v o l tage p a rt in t he B - plus c i r cu i t, opera t i n g at m ore than 2500 v olts peak m easured w i th t h e applian c e o p er a t i ng under the con d ition des c ribed i n Rules 10.1.78 and 10 . 1.79 i s sho r t - circuited to p a r ts of dif f er e nt p oten t ia l s, if th i s r e p re s e n ts a s i n g l e fa u l t .

57. 10.3.13 C ab l e Arcin g T e st A sin g le o r m u lti p l e cond u c t o r ca b l e a s desc ri bed i n R u l e . . . (Re m ote Cab l e), s ha l l be conside r ed to i n v o l v e a f ire ha z a r d if t h e a r c c a used by sho r t - circuiting o r g round i ng the cond u ct o rs w i ll i g n i t e s u r g i c a l c o t t o n. 10.3.14 C o ndu c ti v e Coating Voltage an d Cu r re n t T e st w ith a c o nne c t i on b et w een the live part and any part of t he c o ndu c t i v e coating m ention e d i n R u le 10.3.16, inc l ud i ng t he p a r t where a rc i ng occurre d , the v o l ta g e m easu r ed by an e l ec t ro s t a tic v o lt m e t e r b e t w een t he li v e p a r t and c ha s s i s shall n o t e xc e ed 1 2 7 v olts pea k , and t he curre n t through a 5 ohm l oad c o nnected b e twe e n t he li v e pa r t and c h as s is s ha l l n o t exce e d 5 milli-amperes .

58. 10.4 Stra i n R el ief and Co n nect o rs 10.4 .1 Powe r S uppl y Cor d St r ain Relief Test T h e attach m en t o f the powe r supp l y co rd t o the applian c e s ha l l be capa b le of with s ta n ding a f o rce of 16 k g . app li e d t o t he cord as f ollows: T he f o rce is applied by a 16 kg . wei g ht, or a steady pull o f 16 kg . W it h t he c ha s sis i n t he cabinet i n t he n o r m al m anne r , t he for c e i s appli e d from any an g le pos si b le. T h ree sa m ples are t e s t e d. T he m in i m um a v era g e t i m e of h o lding i s 15 s e c o nds. T h e sa m ple m ay ho l d f o r l e s s than 15 s e c onds, but n o t l e s s t han fi v e secon d s. T he resu l ts o f t he t e s t a r e n o t ac c ep t ab l e ( 1 ) i f t he ins u l a t i on o r co v e r i n g on t he flex i ble co r d is cut or t o rn, ( 2 ) i f t h e b us hing slid e s t h r o u g h t he h o le i n the c h as s is or encl o s ure, ( 3 ) if ce m en t ed on bushin g s slide on t he c o rd, or ( 4) i n an i n te r l ock c o nn e ctor i s s ep a ra t ed from t h e a pp l i anc e , o r is d a m a g ed sot th a t i t does n o t perf o rm i t s i n ten d ed fun c t i on.

59. 10.4.2 T u be P l a te Lead Strain R e l ie f Str e ss T h e securing means f o r a h o rizo n tal o u tp u t t ube plate or h i g h - v o l ta g e rect i fie r pl ate lead l oc a ted e n t i r e ly w i t h in t he h i g h - v ol t a g e en cl osu r e s h a l l w i th s tand a force of 2.3 kg . applied to the l e ad f or o n e m i nu t e o n a ny directi o n p e r m it ted by t he constru c tion w it h t h e parts a n d secu r ing m eans a t room te m perat u re. .

60. 10.4. 3 C o nne c to r , Cycling Test- A separable co n nect o r shal l f or m acc e pt a b l y , without damage, w hen su b j e ct ed t o t h e sp e c i f ied nu m ber of c y cles of m a k e and b r eak at s i x - second i n t er v als. T he te s t is conducted w ith t he ap p l i a n ce i n n o r m al op e r a ti o n. A c onne c tor sha l l be op e r a ted for 10 c y cles i f it i s i n a ci r cuit on the lo a d s ide o f a re c tifi e r a n d f o r 50 c y cles if it is pri m ar y - input c i r cuit.

61. 10.5 Stren g th of E n cl o sur e s 10.5.1 M ech a ni c al L oa d ing T e st A . Enclosure Loa d ing t e st t he overall enclosure o f ( 1) a t a b le m ode l ap p l i a nc e wei g h i n g m o r e than 4.5 k g . but n o t m o r e t h an 34 k g . or ( 2 ) any ap p li an ce p ro v ided w i th h an d l es s ha l l withsta n d for one m inute the l oading descri b ed below w i t h out prod u ci n g a sho c k ha z ard and w i t h out any da m a g e that m i g ht result in a f ire ha z ar d .

62. a) T he co m plete ap p liance i s s et on a 5 c m . dia m eter ste e l b a ll r esting of a h o ri z ontal s urfa ce ha v ing d i m ension not l e s s than t h o se o f t h e ba s e ap p liance. A w e i g ht of 0.25W + 1.8 kg . is p l aced o n top of the app l i a nce d irec t l y o v er t he s t e el b a l l. W b e i ng t he wei g ht of the appli a nce. Rubb e r - l i k e and felt m ate r ials a re r e m o v ed from support i ng fe e t to t h e e x te n t t h a t they a re l i k e l y t o be worn off i n no r m al ser v ice. Su p porting fe e t wh i ch a re n o t p e r m anent secu r ed to t h e e n cl o sure are to be re m o v ed.

63. B. Bac k cove r I m pac t an d b end in g t e s t - Ex c ept for t he back c o v er o f a p icture t u b e e nc l os u re the b a ck co v er of an o v era l l e nc l os u re sha l l wi t h s t a nd ( 1) a s i n g l e - i m pa c t of 0.55 k ilo g ra m - m eters w it ho u t t he sphere p as s i ng t hrou g h t he co v er o r w i t h out produ c ing a shock ha z ard, and (2) a bending m o m ent of 0.69 k g . m eters w i thout p e r m anent da m age t o any es s enti a l p a rt o f t he cover, i f t h e co ve r has a ll o f the following f ea t ure s : a) I s of p r e s s e d wood o r t h e li k e. b) I s u s ed t o re n der pa r ts i n v o l v ing sho c k ha z ard inac c essible c) Has an a rea of m o r e than .135 sq. m . d) Has a m in i m um di m ension of m o r e than 3 .5 c m . e) F o r t h e i m pact te s t, the c o v er i s m ounted in the int e nded m anner.

