PDU8000 Modular Precision PDC V2.0
User Manual
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8.4 Parts Replacement
This document describes only the replacement method for certain components. If a faulty
component to be replaced is not covered in this document, contact Huawei technical support.
8.4.1 Replacing an SPD Module
Prerequisites
Do not replace an SPD module during a thunderstorm.
Tools: electrical tester pen, key to the PDC cabinet door, Phillips screwdriver, flat-head
screwdriver
Materials: new SPD module
Procedure
Step 1 Remove the protective panel of the SPD.
Take appropriate insulation measures to avoid electric shocks when removing the panel.
Step 2 Switch off the SPD circuit breaker.
Step 3 Detect the L1, L2, L3, and N voltages to the PE using an electrical tester pen, and verify that
the faulty SPD has no voltage before replacing the faulty SPD. Figure 8-2 shows how to
detect the voltages.
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