fdocuments.in_ie-rules1956.ppt

IE RULES

1. INDIAN ELECTRICITY RULES 1956
TheIndianElectricityAct,1910dealswiththeprovisions
relatingtosupplyanduseofelectricalenergyandtherights
andobligationsofpersonslicensedunderpartIIofthatact
tosupplyenergy.
Section35-Advisoryboards
Undersection36AoftheAct,aboardcalledCentral
ElectricityBoardisconstitutedtoexercisethepowers
conferredbySection37.

2. PART IV
Section36A–CentralElectricityBoardshallbe
constitutedtoexercisethepowersconferredbysection
37
Theboardshallconsistof
1.Achairmanandfiveothermemberstobenominated
byCentralGovernment
2.Onemembertobenominatedbygovernmentofeach
state
3.Onememberbyrailwayboard
4.OnememberbyChiefInspectorofMines
5.OnememberbyISI

3. PART IV
Section37–PowersforBoardtomakerules
CEBmaymaketherulestoregulatethegeneration,
transmission,supplyanduseofenergy.
Inexerciseofthepowersconferredunderthe
sectionstheCentralElectricityBoardframesthe
IndianElectricityRules

4. IERULES
•Therulesregardingthesafetyin
constructionanduseofelectrical
installations/plants/equipmentsare
framedbyCentralElectricityBoard.
•TheI.E.ruleswerefirstframedin1922and
amendedin1937and1956.
ObjectiveofI.E.Rules
•To regulate the relation between the
Electricity Supplier and Consumer
•To make the generation, transmission,
distribution and the use of electricity as safe
as possible.

5. INDIAN ELECTRICITY RULES 1956
•Chapter I–Rules 1 to 3 Preliminary
•Chapter II–Rules 4 to 10 Inspectors
•Chapter III–Rules 11 to 28 License
•ChapterIV–Rules29to46General
SafetyPrecautions
•ChapterV–Rules47to59General
conditionsrelatingtosupplyanduseof
energy
•ChapterVI–Rules60to62Electric
supplylines,systemsandapparatusfor
lowandmediumvoltages

6. INDIAN ELECTRICITY RULES 1956
•Chapter VII–Rules 63 to 73 Electric supply
lines, systems and apparatus for high and
extra high voltages.
•Chapter VIII–Rules 74 to 93 Overhead
lines
•ChapterIX–Rules94to108ElectricTraction
•ChapterX–Rules109to132Additional
precautionstobeadoptedinMinesandoil
fields
•ChapterXI–Rules133to143Miscellaneous
•AnnexuresXIV

7. INDIAN ELECTRICITY RULES 1956
Rule1,2&3comesundertheheadingofpreliminary.
Rule1–Shorttitleandcommencement.
Rule2–Definition–Act,ampere,authorisedperson,danger,
earthingsystem,cable,span,supplier,system,lightingarrester.
Ampere–meansaunitofelectriccurrent
Bare–meansnotcoveredwithinsulatingmaterial
Cable–meansalengthofinsulatedsingleconductor(solid/
standard)oroftwomoresuchconductorseachprovidedwithits
owninsulationwhicharelaiduptogether,suchinsulatedconductors
mayormaynotbeprovidedwithanoverallmechanicalprotective
covering.
Danger–meansdangertohealthordangertolifeoranypartofbodyfrom
shock,burnorotherinjurytopersonsorpropertyorfromfireor
explosion,attendantuponthegeneration,transmission,transformations,
conversion,distributionoruseofenergy.

8. RULE 3 AUTHORISATION
Subrule2A–Nopersonshallbeauthorisedtooperateor
undertakeoperationandmaintenanceofanypartor
wholeofgeneratingstationofcapacity100MWandabove
togetherwiththeassociatedsubstationunlessheis
adequatelyqualifiedandhassuccessfullyundergonethe
typeoftrainingspecifiedinAnnexureXVI.
1.Trainingmaybearrangedinhisowninstitute.
2.Thisdealswithdetailsoftrainingforskilledemployees
andfreshengineers.
CREATIONOFINSTITUTE
Everytraininginstituteshallbeestablishedadjacenttoa
powerstationsoastofacilitatefamiliarizationand
provideinplanttraining.

