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5 24 Month (Two Year)
Inspection
In addition to the annual inspection, perform
the following recommended inspection and
maintenance at 24 month (two year)
intervals, or sooner, if required by local
conditions or regulations.
1. Clean the circuit breaker stationary
primary contacts. Refer to Circuit
Breaker Installation Operation and
Maintenance Manual 1VAL050502-MB
for detailed instructions.
2. Inspect secondary wiring bundles for
signs of discoloration because of heat or
chafing. Check for cracked or embrittled
insulation. Replace wire whenever
unsure.
3. Inspect primary insulation system for
accumulated contamination. Clean
insulation with a dry cloth, dry-air,
vacuum, or if necessary with an OSHA
approved solvent.
4. Check the calibration of protective
relays.
5. Follow the recommendations of any
individual device instructions furnished
for maintenance of the device.
6. Contact ABB Service if any abnormality
is experienced.
6 Renewal Parts
Order factory original replacement parts
from ABB Inc., Lake Mary, Florida 32746.
Specify quantity, part numbers, description,
and nameplate data of the device requiring
the replacement parts.
For replacement parts, call toll free: 1-
800-929-SWGR.
Outside of USA call: 1-407-732-2000
DANGER
Turn off power ahead of the
switchgear before performing any
inspection or
Check incoming line terminals to
verify that the equipment is de-
energized and grounded. Check out-
going terminals to ensure that no
back-feed condition exists.
Courtesy of NationalSwitchgear.com
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