Electrical_Safety_Presentation.Easy and simple way of learning of electrical safety and for all engineering and non engineering trades

Easy and simple way of learning of electrical safety and for all engineering and non engineering trades

1. Electrical Safety Summary from PDF

2. Electrical Safety Electrical Safety

3. Electrical Safety Electrical Shock Hazards (बिजली के झटक े के खतरे) The major hazards associated with electricity are electrical shock, fire and arc flash . Electrical shock occurs when the body becomes part of the electric circuit, either when an individual comes in contact with both wires of an electrical circuit, one wire of an energized circuit and the ground, or a

4. Electrical Safety metallic part that has become energized by contact with an electrical conductor .

5. Electrical Safety The severity and effects of an electrical shock depend on a number of factors, such as the pathway through the body, the amount of current, the length of time of the exposure, and whether the skin is wet or dry. Water is a great conductor of electricity, allowing current to flow more easily in wet conditions and through wet skin.

6. Electrical Safety बिजली के झटक े की गंभीरता और प्रभाव कई कारक ं पर बिभभर करता है, जैसे शरीर के माध्यम से मागभ, वतभमाि की मात्रा, एक्सप जर की अवबि , और त्वचा गीली या सूखी है या िहीं। पािी बिजली का एक िडा संवाहक है, बजससे गीली पररस्थिबतय ं में और गीली त्वचा के माध्यम से िारा अबिक आसािी से प्रवाबहत ह ती है।

7. Electrical Safety The effect of the shock may range from a slight tingle to severe burns to cardiac arrest . झटक े का प्रभाव मामूली झुिझुिी से लेकर गंभीर जलि से लेकर काबडभयक अरेस्ट तक ह सकता है।

8. Electrical Safety The hazardous of electrical shock are the following : Loose of motion control Respiratory arrest Pain Physical fatigue Ventricular fibrillation

9. Electrical Safety Cardiac arrest Burns

10. Electrical Safety The effects of electrical current through the human body vary according to : The voltage The time the current flows The value of the current The frequency of the network The pathway of the current

11. Electrical Safety The ability of the person to react

12. Electrical Safety The effects of electrical current through the human body vary according to : The voltage The time the current flows The value of the current The frequency of the network The pathway of the current

13. Electrical Safety The ability of the person to react

14. Electrical Safety Current Range And Its Effects on human body: -

15. Electrical Safety AC or DC, Which one is dangerous ? Keep in mind that both the AC and DC voltages and Currents are dangerous & hazardous . But AC with 50 or 60Hz frequency is more dangerous than the same voltage of level for DC.

16. Electrical Safety AC and DC Shock Comparison & its effect on human body: -

17. Electrical Safety The value of the current through the body depends of the resistance of the skin. This resistance depends of several factors such as : Humid or wet skin Thickness of the skin at the contact point Psychological condition Weight

18. Electrical Safety Sex Age

19. Electrical Safety The pathway of the current through the human body is unpredictable, and pathways through the heart are the most dangerous .

20. Electrical Safety When an electrical current flows through the physiological tissues there is an interference with the electrical processes of the human body, namely with nerves, muscles and the heart . The tissues are also subjected to heating and electrochemical reactions that provoke the deterioration of the tissues .

21. Electrical Safety Some of these injuries can cause death, namely respiratory arrest, ventricular fibrillation, cardiac arrest and burns .

22. Electrical Safety Electrical Shock Hazards & Effects on Human Body – Current & Resistance Chart