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 ELECTRICAL
Fuses and Small Circuit Breakers (Under 600 Volts and 30 Amperes)-Continued
n Enclosures:
deterioration of enclosures or connecting conduit or cable due to
rust or corrosion
loose, corroded, or missing covers
n Connections (if visible without removing covers):
loose
corroded
inadequate
deteriorated insulation
n Capacity:
Check size of existing fuses or circuit breakers against system
engineering drawings. Report oversized fuses and circuit breakers
n Fuses:
overheating indicated by discoloration of brass or copper at contact
points
distortion
charring
deterioration of fiber cases of cartridge type cases
n Circuit Breakers:
distortion
charring
deterioration of molded portions of case
n Grounding:
loose corroded connections
deteriorated or abraded insulation
frayed or broken cables
7.2.10 General wiring: Check for:
n Broken conduit:
n Exposed wiring:
n Missing box and conduit covers missing:
7-24
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