TP48200E-H12C1 (Nepal, Ncell)
User Manual
4 Maintenance
Issue 01 (2015-05-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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Step 2
Hold down the faulty AC SPD and pull it out, as shown in Figure 4-15.
Step 3
Install the new AC SPD, as shown in Figure 4-9.
Figure 4-9
Replacing an AC SPD
Step 4
Disconnect the ground cable for the ESD wrist strap, and take off the ESD wrist strap and
ESD gloves.
----End
Follow-up Procedure
Check that the alarm for the AC SPD is cleared.
4.3.6 Replacing a Circuit Breaker
Prerequisites
Before replacing an AC circuit breaker, switch off the input circuit breaker on the upper-level
device.
You have obtained the cabinet door key, insulation tapes, and tools.
The new circuit breaker is intact and has the same specifications as the original one.
Procedure
Step 1
Unscrew and remove the cover before the circuit breaker.
Step 2
Switch off the circuit breaker that is to be replaced.
Step 3
Record positions where the cables and signal cable terminals connect to the circuit breaker.