9. INDIAN ELECTRICITY RULES 1956
ChapterIII–dealswith
qualificationsofinspectors,
powerstotheelectricalinspectors.
Rule5EntryandInspection.
AnyInspectormayenter,inspect
andexamineanyplace.

10. INDIAN ELECTRICITY RULES 1956
ChapterIV–Generalsafetyrequirements
Rule29Construction,installation,
protection,operationandmaintenanceof
electricsupplylinesandapparatus.

11. INDIAN ELECTRICITY RULES 1956
•Allelectricsupplylinesandapparatusshallbeof
sufficientratingsforpowers,insulationandestimated
faultcurrentandsufficientmechanicalstrengthforthe
dutywhichtheymayberequiredtoperformunderthe
environmentalconditionsofinstallationsandshallbe
constructed,installed,protected,workedandmaintained
insuchamannerastoensuresafetyofpersonneland
property.
•TherelevantcodeofpracticeoftheBISmaybefollowed
tocarryoutthepurposeofthisruleandintheeventofany
inconsistencytheprovisionsoftheserulesshallprevail.

12. INDIAN ELECTRICITY RULES 1956
Rule29Wheredeathiscausedby
electrocutiononaccountofdefective
insulationofanelectricpumpandthe
earthingsystem,theprincipalofthe
Institution,itssecretaryandChief
Executiveofthegoverningbodyofthe
institutionwheretheaccidenttakes
placeareallliabletoprosecution.

13. INDIAN ELECTRICITY RULES 1956
Rule30(4)Thecustomershall
alsoensurethattheinsulation
underhiscontrolismaintained
inasafecondition.

14. Accidents & Main Reasons
Unauthorizedpersonsworkingonlines/equipment
Workingwithoutusingsafetyappliances
Workingwithoutobtainingproperlineclear
Workingwithoutproperinstructionsfromsuperiors
Wronginstructionsfrompersonwhoreceived
thelineclear
Negligence,carelessness,hasteandoverconfidence
Lackofknowledgeonfeedingarrangements

15. Precautions to avoid accidents
•Obtaining proper line clear from all possible sources of
supply shall be taken and the following precautions are
to be taken.
•1.Till a L.C. is received from all sources
every line or equipment shall be treated as live.
•2.Hang “Danger” boards at all strategic
places to ensure safety at work spot
•3.Explain the area which is safe to work
and ensure that every employee in your team
has understood the same.
•

16. Precautions to avoid accidents(Contd.)
•4.Nominate one among the team exclusively to
reap a close watch and ensure that every person in
the team is safe.
•5.Earthing is to be provided on both sides of the
work spot before proceeding with the work.
•6.All safety rules are to be followed till entire
work is completed.
•7.Insulated earth rods with clamps shall be used
and the person using the earth rods shall keep safe
distance from earthing wires.
•8.Examine earth rods and every safety
appliance before using
•9.No person shall be allowed work if he is under
the influence of alcoholic drinks under inebriated
condition.

17. INDIAN ELECTRICITY RULES 1956
Rule32Anindicationofapermanent
natureshallbeprovidedbythe
owneroftheearthneutralconductor
toenablesuchconductortobe
distinguishedfromanylive
conductor.

18. INDIAN ELECTRICITY RULES 1956
Rule33Earthedterminalon
consumer’spremises.
Theconsumershalltakeall
reasonableprecautionstoprevent
mechanicaldamagetotheearthed
terminalanditsleadbelongingto
thesupplier.

19. INDIAN ELECTRICITY RULES 1956
Rule34Accessibilityofbare
conductorswherebareconductors
areusedinabuilding
Theownerofsuchconductorsshall
*Ensurethattheyareinaccessible
*Provideinreadilyaccessibility
positionswitchesforrenderingthem
deadwhenevernecessary.

20. INDIAN ELECTRICITY RULES 1956
Rule35DangerNotices
Theownerofeverymedium,highandextrahigh
voltageinstallationshallaffixpermanentlyaDanger
NoticeinHindiorEnglishandthelocallanguageof
thedistrictwithasignofskullandbones(designas
perISSNo.2551)on
a.Everymotor,generator,transformerandother
electricalplantandequipmenttogetherwith
apparatususedforcontrollingorregulatingthe
same.
b.Allsupportsofhighandextrahighvoltage
overheadlineswhichcanbeeasilyclimbedupon
withouttheaidofladderorspecialapparatus.

