FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 5-1 Remove the protective 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 5-2 shows how to
detect the voltages.
Figure 5-2 Detecting the voltages
Step 4 Hold the faulty SPD and pull it out.
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