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S-6
disconnecting the high voltage drive source, shorting out
appropriate leads, taping down switches, and anything else
you can think of to protect yourself.
w. When troubleshooting a unit, assume that the switches and
components are defective. You may shut off the high-
voltage switch in some systems, but if the switch is defective,
you would still have the high voltage on. Returned units are
potential booby traps.
x. Make sure that your workstation is stable. Flimsy work
surfaces or supports for the equipment or the test
instruments represent a real threat. Do NOT use a setup that
you know is unstable and/or dangerous.
y. Use the 30-second rule. Wait 30 seconds after you have shut
off the equipment before you work on a unit. Part of the
reason for the 30-second rule is that some of the dielectrics
(insulators) used for high voltage circuits can store a charge.
While the amount of charge stored is a function of the size of
the object, the 30-second rule provides an additional margin
of safety.
z. Maintain a healthy respect for any kind of live circuits.
Complacency can hurt or kill you. Your continued
wariness is your best insurance against injury or death.
S A F E T Y
Installation and Operation Manual
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