64. C. Radio En c lo s ure Impact Test P a rts o f a r a d i o e nclo s ure w h ich do no t co m pl y wi t h t h e t e st op t ions 4, 5 & 6 of T a b le III sh a ll w i th s tand a s i n g l e i m pact wi t h o ut the devel o ping open i n g s lar g e r than t h ose p e r m i tt ed by fi r e and sho c k ha z ard r eq u i r e m en t s or wi t ho u t p r od u cing a sho c k ha z ard. T h e i m pact shall be 0. 6 9 k g - m e t er i f t he en c los u re i s te s ted at 90 °C , and .207 k g . m ete rs i f t he enclos u re is te s ted at 60 ° C or 90 °C . a) During the te s t, the en c l o su r e is p l a ced a g a i nst a v ertic a l wa l l.

65. D . Radio En c los u re P re s sure Test For an appliance weighing .5 k g . or less, t h e appli c a t ion of force o f 6.8 k g . f or o n e m i nu t e t o any po i n t on t he b o t tom of an o v erall e nc l os ur e, shall not r e sult i n a shock ha z ard o r in da m a g e to any pa r t o f t h e ap pl ian c e th a t r e sults a f i r e ha z ard. 1) Ra d io S p ea k er G r ills Pressure Test F o r a n a pplianc e w ei g hin g m o r e t han . 5 kg . t he applic a t i on of a f o rce of 9 k g . t o t he sp e a k er g r i l ls a n d t he li k e shall n o t r e sult in sho c k ha z ard or i n da m a g e to any part o f t h e a ppliance t h at res ul ts in fire ha z ard. 2) T he f o rce sp e c i f ied a r e applied t o the co m p l ete a p p l i ance by a 1.3 c m . d i a m et e r r o d and t h e end of w h ich is g ro u nded t o a 1.3 cm dia m eter he m isphere.

66. E. Radio En c los u r e T e m perat u re Stability Test Except as noted in R u le 0.5. G. t he en c los ur e of l i v e parts shall w i t h s t a nd t e m pe r a tu r e s t a b i lity condition d es c r i bed i n Ru l e 10.6.4 witho u t a n y sh r in k a g e, warpage, or any other d i stortion o f t he enclo s ure that w i ll ( 1) i n terfere with the no r m al ope r a t i on o r u ser ser v icing of t he ap p liance or ( 2 ) r e s u l t i n f a i l ure of t h e a p plia n ce to co m ply w it h t h e req u i re m en t s in R u l e 9.2.1 5 .A (Mecha n ic a l P r o t ec t io n ) and 9.2.14 D (Ac c es s i b le P art S hock H a z ard)

67. F. Co m ponent Pa r t s s u ch a s knobs, windows and inser t s t h a t a re d i s torted as a r esult o f t h e o v en and te m peratu r e - stability t est m ay be r e m o v ed i n o r d e r t o e li m ina t e int e rfere n ce wi t h n o r m al oper a tion or user s er v i c ing of t he a pp liance to co m p l y with the a bo v e r eq u i r e m en t s. G . At the manufacturers option a n d as a substit u te for the temperature stab i li t y t es t desc r ibed i n Rule 10.6.4 t he co m p l e t e a ppliance is p l aced i n a cir c ul a ting a i r o v en f o r se v en hou r s. T he o v en i s to be m aintai n ed at a t e m pe r a tu r e of 9 °C ; ex c ept t h at t he t e m pera t u re i s t o be 90 ° C i f t he enclos u re is o f m ate ri a ls, wh i ch has an I z o d no t ch e d i m pact stren g t h of not less than 0.27 6 6 k g . m eters per 2.5 c m . or the e nc l os u re w i th s t and a s i n g le i m pact o f 0.69 k g . m eter. T he ap p liance is n ot o p e rated during t h is te s t .

68. H . Radio G la s s D ial Win d ow that co v e r s a li v e part, un l ess of t e m pe r ed g l a ss 5 m m . m in i m um thic k , sh a l l w i th s t and a s i n g le i m pact witho u t develo p ing a sho c k ha z ard. The i mpact shall be 0.2 7 kg . m ete r s as de s c r ibed in R u le 10.6.2 u n l e ss t he w indow is prote c ted by a pe r m ane n t part of t h e appl i an c e th a t li m i t s the i m pact form the b a l l t o a l es s er v al u e.

69. I. Television E n cl o sure Impact Test T h e top, s id e s, and front of an overall television en c los ur e us e d to rend e r l i v e pa r t s i n acc e ssible o r t o co m p l e t e the nonco m bus t ible encl o s u re of parts i nvol v ing fire h a z ard, s hall w it h sta n d a s in g le i m pact i f 0.69 k g . m eters as desc r ibed i n Rule 10.6.2 w i t ho u t developing o p enin g s lar g er t h an t h ose p e r m it t ed by fi r e a nd s h ock ha z ard r e q u i re m en t s , o r w i tho u t p r oducing a sh o ck ha z ard.

70. J. Television Enclosure Pressure Test The a pp l i cati on of a . kg . fo r on e m inu t e t o an y p o i n t o f the b o ttom of an o v erall e n clos u re a nd a f o rce of 9 . 1 k g t o a n y o t her point o n t h e o v era l l en c lo s ure s h a ll not res u lt in a sho c k ha z ard or i n da m a g e to any pa r t if the a pplia n ce t hat r e sults in a fire ha z ard. a) T h e f orces speci f ied a re applied t o the c o m p l ete a p pliance by a 1.3 c m . d i a m eter r o d , the e nd of which is rounded to 1 . 3 cm dia m e t er he m isphere. K . T e le v i s ion E n cl o sure T o p Loa d in g T e st T h e a p p l ic a ti o n of f o r c e o f. k g . fo r on e m inu t e to any po i nt on t h e t op of the o v era l l en c l os u re shall not result in a sho c k ha z a r d or i n da m a g e to any pa r t of the ap p liance th a t re sults in a fire ha z a rd. a) T he 22 . 72 kg . i s app li e d by m eans of 5c m . d i a m eter steel b a l l while t h e co m p l ete a p plian c e i s resting on a ho r i zon tal s u rface.

