EVT – Lecture Summary & Study Notes
What type of clothing is needed to work on electric vehicles? - correct answer
✔✔Class 0 or Arc 2 (This is flame retardant clothing)
What is considered high voltage and designated with orange cables? -
correct answer ✔✔Anything above 60V
At what amperage does risk of injury greatly increase? - correct answer
✔✔10mA
At what amperage does risk of death greatly increase? - correct answer
✔✔80mA
The body's resistance can be effected by what 7 factors? - correct answer
✔✔Touch voltage, the path that the electricity flows, the duration of
exposure, frequency of AC voltage, humidity of the skin, surface area, and
applied pressure.
What happens to blood when you're shocked? - correct answer ✔✔The
overload of electricity in the nerves can cause blood to instantly boil, clot,
and become toxic; this is called electrolysis and can lead to delayed injury
and death even in small amounts.
What rating must shoes be when working with high voltage? - correct answer
✔✔EH rated or ISO 20345: 2004.
Why do we wear face shields when working with high voltage? - correct
answer ✔✔To prevent any molten metal from touching the face in the event
of sparks. Must be Z87 rated