21. INDIAN ELECTRICITY RULES 1956
Rule36
1.HandlingofelectricsupplylinesandapparatusBeforeany
conductororapparatusishandledadequateprecautionshallbe
takenbyearthingorothersuitablemeanstodischarge.
Everypersonwhoisworkingonanelectricsupplylineor
apparatusorbothshallbeprovidedwithtoolsanddevicessuch
asgloves,rubbershoes,safetybelts,ladders,earthingdevices,
helmetsforprotectionhimfrommechanicalorelectricalinjury.
Suchtoolsanddevicesshallalwaysbemaintainedinsoundand
efficientworkingcondition.
2.Nopersonshallworkonanyliveelectricsupplylineor
apparatusandnopersonshallassistsuchpersononsuchwork,
unlessheisauthorisedinthatbehalfandtakesthesafety
measuresapprovedbytheInspector.

22. INDIAN ELECTRICITY RULES 1956
Rule37supplytovehicles,cranes,etc.
Everypersonowningavehicle,
travelingcraneortheliketowhichis
energysuppliedfromanexternal
sourceshallensurethatitisefficiently
controlledbyasuitableswitch
enablingallvoltagetobecutoffinone
operationandtheownershallensure
railsifusedareelectricallycontinuous
andearthed.

23. INDIAN ELECTRICITY RULES 1956
Rule38cablesforportableortransportable
apparatus
1.Flexiblecablesshallnotbeusedforportable
ortransportablemotors,generators,
transformers,electricdrills,electricsprays,
weldingsets,unlesstheyareheavilyinsulated
andadequatelyprotected.
2.Thecableshallbethreecoretypeandfour
coretypeforportableandtransportable
apparatusworkingonsinglephaseandthree
phasesupplyrespectivelyandwiremeantfor
groundconnectionshallbeeasilyidentifiable.

24. INDIAN ELECTRICITY RULES 1956
Rule42Accidentalcharge
Theownersofallcircuitsandapparatus
shallsoarrangethemthatthereshallbeno
dangerofanypartthereofbecoming
accidentallychargedtoanyvoltagebeyond
thelimitsofvoltageforwhichtheyare
intended
WhenACandDCcircuitsareinstalledon
thesamesupporttheyshallbesoarranged
andprotectedthattheyshallnotcomeinto
contactwitheachotherwhenlive.

25. INDIAN ELECTRICITY RULES 1956
Rule43Provisionsapplicabletoprotectiveequipment.
1.Firebucketsfilledwithcleandrysandreadyfor
immediateuseforextinguishingfireinadditionto
fireextinguishers(inallgeneratingstation,sub
stationandswitchingstation).
2.Thefireextinguishersshallbetestedforsatisfactory
operationatleastonceinayearandrecordofsuch
testsshallbemaintained.
3.Firstaidboxesorcupboardsmarkedandequipped
withsuchcontentsastheStateGovernmentmay
specifyshallbeprovidedandmaintainedinevery
generatingstation,substationandswitchingstation
soastobereadilyaccessibleduringallworking
hours.

26. INDIAN ELECTRICITY RULES 1956
Rule44Instructionsforrestorationof
personssufferingfromelectricshock.
InstructionsinEnglishorHindiand
locallanguagefortherestorationof
personssufferingfromelectricshock.

27. INDIAN ELECTRICITY RULES 1956
Rule44AIntimationofAccident
Ifanyaccidentoccursinconnectionwith
thegeneration,transmission,supplyoruse
ofenergyinorinconnectionwithanypart
oftheelectricsupplylinesorotherworksof
anypersonandtheaccidentresultsisoris
likelytohaveresultedislossofhumanor
animal,suchpersonoranyauthorised
personoftheelectricityboardnotbelowthe
rankofaJ.Eorequivalentshallsenda
telegraphicreporttoInspectorwithin24
hours.