71. L. T e le v i s ion En c los u r e T e m pera t u r e Stability Test T he e n cl o sure of live parts shall w i t h s t a nd te m perat u re s ta b il i ty cond i tions d e s c ri b ed i n R u les 10.5.1.M or 10.6.4 witho u t a n y sh ri nka g e, wa r pa g e, or any o t her d i s tort i on of t h e en c l osure t h at w i ll (1) i nt erfere with n o r m al ope r at i o n or user s e r v i c ing of the a p p l ian c e, o r ( 2 ) result i n f ai lu r e of t he a pplia n ce to co m p l y w i th t he requi re m ents i n Ru l es 9.2.14 and 9.2.15.A. M. At the m anu f acture r s option a n d a s a substitute f o r t h e te m pera t u re s t a b i l it y t es t de s c r i be d in Rule 10.6.4 t h e co m p l ete applian c e i s placed i n a circula t ing a i r o v en f or se v e n hou r s. T he o v en is m aintai n ed a t te m perat u re of 90 °C . The a p p l ian c e i s n ot op e r a ted d uring this t e s t .

72. N . Tele v ision G l a s s D i a l W indo w I m pac t Tes t glass d i a l w indo w t h a t covers a l i v e pa rt , un l e s s o f te m pered g la s s 5 m m . th i ck m ini m u m sh al l w it h s t a nd a s i n g le i m pact wi t h o ut d e v elo p i ng a shock hazard. The i m pact sh a l l b e 0.69 k g . m eters as desc r ibed in R u le 10.6.2 un l ess t he w indow is protect ed by a p e r m anent p art of the app l ia n ce th a t limits the i m pact from the b a l l to a le s s e r v alu e .

73. O . Pi c t u re T u be En c lo s ure I m pact T e s t T he t op, s i d e and front of t he enclos u r e o f a picture tube , includ i ng t he tran s pa r ent protecti v e cover i ng o v er t he f a ce of a dire c tly v iewed p i c t u re tube, s h al l w it h s ta n d a sin g le i m pact of 0. 6 9 kg . m eters as d e sc r ibed i n Rule 10.6.2 witho u t de v e l oping openin g s la r g er t han t ho s e per m itt e d i n Rule 9.2.15.H ( P i c tu r e T u be En c los u re Ope n in g s ) . T he i m pac t , wh e n applied t o t h e w i n dow s h a l l n o t result i n da m a g e t o it s m ounting wh i ch w i l l r en d er it uns u i t ab l e f or r e -us e , n o r s h a ll te m pered g la s s be c rac k ed.

74. P. Pict u r e t ub e e n c los u r e ba c k c o v e r i m pac t t e s t t h e b ac k cove r o f the en c los u r e o f a pict u re tube shall w i th s tand a sin g le i m pact o f 0.55 kg . m eter as d es c r i b ed i n R u le 10.6.2 w itho u t t he sphe r e pas s i ng th r o u g h t he c o v er, or witho u t p r o du c ing a shock ha z ard. T he en c lo s ure is te s ted w i t h the b ack co v er and pi c t u re tube m ounted in i t s n o r m al posit i o n.

75. Q . Pic t ure Tube En c los u r e Bac k C o ve r Bend i n g T est- T he bac k cove r o f t he enc l osure of picture t ube shall withstand a b e nding m o m ent of 0.7 k g . m ete r s as desc r ibed i n R ule 10.6.3 ap p l i ed f or one m i nu t e t o any 7.6 len g t h o f the p e r i m e t er o f t he c o v er w i t h out p e r m anent d a m a g e t o any e s se n t i a l pa r t of the co v er. a) A sheet - steel co v er w h i ch can be be n t a nd t h en r estored to i ts o r i g in a l s h ape wi t ho u t apprec i ab l e l o ss of m echa n i c a l stren g th n e ed n o t be s u b j ected t o t h e be n d i ng t e s t . Howe v er, s uch a co v er i s t o ha v e s u f f icient ri g idity to be se l f - supporting when s t an d ing on ed g e, or i s t o be p ro v id e d w it h a s u i t a ble fra m ewor k .

76. 10.6 TE S T M E THO DS 10.6.1 Im p l o sion A . T w o i m pl osi on m etho d s a r e d es c ribed b elo w . I f t he i m pl osi on can b e i nduced by e i th e r m ethod, the ther m a l - sho c k m ethod i s t o b e used u nl e ss the h i g h - ener g y i m pact m ethod is reque s ted by t h e m anufac t u rer. I f n e it h er m ethod w i ll in d uce the i m plosion, a n o t h er m ethod is to b e used.

77. 1) T he t h e r m a l - sho c k m ethod of i nd u cing t h e i m p l o s i o n i s as f ollow s : T he ri m of t he p i c ture t u be a d j a ce n t t o t he seal i s t o b e scr a tch e d w i th a g l a ss c u t t e r, d i a m ond s c r ib e r o r h a rd t o o l. S ix 19 m m . long sc r atc h es are m ade paral l el to t he c enter h o rizo n t a l axis of t h e t u b e and s p ac e d to occupy an area app r o x i m ately 9.5 m m . i n d i a m eter, is h e a ted until nearly f l u id. The h e a ted end of t he r od is p as s ed through a p rep a red a cc e ss ho l e in t h e ca b in e t and p r e s s e d f i r m l y on t he s c ra t ched su r face o f t h e t u b e. I f i m p l os i on d oes n ot o cc u r wi t h i n 1 s e c onds, t he r o d i s t o be w ithdrawn a nd c old w a ter i s p o ured s l ow l y on the scr a t c hed a r e a. I f i m p l os i on i s n o t indu c ed, t h e proce s s is to be rep e ated.

78. 2) T h e h i gh - energy i m pact m ethod of i nducing i m pl osi on i s a s f ollows. A 2.5 c m . d i a m e t er s te e l p i ns i s t o be inserted t h r o u g h a pre p ared h o le i n t he c abin e t and c au s ed to s et o n t he ri m of the tu b e near t he f ace s e a l l ine. A w ei g ht of 4.5 k g . or hea v ier if nec e ssary t o i nd u ce an i m pl o sion, i s m ade t o fall from a he i g ht of approx i m ately 1.4 m e t e r s and i m pact t he p i n at t he end of its f r e e f a l l. An equ i v a l e nt i m pact m ay be used. T he i m plosion i s r e s tricted so that its tra v el on i mpact i s on l y enough to i n duce t h e i m plosion.

