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Electrical
Systems
Manufacturer Requirements
FEDERAL LAW
183.445 - Conductors: Protection
(b) Each ungrounded terminal or stud
that is continuously energized must meet 183.455 or
must have a boot, nipple, cap, cover, or shield that
prevents accidental short-circuiting at the terminals
or studs. |
Any continuously energized terminal or stud
that is not protected by a fuse or circuit breaker, as required
by section 183.455, must be protected from accidental short
circuiting. Continuously energized means directly connected
to a power source without any switches or solenoids between
the source and the terminal. Protection against accidental
short circuiting must be by means of an insulated boot, nipple,
or cap or by a cover or shield. The test to determine if the
protection is effective is whether or not the terminal or
stud can be touched by a 3/4 inch diameter ball. If it cannot
be touched, then the protection is adequate.
TO COMPLY WITH THE LAW
Is each continuously energized terminal
or stud protected by either:
- overcurrent protection, as required
in 183.455, or
- an insulated boot, nipple, cap, cover
or shield?
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FIGURE
22 - Terminal Protection
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