Parts Replacement; Parts Replacement For The Icc Cabinet; Replacing An Ac Spd - Huawei PowerCube 5000 User Manual

PowerCube 5000
User Manual (SmartLi 100Ah)
This chapter describes the methods and precautions for replacing common parts and
components such as a circuit breaker, fuse, and SPD.

9.1 Parts Replacement for the ICC Cabinet

9.1.1 Replacing an AC SPD

An AC SPD needs to be replaced if its indication window turns from green to red, indicating
that the SPD has failed.
Prerequisites
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Context
An AC SPD protects all circuits following it by suppressing power surges.
Procedure
Step 1 Wear the ESD wrist strap or ESD gloves.
Issue 02 (2020-03-17)
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Disconnect the AC power supply before replacing the AC input circuit breaker, SPD, or AC
contactor.
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Disconnect the power supply to ensure that boards and cabinets are free from high voltage hazards
before replacing AC-powered boards.
 Attach labels to the ports before replacing a board that has complex ports for ease of port location.
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After disconnecting the module input and output, wait for 5 minutes until the DC bus capacitor
voltage passes through the bleeder resistor and drops to below the standard safety voltage (60 V DC
or 25 V AC).
An ESD wrist strap or ESD gloves, flat-head screwdriver, cable cutter, cable ties, ESD
box or bag, and cabinet door key are available.
You have confirmed the model of the AC SPD to be replaced and prepared a replacement
AC SPD.
You are authorized to enter the site with the key.
Copyright © Huawei Technologies Co., Ltd.
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Parts Replacement

9 Parts Replacement
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