79. 3) T o te s t t h e en c lo s u r e f o r t he pict u re t ube i m p l os i o n t he applia n ce is to be c om p l e t e w i t h a l l hardware and covers in p l ace e x ce p t for a cce s s holes r eq u i r ed f or te s t pu r poses. A t ab l e m odel applian c e i s p laced on a 76 c m . h i g h ri g i d tab l e - l i k e t est stand. A flo o r m o del app l ian c e t e st e d s t anding on t he f loor. T wo barri e rs, each 1.3 c m . t hick, 24 c m . h i g h, and 1.8 m eters l on g , a r e p la c ed on t he f l oor. T he b a r r i e rs a re l o c a ted a t d i s t a nc e s 1 a n d 1.5 m eters from t he p l a ne of t he fr o nt ed g e o f t he en c los u re, respec t i v el y . A no n - s k id surfa c e, such as a blan k et o r r u g , is placed o n t he f loor betwe e n t h e ap p l i an c e and t he s e cond b ar r i e r.

80. B. An app l ian c e co m plies w i th t he p i c ture t u b e i m plos i on r e quire m en t , if after t he indu c ed i m pl osi on of the pi c tu r e t u b e, a l l o f t h e f o llo w ing con di tion ex i s t : 1) T h e prote c ti v e w i ndow has not fa l len or b e en ex p e l l ed from the cab i n e t as a un i t except f or s il v e r s. 2) Th e re is no sin g le p i ece of glass w ei g hing m o r e t h a n 14.2 g ra m s b e twe e n t h e tw o ba r ri e rs. 3) The total w ei g ht o f a ll pi eces of g la s s between the tw o ba r ri e rs is n o t m o r e t h a n 42.5 g ra m s. 4) The r e i s n o g la s s, e x ce p t sil v ers, be y ond t he b a rri e r t h a t is 1.65 m ete r s fr om t he fr o nt e n d o f the e nc l os u re.

81. 10.6.2 I mp a ct A . T he i m pact f o rce a pp l i e d t o a p a rt o f an encl o su r e i s ob t a in e d f rom a so li d, s m ooth, s te e l sphe r e 5 c m . i n d ia m e t er and w e i g hing 0.5 k g . t he sp h e r e i s al lowed to f a ll fre e ly f rom rest t h r o u g h t he distan c e re q uired to ca u se it t o s tri k e t he t op of the e nc los u re w i th t h e sp e c if ied i m pac t . T h e e n closure is p l a c ed so t h at t h e surf a ce tested is v er t ic a l and i n t he sa m e v er t i cal p la n e as t h e po i nt of support o f t h e pendulu m . Par t s o f the e nc l osu r e t h at m ay interfere wi t h t he cord of the pend u lum are to be re m o v ed.

82. 10.6.3 Ben d i ng A . T he ben d i ng m o m ent a p plied to a p a r t of an e nc l o s ure s uch as a p r o d uction co v er, i s o b t a in e d as follow s : An ed g e or a co r ner of t h e part i s t o be te s ted is ins e r t ed t o m a k e c o n t a c t w i th the v ertic a l ed g es t o t he two s ide p i ec e s of t he de v ice. A downw a rd for ce is ap p lied i n a d i r e c t i on p e rpe n d i c u l a r t o the p a rt, t o t he o p po s i t e e d g e of t he p a rt at a point d i r ec t ly opposite t he d e v ice. T he f o rce i s g r ad u a l ly increa s ed u n til we i g ht of t h e de v ice is l i fted.

83. 10.6.4 T e m pe r a tu r e S t ab i l it y A . A s a m p l e of the co m plete a pp l ia n ce ap p l i ed is p l aced i n a cu b i c al, un v en t e d t e s t c e ll ha v ing a v o l u m e not l ess than 40 t i m es t hat of t he ap p l i a nce a nd so a rran g ed t h a t t h e c i r c ul a t i on of a ir w i t h in t he ce l l s i m ulates n o r m al room conditions. T he a ir te m pera t ure within the c e lls as meas u red a t t he b ase o f the a p p l ian c e, i s m ai n ta i n ed at 60 °C . T he ap pl ian c e is c o nne c ted t o a 13 - volt supply circ u it a nd ope r a ted c o ntinuo u sly for s e v en hou rs wh i l e rest i ng on a suppo rti ng su r face having an area app r o x i m ately eq u al to t hat of t h e a p p l ian c e b a se a n d c en t ra l ly loc a ted in the t e st c ell.

84. 10.6.5 T e st by t h e M a nu f a c tur e r A . Production L ine With st and T e s t Exce p t a s noted i n Rule 1 0. .5. D ea c h appliance shall w it h s ta n d w itho u t e le c t r ic a l brea k down, as a r outine produ c ti o n - line te s t, t h e a p p l ic a ti o n of a p o te n ti a l not l e s s t han 350 v o l ts 60 Hz or 500 v o l ts DC, b etw e en p a rts in v ol v ing shock ha z ard a n d a c ce s si b l e m etal parts, f o r a per i od o f one s e cond. B. I f t he fa c to r y t e s t p o te n tial is g r e a t er t h a n th a t s p e c i f ied i n R ule 10.5 . 5 A, i t is recom m ended, in o r de r no t to c ause component degradation, t h a t i t m us t no t ex c eed t he m anu f a c ture r s or vendors an t ic i pa t ed te s t poten t i a l (co m ponent m a r k ed r ating ti m es a fact o r f or s af e t y ) f o r t h e i n d i v id u a l co m ponent s t r e ss e d.

