Replacing A Circuit Breaker - Huawei TP48200A-HT19C4-1 User Manual

TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
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User Manual
Figure 4-5 Replacing an AC SPD
Step 4 Disconnect the ground cable for the ESD wrist strap, and remove the ESD wrist strap and
gloves.
----End
Follow-up Procedure
Check that the alarm for the AC SPD is cleared.

4.4.4 Replacing a Circuit Breaker

Prerequisites
Before replacing an AC circuit breaker, switch off the upstream input circuit breaker.
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Procedure
Step 1 Switch off the circuit breaker that is to be replaced.
Step 2 Record the positions where the output cable and signal cable terminals connect to the circuit
breaker.
Step 3 Loosen the screw that secures the upper port of the circuit breaker using a Phillips screwdriver,
and remove the output power cable and signal cable terminals. Wrap the cable and terminals
using insulation tape.
Step 4 Loosen the screw that secures the lower port of the circuit breaker using a Phillips screwdriver,
and open the buckle at the base of the circuit breaker using an insulated flat-head screwdriver.
Issue 03 (2019-11-15)
The cabinet door key, insulation tape, and required tools are available.
The new circuit breaker is intact and has the same specifications as the circuit breaker to
be replaced.
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