TP482000B V300R002C03 Telecom Power
(TP482000B-N20B1, TP482000B-N20B2,
TP481200B-N20B1, and TP481200B-N20B2)
User Manual
7 Parts Replacement
Issue 07 (2020-04-10)
Copyright © Huawei Technologies Co., Ltd.
75
Do not replace an AC SPD during a thunderstorm.
Procedure
Step 1
Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD
gloves.
Step 2
Hold down the faulty AC SPD and pull it out, as shown in
Step 3
Install the new AC SPD, as shown in
Figure 7-23
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.
7.5 Replacing a Circuit Breaker
Prerequisites
Before replacing an AC circuit breaker, switch off the upstream input circuit breaker.
The cabinet door key, insulation tape, and required tools are available.