85. 10.7 Mar k ing 10.7.1 Marking Type and Size - a required m ar k ing sh a l l b e o f a p e r m anent a nd l e g i b l e t y pe, and exce p t a s noted in Ru l e 10 . 7.2 shall be in l e t ter not l es s t h a n 2.8 mm . h i g h. 10.7.2 T he m a r k i n g s of r ules 10.7.3 ( I dentif y ing and Rat i ng I nfor m at ion) , Ru les 10.7.5 ( Applia n ce I ns t al l a ti o n and Opera t ion I nstructi o ns), 10.7.6B ( A cce s sory I ns t a ll a t i o n I nstruction ) , 1 .7.7 (U s e r -se r v ic e ab l e Co m ponen t s D i rect o r y ), 10.7.21 (Par a ll e l - Slot T y pe Rec e pt a c l e M a rkin g ), 10.7.26 (Prote c ti v e De v i c es Re p l ac e m ent Mar k in g ), and 10.7.6 ( Ac c ess o ry I dentific a ti o n Mar k in g ) need not to be i n 2 .8 m m . h i g h letter if di s t i n c t i v e in a s m aller typ e.

86. 10.7.3 Identifying and R a t i n g I nfo r m ation - T h e m arkin g o f the ap pl ian c e shall be readily visible and shall include t he n a m e or trade na m e of the manufacturer's d i s t i n c t i v e nu m ber of or eq u i v al e n t des i gna t ion, and the el e c t rical r a tin g : A . T he ele c t r ic a l r a t i ng of an appliance i n c lud e s t he pri m ary v ol t a g e, fr eq u e n c y , (c y cles per secon d , c y cl e s/seco n d. He rt z , c / s, c p s, or H z ), and i np u t i n a m pere watts.

87. B. The m a r k ing m a y b e l oc ated w here it i s v i s ible only a f t e r re m o v ing a co v er if t he co v er c a n be re m o v ed wi t hout the use o f a to o l, a n d be a co m b i n a ti o n of c h as s is m a r k i n g s. 10.7.4 An ap p l i a nce t h a t i nc o rp o rates a rec eptacl e t h a t i s intended f or an extern a l o r i ntern a l acc e ss o ry and that i s r ea d i l y v is i ble witho u t re m oving covers m ay be m ar k ed t o show t he ap p liance a n d rec e pt acl e r atin g s s ep a rat e l y . I f t he rec eptacl e f or a n i n t e rn a l acc e ss o ry i s not r e ad i ly v is i b le w it h o u t re m o v ing c o v ers, t h e e le c t r ical r a t i ng should i nclude t he p owe r i npu t sep aratel y , e. g ., “ T e l e v is i o n0 w a t t s , w i th re m ote 00 w a t t s”.

88. 10.7.5 Appliance Installation and Op e r a ti o n Instructions -An i n s t a ll a t i on dia g ra m o r i nstructi o n sh a l l a cco m pany an applia n ce if t he c o nne c tions a nd m etho d s of op e ration a r e such t h a t the r e m ay be any que s tion re g ar d ing the m . 10.7.6 Accessory Identification Ma r k ing- A n accessory for use w i th an a pp l ia n ce th a t is not m ar k ed to sp e c i fy t he u s e of a p a rt i cul a r a c ce s so r y shall b e m a r k ed t o indi c a t e t h e p a r t ic u l ar ap p l i a n ce with w h i c h it m ay be u s ed.

89. A . T he m arking m a y app e ar eith e r on the a cce s so r y or on l it e ra t ure p a c k ed w i t h i t , or p a rt o f t h e m ar k i n g m ay be on t he a c c ess o ry and p a rt o f li t e r at u re pac k ed with it. B. Accessory Installation I ns t r uc t io n s- I nstruction s for i n s t a l l ing an acc e ss o ry shall b e p ro v ided un l e s s t he m ethod o f inst a ll a tion o r conn e c t ion of t h e a c ce s so r y i s obvi o us. T h e i n stru c t i o n s ha l l be loc a ted on the rec e i v e r, on t he ac c es s or y , or on l iter a tu r e pac k ed with the a cc e s s o r y .

90. 10.7.7 U ser - Ser v iceable C o m ponen t s D ire c to r y- The locations and type d e s i g na ti o n of picture tubes, and u s e r - ser v iceable co m ponents, e . g ., t ubes, p a nel la m ps, v ib r ators, etc., s hall be m a r k ed on t h e applian c e wh e re t h e m arking wi l l b e r ea d i l y v isible du r ing s e r v i c ing of t he co m ponents, u nle s s replace m ent o f the co m po n ents by a d i f f e re n t t y pe w i ll not p r odu c e ha z a r d. 10.7.8 T u b e s o c k et b ran di ng or a t ube d i r e c t l y on t h e i n s i d e of a c ab i net or on t he under s ide o f a ta b le t y pe c abinet is con s i d ered ac c eptable.

91. 10.7.9 User - Ser v icea b le C om ponents Servicing Instruction- I f us e r - ser v i ceable p a rts c an be m ade acc e ssible by o t h er t han t he i n tend e d m ethod, and i f t h e i m proper m ethod r e s u l ts i n a ha z a r d, instruc t ions f or use r - ser v icing sh al l be p ro v ided t o s h ow t he intended m eth o d; e xcept t h at i n s t r u c t ions are n o t r e q u i red i f t h e i n t e nded m ethod is obvio u s. The i nstruc t ion s , when r e q u i r e d , shall be lo c at e d w he r e rea d ily v is i b le f r om t he li k ely app r o a ch to using the i m proper m ethod o f use r - ser v icing.

92. 10.7.10 No Us e r - Ser v i cea b le P a rts and Compartment Warning A co m part m en t in v ol v i n g sho c k ha z ard, housing no use r - ser v icea b l e parts a nd no p l ug in t y pe h i dden t u b e or vibra t o r, shall b e m ar k ed w he r e r ea d ily v is i b l e during any app r oach to s e r v i c in g . T h e m ar k ing sh a ll c o ns i s t o f the f ollowi ng warn i ng or eq u i v a l e n t; “CA UT I O N - TO PREVENT ELE C T R I C A L SHOCK. DO N O T REM O VE C O VER ( OR B A CK). NO USE R - SERV I C EA BLE P A R T S IN S I D E. RE F ER SE R V I C IN G T O QU A L I FIED S ER V I CE PERS ON NE L .”

