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 ELECTRICAL
Instruments-Continued
improperly marked and identified
incorrect type and range for application
no manufacturers' instructions for servicing
poor physical condition of instrument cases, portable cases, handles
nameplate, leads, calibrated leads, shunts, multipliers
loose electrical connections
dirty or corroded contact surfaces
inadequate, poorly arranged, improperly insulated wire, cable, and
leads
broken glass
pointer friction
warped or dirty scale
bent pointers
missing parts
moving elements not locked when instruments provided with
locking devices are not in use
inkwell not clean and dry when portable type recording instruments
are in storage
n Calibration:
Not serviced, calibrated, or tested at appropriate intervals to
accepted standards of accuracy for particular instrument
records of tests not available
n Watt-Hour Meters:
nonoperative voltage (power-on) indicating lamps
Outdoor Service Meters
poor physical condition
loose weather seals
moisture or dirt in enclosure
corrosion
loose connections
missing parts
7-29
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