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 TM 5-683/NAVFAC MO-116/AFJMAN 32-1083
Table 9-1. Lamp Trouble-Shooting Guide-Continued.
Tighten in socket
Lamp loose
Lamp not burning
Secure terminals.
Loose or broken
Repair wiring
connections
Replace with new lamp
Lamp burned out
Match lamp rating to
Low voltage
Lamp burns dimly
line voltage or
increase line voltage
Match lamp rating to
Short lamp life
High voltage
line voltage.
Improve voltage
regulation and avoid
surges
Replace lamp. Be sure
Lamp failure due to
water does not drip on
mechanical shock
bulb. Use rough
service lamps if
required
Replace with lamp of
Incorrect lamp
size for which
luminaire is rated
Use vibration or rough
Excessive vibration
service lamps
Lamp breakage
Use enclosed vapor-
Water contacts bulb
tight luminaire if
exposed to moisture
Use correct lamp size
Bulb touches luminaire
9-9
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