93. 10.7.10 No n -Use r Servi c e a ble Vacuum Tube N otice- Excep t a s no t ed in Rule 10.7.11.A t h e re sh a l l b e a n o t i c e locat ed a d j a c ent to or p a rt of t h e m a r k ing requi r ed i n R u le 1 .7.10 f or a n o n - use r -se r v ic e ab l e vacuum tube . T he m ar k in g sh a l l cons i s t o f the f o l l o w i n g no t i c e o r equ i v al e n t “ V A C U UM TUBE S OL D E RED I N PLA CE”. A . T he no t i c e ne e d not be p ro v ided whe n : a) T he vac u um tube i s not v isib l e throu g h openin g s i n t he o v er a ll c o m part m ent, or b) I t i s obvi ous from the o u t side o f t h e co m pa rt m ent t h at the v acuum tube is so l de red in plac e .

94. 10.7.11 Re m o v able Fron t Co v e r Warning - I f a r e m o v able f ront co v er pro v i d es prot e c t ion f o r li v e parts wi t h i n t h e p i cture - tube enc l o sure i n ac c ord a nce wi t h Rule 9.2.2 I tem F.a. a warn i ng no t ice or t h e equ i v a l e nt s ha l l be v isible when t h e f ront c o v er is opened, e. g ., “ T O PR E VE N T DA N GE R OU S E L E C TR I C A L SHOCK. RE P L A CE FRON T C O VER BEF O RE R E P L A CING B AC K C O VE R .”

95. 10.7.13 Pict u re T u b e W i n do w Barrie r Wa rning - A barrier , s u ch as a m a s k , that renders parts in v ol v ing shock ha z ard i n a cce s si b le when a p i c tu r e t u be is r e m o v ed or o p ened during u s er ser v icing a nd th a t is sec u red i n place by m eans t hat req u i r e s t h e use of a t ool f or r e m o v al of t he b a rri e r desc r ibed i n I t e m F.b.b i n Rule 9.2.2 sha l l be m ar k ed w it h a w ar nin g a g ains t t he r e m o v a l o f t he ba r r i er, e. g ., “ T O PREVE N T D A N G E ROU S E L E C TR I CA L SHOCK, DO N O T R E MOVE T H I S MASK.” T h e m ar k ing i s to be lo c at e d w here i t w ill b e read i ly v isible a f t er re m o v ing or open i ng t h e windo w .

96. 10.7.14 PR O J E C T I O N T Y P E P I C TURE TUBE WARN I N G- If the re p l a ce m en t o f a pr o jectio n -type pict u r e t u b e i s not to be c o nside r ed as a p a r t o f user-servicin g , th e picture - tub e enclo s ur e s h a l l be m ar k ed whe r e rea d i l y vi si b le, w i t h a warning a g ainst user s er v i c ing of t he p ic t ure t u be, e. g ., “WAR NIN G -H I G H VOLTAGE D O N OT E N T E R . ”

97. 10.7.15 Pict u re T u be H a n d li ng Wa r n ing- A n a ppliance e m p l o y i ng a picture tu b e ha v ing a m ax i m u m d i a m e t er of 15.25 c m . or m o r e sh a ll ha v e a su it a ble n o tice l o ca t ed near the t u b e whe r e it i s rea d i l y v i s ible from any a pproach t o r e m o v ing t he tube d u ring any phase o f u ser ser v icin g , i n c lu d i ng open i ng or re m oving cove r s. T h e notice is to be m a r k ed w i th the f ollo w ing warn i ng or t he eq u i v ale n t i n w h i ch “FR A G I L E G L A S S ” m a y be sub st it u ted f o r “H I G H V ACUUM”. H IG H V ACUUM P IC T U RE TUBE I S D A N G E RO U S T O HA N DL E . RE FER SERV I C I NG T O QUAL I FIED SE R V I C E PERS ON NE L .

98. 10.7.16 I f an ap pl ian c e c o n tains n o u se r - ser v ic e ab l e p arts, t he sound s enten c e o f t he m ar k ing m ay be o m it ted. 10.7.17 P i ct u re T u b e Replacement Warning - A n appliance employing picture t ube having integral i m pl osi on p rotec t ion shall ha v e a su i tab l e no t i c e l o c a t ed ne a r t he t ube wh e re i t i s r ea d ily visible from any app r o ach to re m o v in g t ube. T he warning is to be t h e follo w i n g o r t he equivalent "THE P I C TU R E TUBE I N T H I S RE C E I VER E MPLOYS I N TE G R A L IMPLOS I ON PR O TECT I O N , RE P L A CE W I T H A TUBE O F T H E S AME T Y PE N UMBER F O R CO NTINUED S A FETY.”

99. 10.7.18 H i g h Volta g e De t e r m ina ti o n Ma r k ing- E x cep t a s n o t e d i n r ule 10.7.19 , the r e s hal l be a suita b l e m ar k ing de s cri b i n g t he p r o p er m ethod of deter m i ni ng t he presen c e o f hi g h v o lt a g e an t h e pict ur e tube ano d e lead. The m ar k ing sha l l i n di c a t e the p o i n ts t o w hich conn e c t ions can b e m ade w it h out crea t ing the co n d i t i o n s de s c r ibed in Rule 10.3.9 ( Pict u re T ube Anode Lead T e s t ) . T h e m arking sh a ll be l oc a ted to check the hi g h v o l ta g e op e r ation.

100. 10.7.20 I nterloc k War n ing-A n applianc e tha t inc o r p orate s an interlock device complying with item T .b o f Ru l e 9.2.14 ( I N TERL OC K), s h a l l be m ar k ed where i t w i l l be r ea d i l y v is i b le during any app r o a c h to defeat t he int e rloc k , wi t h ( 1) a s t a te m ent t h at an i n terlock i s p r o v i d e d to pre v ent dan g e r o u s e l ec t ric a l shoc k , w i th t h e g ener a l l oc at i on of t he i n terl o c k , ( 2) a warn i ng a g ainst d efea t ing t he i n t e rl o c k , and ( 3) a s t a te m ent t h at the co v er s ha ll b e re m o v ed f or ser v icin g . 10.7.21 P a rall el - Slot Type Recepta c le Mar k ing A r ece p ta c le of the c on v en t io n a l para l l e l - slot t y pe th a t i s uti l i z e f o r the c on nec t ion o f a part o f t h e a ppliance shall ha v e t h e e l ec t ri c al r ating i n v o lt s, f r e q uenc y , and w a t ts indic a ted by m eans of a m ar k ing on or n ear the r e ce p ta c le.

