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 Preventive Maintenance Checks and Services
Table 2-1.
Q - Quarterly
S - Semiannually
A - Annually
D - Daily W - Weekly M - Monthly
Items To Be
Interval
Item
Inspected/
Procedures
Q
D
W
No.
M
S
A
Serviced
ELECTRICAL SYSTEM - CONT
q
Power
(3) Notify watch standers and equipment operators that
56
Distribution
test of ABTs is being conducted and power will be
System
momentarily interrupted.
Automatic Bus
Transfer
(4) Ensure normal and alternate/emergency power
supplies are available.
(ABT)
Switching -
CONT
b.
Test Operation of ABT.
(1) Deenergize SSDG 1 and 2.
(2) Ensure electrical load transfers to emergency
supply.
(3) Energize normal power supply.
(4) Set Mode switch to MANUAL position.
(5) Manually transfer load to normal power.
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