14
Preparing to Repair or Inspect the Vehicle (Disconnecting the Vehicle’s High-voltage Bus)
Like gasoline-powered vehicles, EVs require repairs and inspections.
However, unlike gasoline-powered vehicles, EVs incorporate high-voltage
sources such as traction batteries and inverters, making it essential to
ensure worker safety by reliably disconnecting high-voltage components
prior to performing repair and inspection work.
To safely repair and inspect an EV, you must perform zero-voltage
measurement (p. 18); equipotential bonding testing, for example to verify
that locations where electricity could ow, such as the vehicle’s chassis, are
at the same potential (p. 24); and insulation resistance testing to verify that
there are no insulation defects (p. 27).
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