101. 10.7.22 No n- Stand a rd T y pe Receptacle Marking - A r ecept a c l e o r connec t o r o f ot he r t han t he con v ent i o n a l para l le l - slot t y pe, wi t h or w itho u t a j u m pered p l u g , (1) t h at i n i t se l f i n v o l v es ha z ard o us ener g y , ( 2) t h at is r ea d i l y p erc e p t ible by the u s e r, a nd ( 3) t h a t is not uti l i z ed f or t h e co n ne c t i o n o f a p a rt o f the a p plian c e, sha l l be m a r k ed, where read i ly v is i ble, t o indi c ate t he sp e c i f ic ac c epta b le acc e ss o ry or t h e acce p t a b le u se for w h ich it is int e nded.

102. 10.7.24 F u s e R eplace m en t M a r k ing- T h e re shal l be a re p la c e m en t m ar k in g ad j acen t t o a fus e or fuse holder if t he f u se i s used to p re v ent f ire ha z ard. The m ar k ing sh a ll b e loc a ted wh e r e i t w i l l b e rea d i ly v is i ble durin g r e p l a ce m en t o f t h e fus e and sha l l con s i s t o f t h e follo w in g wordin g , o r the e qui v a l ent, e. g ., “C AU T I O N F O R CON T I NU E D PRO T ECT I O N AGAINTS F I R E HA Z AR D , RE PL A CE O NLY W I T H T H E SAME T Y PE 1 A - 50 V FUSE.” I f the f u s e i s s o l d e red in p lace and i s pe r c e p t ib l e during user servi c in g , t he m ar k ing sh a l l, i n ad d ition t o the a b o v e, i n c lude t he f ollo w ing word i ng or t h e e q u i v a l e n t , “R E F E R RE P L A CEME N T T O QUAL I FIE D SERVI C E PE R S O N N E L .” I f t he a v ai l a b l e spa c e d o e s not pe r m i t locating t he f u s e r eplace m ent m ar k ing a d j acent t o t he f u se or f u s eh ol der , or i f t h e a pp l ia n ce e m p l o y s m o r e t han o n e f u s e or f u seh o ld e r requ i ring ma r k i n g , ex c e p t f o r t h e r a ti n g , m a y be at so m e o t h e r loc a t i on wh e re i t w i ll be r e ad i ly v i s i b l e during re p l a c e of t h e f u se.

103. 10.7.25 P i lo t La m p Repl a c e m en t Mar k ing - E x ce p t a s n o te d in R u l10.7.24 0, t her e s h a l l b ea pil o t la m p rep l a c e m ent m ar k in g . T he m arking sh a ll ind i cate wh e re i t w i ll be r e a dily v is i ble during user se r v i c ing and shall c o nsist of t he following or t he e qu i v a l e n t, “P I L O T LAMP SOL D E R E D I N PLA CE. T O P R E VE N T E LE C T R I C SH O CK, RE FER T O Q U A L I F I ED S ER V I CE PE R SONNE L .” T he m a r k i ng need not b e pro v ided whe n : a) T he p i lot la m p is n o t s o l dered is pl a ced. b) The p ilot la m p has an e s t i m a t ed life of 5000 ho u rs, o r c) I t i s obvio u s during us e r - se r v i c ing th a t t h e l a m p l ea d s a re s o ld e red in p l ac e .

104. 10.7.26 P l u g -i n Co m ponen t Replace m en t Mar k ing - A co m ponen t su ch as a r e s i s to r o f t h e p l u g - in t y pe that is so d a m a g e du ri ng the te s ts d e s c r i b ed i n this Co d e t h at re p lace m ent i s nece s sar y , and that is acc e ssible during us e r s e r v ic i n g , shall b e pro v i ded w i th a d i s t in c t i v e m ar k ing identifying the m anu f a ct u r e r and co m ponent t y pe des i g n at i on; and a m ar k ing sh a ll be located on the ap p l i a nc e , whe r e i t w ill be rea d i l y v is i ble during u s er ser v ic i n g , i nd i c a t ing t he m anufactur e r, t he t y pe d e s i g nat i o n, and t he l o c a tion of t h e co m ponent. 10.7.28 I t i s reco mm ended that rec o rds s u i ta b le for su c h u se be m a r k ed with t he w o rds “S l o w -Burn i n g ” o r “S a f e t y .”

105. 10.7.29 X - R ad i a t ion U n d er Servi c ing Cond i t i on Mar ki ng - A n appl i anc e t h a t d o e s n o t co m p l y wi t h the r eq u ire m ent of Rule 10.1.15 ( X - Radi a tion U nd e r Servi c ing Cond i t i on T e s t ) s h a l l ha v e a s u i t a ble warn i ng l o ca t ed on t he c h a ssis where read i ly v isib l e during ser v icing. The m arking sha l l c on s ists of t he follow i n g o r t h e equivale n t“SE R V I CEMA N - WA RN I NG T O AVO I D POS S I B L E EXPOS URE T O X - R A D I A T I O N, T AKE X - RA D IA T I ON P R OTECT I VE MEAS U RES (SEE SERV I CE MANUAL) FOR P ER S O N N EL DU R ING SE R V I CING.

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107. E xt e rn a l A n te n na S hock Ha z ard – T he a v ai l ab l e s t eady - s t a t e curre n t bet w een grou n d a n d a ny one s e t o f e x t e r nal a n ten n a te r m i n a ls o f an applia n ce s ha l l not be m o r e than o n e m i l li a m phe r e. Cu r re n t Meas u re m ent as m ade wi t h t h e a t t a c h m ent p l ug cap on t he sup pl y co r d inserted i n the supp l y c i rc u it re c ep t ac l e in one position a n d with t he s upply ci r cu i t co n diti o n to t he re c ep t a c le re v ers e d. I f the a pp l ia n ce h as a dire c t - current r a t i ng m easure m ents a r e m ade w ith t he ap p l i a n c e con n ec t io n s i n t u rn t o each s i d e of a t h r e e - w i r e, di re c t c u r r e nt sup p ly cir c u i t.