28. INDIAN ELECTRICITY RULES 1956
Rule46APeriodicalInspectionand
testingofconsumers’installation
Whereaninstallationisalready
connectedtothesupplysystemofthe
supplier,everysuchinstallationshallbe
periodicallyinspectedandtestedat
intervalsnotexceedingfiveyearseither
bytheInspectororbythesupplier,in
thecaseofinstallationinmines,oilfields
andrailwaysbytheCentral
Government.

29. INDIAN ELECTRICITY RULES 1956
ChapterV–Generalconditionrelatingtosupply
anduseofenergy
Rule48Precautionsagainstleakagebefore
connection
Thesuppliershallnotconnectsupplyunlessheis
reasonablysatisfiedthattheconnectionwillnotatany
timecausealeakagefromthatinstallationorapparatus
ofamagnitudedetrimentaltosafety.
Compliancewiththisruleshallbecheckedby
measuringtheinsulatingresistanceasprovidedbelow:
HighvoltageequipmentsshallhavetheIRvalueas
stipulatedintherelevantIndianStandard.

30. INDIAN ELECTRICITY RULES 1956
Rule50supplyanduseofenergy
Thefollowingcontrolsofrequisitecapacityto
carryandbreakthecurrentafterthepointof
commencementofsupplyasdefinedinRule
58.
1.AlinkedswitchwithfuseoraCBforlowand
mediumvoltconsumers.
2.CBforEHVconsumer

31. INDIAN ELECTRICITY RULES 1956
3.Thesupplyofenergytoeachmotororagroup
ofmotorsorotherapparatusmeantfor
operatingoneparticularmachineincontrolled
byasuitablelinkedswitchoraCBoran
emergencytrippingdeviceplacedinsucha
positionastocutoffsupplybytheperson
incharge.
5.Adequateprecautionsshallbetakentoensure
thatnolivepartsaresoexposedastocause
danger.

32. INDIAN ELECTRICITY RULES 1956
Rule54Declaredvoltageofsupplyto
consumer.
Thevariationshallnotvary
1.Lowandmediumvoltagebymorethan
6%
2.Highvoltagemorethan6%onhigher
side,9%onlowerside
3.EHV,10%onhighersideand12.5%on
lowerside.

33. INDIAN ELECTRICITY RULES 1956
Rule55Declaredfrequency
Asuppliershallnotpermitthe
frequencyofanalternating
currentsupplytovaryfrom
thedeclaredfrequencyby
morethan3%.

34. INDIAN ELECTRICITY RULES 1956
Chapter–VIElectricsupplyline,systemsandapparatus
forlowandmediumvoltage.
Rule61connectingwithearth
Thefollowingprovisionsshallapplytotheconnectionwith
earthofsystems
1.Neutralconductorofa3Ø4wire
2.Middleconductorofa2Ø3wiresystem
shallbeearthedbynotlessthantwoseparateanddistant
connectionswithaminimumoftwodifferentearth
electrode.Theearthelectrodesmaybeinterconnected
toreduceearthresistance
1.Allearthingsystemsbelongingtothesuppliershallbe
testedforresistanceondrydayduringdryseasonnot
lessthanonceeverytwoyears.

35. INDIAN ELECTRICITY RULES 1956
Rule61Earthleakageprotectivedevices.
Thesupplyofenergytoeveryelectrical
installationshallbecontrolledbyan
earthleakageprotectivedeviceasto
disconnectthesupplyinstantlyonthe
occurrenceofearthfaultorleakageof
current(>5KWloads).

36. INDIAN ELECTRICITY RULES 1956
ChapterVIIElectricsupplyline,
systemapparatusforhighand
extrahighvoltage

37. INDIAN ELECTRICITY RULES 1956
Rule64AAdditionalprovisionsforuseofenergyat
highandextrahighvoltage
1.Interlocks
a.IsolatorandCircuitBreaker
b.Isolatorandearthswitch
2.Protection:Allthesystemandcircuitsshallbeso
protectedastoautomaticallydisconnectthesupply
underabnormalconditions.
•Overcurrent,Earthfaultformachines
•Bucchholzrelay1000KVAandaboveTfrs
•Differentialprotection10MVAandaboveTfrs,
1000KVAandabovegeneratorswithdifferential

38. INDIAN ELECTRICITY RULES 1956
Rule67connectionwithearth
Allnon-currentcarryingmetal
partsassociatedwithHV/EHV
installationsshallbeeffectively
earthedtoagroundingsystem
ormat.

