EMS 1.12.3

EV Hazards: Electrical Hazards

Electrical Hazards NEXT High-voltage EV batteries can deliver powerful electric shocks if you accidentally
touch a live part of the system. Electric Shock Electrical Hazards Here’s what to do if someone gets shocked: • Stay safe first. Don’t touch the person if they’re still in contact
with the electrical source. Electric Shock NEXT • Stop the electricity. Turn off the power if you can. • Use a non-metal object, like a wooden broom handle, to push them
away from the electricity. • Call for help. Get emergency services on the way as quickly as possible
by calling 911. Electrical Hazards Arc flash is a dangerous event that happens when electricity jumps through the air
between two points. This can create intense heat, sparks, and even explosions.
For example, a welding arc uses only 25 volts to melt metal together. Imagine the
damage a 400-volt EV battery could do! Arc flashes can cause serious burns and e
ven set clothing on fire. If you’re wearing synthetic (man-made) fabrics, they can melt
into your skin. Arc Flash NEXT Electrical Hazards How to protect yourself from arc flash: Arc Flash • Always wear natural-fiber clothing, like cotton, when working near EVs. • Remove all metal items, like rings, watches, and belts, to avoid conducting electricity. • Use face protection and insulated gloves to shield yourself from sparks and heat. • People with metal implants, such as plates or screws in their bodies,
are safe because the skin acts as a barrier.
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