108. Table of contents 01 You can describe the topic of the section here 03 You can describe the topic of the section here 04 You can describe the topic of the section here 02 You can describe the topic of the section here Theory Study plan Developing Investigation

109. Whoa! This can be the part of the presentation where you introduce yourself, write your email…

110. Advantages of electronics Mercury is closest planet to the Sun and the smallest one of them all Venus has a beautiful name and is the second planet from the Sun Efficiency Innovation

111. Evaluation criteria Despite being red, Mars is a very cold planet full of iron oxide dust Jupiter is a gas giant and the biggest planet in our Solar System Saturn is a gastly planet composed mostly of hydrogen and helium Impact Effectiveness Relevance

112. What are the job positions? Mercury is the closest planet to the Sun Saturn is composed of hydrogen and helium Jupiter i s the biggest object in the Solar System Despite being red, Mars is actually a cold place Machinery Hardware Robotics Building

113. Study process The Moon is Earth’s only natural satellite Study Jupiter doesn’t have a solid surface Understand Saturn is one of the gas giants with rings Remember Neptune is the farthest planet from the Sun Exercise 01 02 03 04

114. What do electrical engineers do? Mercury is the closest planet to the Sun Venus has a beautiful name, but it’s terribly hot Despite being red, Mars is a cold place It’s the biggest planet in our Solar System Saturn is one of the gas giants with rings It’s the farthest planet from the Sun Mercury Venus Mars Jupiter Saturn Neptune

115. Awesome words

116. Study plan 02 You can enter a subtitle here if you need it

117. — Someone Famous “This is a quote. Words full of wisdom that someone important said and can make the reader get inspired.”

118. A picture is worth a thousand words

119. An image reinforces the concept Images reveal large amounts of data, so remember: use an image instead of a long text. Your audience will appreciate it

120. 10,000,000 Big numbers catch your audience’s attention

121. Subjects of the week Time Monday Tuesday Wednesday Thursday Friday 9:00 Project Theory AutoCAD Process Techniques 10:00 Electronics Techniques Electronics Circuit Project 11:00 Process Project Process Techniques Theory 12:00 Circuit AutoCAD AutoCAD Electronics Process 13:00 AutoCAD Electronics Techniques Project Circuit 14:00 Techniques Process Circuit Theory AutoCAD

122. 333,000 Earths is the Sun’s mass 9h 50m 23s Is Jupiter’s rotation period 386,000 km Distance between the Earth and the Moon

123. Success of our students Earth is the third planet from the Sun Despite being red, Mars is a cold place Neptune is the farthest planet from the Sun Earth Neptune Mars 50% 20% 30%

124. Desktop software You can replace the image on the screen with your own work. Just right-click on it and select “Replace image”

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127. Developing 03 You can enter a subtitle here if you need it

128. Top companies Mercury is the closest planet to the Sun It’s the biggest object in the Solar System Despite being red, Mars is a cold place Mercury Mars Jupiter

129. Teaching model Venus has a beautiful name, but it’s terribly hot Year 3 Despite being red, Mars is a very cold planet Year 1 Saturn is one of the gas giants with rings Year 2 Model Jupiter Jupiter is the farthest planet from the Sun Mars Despite being red, Mars is a cold place Neptune It’s the farthest planet from the Sun

130. Research steps Jupiter Jupiter is the farthest planet from the Sun Saturn Saturn was named after a Roman god Mercury is the closest object to the Sun Mercury Mars Despite being red, Mars is a cold place 01 02 03 04

131. Calendar of the week Monday: Write here the important tasks of the day Tuesday: Wednesday: Thursday: Friday: Notes: Write your notes here Write your notes here Write your notes here Write your notes here To do: Write your tasks here Write your tasks here Write your tasks here Write your tasks here Write here the important tasks of the day Write here the important tasks of the day Write here the important tasks of the day Write here the important tasks of the day

132. Investigation steps It has a beautiful name, but it’s terribly hot Venus Despite being red, Mars is a very cold planet Mars Saturn is one of the gas giants with rings Saturn 01 02 03

133. Project process Test 1 Test 2 Final Circuit 0,06 0,38 0,38 Components 0,11 0,53 0,38 Velocity 95,2 9,4 1,16

134. Student evolution Follow the link in the graph to modify its data and then paste the new one here. For more info, click here Mercury is the closest object to the Sun Mercury Mars Despite being red, Mars is a cold place Saturn Saturn is composed of hydrogen and helium

135. Our team You can replace the image on the screen with your own You can replace the image on the screen with your own Frank James Anna Doe

136. Does anyone have any questions? [email protected] [phone] yourcompany.com Please keep this slide for attribution Thanks !

137. Alternative resources Here’s an assortment of alternative resources whose style fits the one of this template Photos Hardware technician students practicing with computer components Smiling young male it technician with hardware equipment's Top view wires tech background High angle blue item technology background Technology background with chip Tech background close up Technology background top view Hardware component close up Hardware component background Close up technological pieces background Technology background texture I Technology background texture II Technology background texture III

138. Resources Did you like the resources on this template? Get them for free at our other websites: Photos Technology background texture Close up hardware component background Young male it technician repairing motherboard on table It technician repairing hardware equipment's looking at laptop Red themed motherboard with processor socket Flat lay technology background Top view hard drive with purple light Close up wires tech background Red themed motherboard with memory slots Top view circuit board close-up Close up woman working in research Medium shot beautiful woman posing Circuit board close-up with different components I Circuit board close-up with different components II Circuit board close-up with different components III Top view circuit board close-up Circuit board close-up with different components IV Top view circuit board close-up Circuit board close-up with different components V Circuit board close-up with different components VI Circuit board close-up with different components VII

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144. JANUARY FEBRUARY MARCH APRIL MAY JUNE PHASE 1 PHASE 2 Task 1 Task 2 Task 1 Task 2 JANUARY FEBRUARY MARCH APRIL PHASE 1 Task 1 Task 2

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152. Add the title here Text 1 Text 2 Text 3 Text 4 Text 5 Text 6 2016 2017 2018 2019 2020 “Despite being red, Mars is actually a very cold place” “Mercury is the smallest planet in the Solar System” “Neptune is the farthest planet from the Sun” “Saturn is a gas giant and has several rings” “Venus is the second planet from the Sun and is terribly hot” Premium infographics

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