39. INDIAN ELECTRICITY RULES 1956
ChapterVIII-OVERHEAD LINES
Rule77Clearanceabovegroundofthe
lowestconductor
1.Overheadlineacrossthestreet
a.Lowandmediumvoltage5.8mtr.
b.Highvoltage6.1mtr
2.Alongthestreet
a.Lowandmediumvoltage5.5mtr.
b.Highvoltage5.8mtr

40. INDIAN ELECTRICITY RULES 1956
Rule78clearancefrombuilding
Lowvoltage,mediumvoltage,
aboveroof2.5mtrs.
Horizontalclearance1.2mtrs.
Highvoltageupto33KV
aboveroof3.7mtrs.
Extrahighvoltage
aboveroof3.7mtr+0.3mtrforevery
additionof33KV.

41. CLEARANCE BETWEEN POWER AND
TELECOM LINES
Minimum clearances between, lines of various voltages
LT lines (400 / 230 V) -4 feet -1.22 meter
11 kV lines -6 feet -1.83 meter
33 / 66 kV lines -8 feet -2.44 meter
132 kV lines -10 feet -3.05 meter
220 kV lines -15 feet 4.88 meter
Note:-
Guard rings are to be provided at crossings of telecom lines with
power lines upto 33 kV

42. INDIAN ELECTRICITY RULES 1956
Rule88Guarding
Whenoverheadlinecrossesorisin
proximitytoanotheroverheadline,
guardingarrangementsshallbe
providedsoastoguardagainstthe
possibilityoftheircomingintocontact
witheachother.
Everyguardwireshallbeactual
breakingstrengthofnotlessthan635
kg.

43. CASE STUDIES
01. Water tap giving shock
•Oneendofheater(neutral)isconnectedtothe
pipeasreturnpath.Pipeisnotearthed.Say:
1000Wheater,200Volts,Rx10Ohm(Pipeline)
•voltageproducedacrossthepipe50V.
Remedy :heater must be connected to neutral
and pipe should be earthed.

44. 02.Shockfromwetwall
•Theinsulationofphaselinesfounddamaged
andsurroundedbywaterspumesormoisture.
Thisledtoelectricalleakageduetowallwet.
Remedy:Damagedwiretobereplacedby
healthyones.

45. 03.Fangivingshock
•Theflexiblewiresupplyingelectricitytoatable
faninthehousehadcracked.Thewirewas
touchingthebodyofthefan.
Remedy :Proper inspection of cable and
adequately insulate the wire or replace the wire.

46. 04.Fireinmulti-storiedBuildings
•Inamulti-storiedofficebuilding,paperfileswere
stockedwhichweretouchingthewiresin
junction-box.Somelocalheatadequatetoburn
onepaperwasgeneratedwhichresultedinfire
whichburntthewholebuilding.
Remedy:Properstockingoftheinflammable
materialawayfromthefire/heat.
•Fire detecting system should have been checked
from time to time.

47. 05. Shock from motor pump
•No bush was in the terminal box
•with the result that wires were touching the edge
of the terminal box hole
•after some time the insulation of wires were got
damaged and bare conductor came in touch with
the metallic cover of the box
•an operator accidentally touched the motor got
fatal electric shock
•no earthing was provided for the motor
remedy
•proper earthing of the motor could have saved
the life as earthing could have isolatedthe motor
from supply in case of fault.

48. 6 steps safety methods
1. Think -Be aware(thinking of personal, job oriented
problems while working-ticket to an accident)
2. Understand the procedure(thoroughly familiar with all
safety procedures, knowledge of required steps and
reasons)
3. Follow the procedure
4. Use appropriate safety equipment(nothing sadder
than an accident report which explains that the dead
or injured worker was not wearing safety equipment.
5. Ask if you are unsure and do not assume(ignorance
kills and injuries many people, encourage to ask
questions and should be answered by a qualified
person)
6. Do not answer if you do not know