6.4.2 Replacing Power Supply and Distribution System
Components
● Only qualied personnel can replace components of the power supply and
distribution system.
● Wear protective tools such as insulation gloves and shoes before replacing a
power supply and distribution component.
● Power
o the upper-level equipment before replacing a power supply and
distribution component.
● Use a multimeter and electrical tester pen to check whether the front and rear
ends of the component to be replaced are powered
o after the component is
powered o.
6.4.2.1 Replacing a Surge Protection Module
Prerequisites
● Do not replace a surge protection module during a thunderstorm.
● Before replacing a surge protection module, wear insulation gloves.
● Tools: insulation protective gloves, electroprobe
● Material: A new surge protection module of the same model is available and
functional.
Procedure
Step 1 Switch the SPD circuit breaker to OFF.
Step 2 Remove the protective panel from the SPD.
Figure 6-3 Removing the protective panel
FusionModule800 Smart Small Data Center
User Manual 6 O&M
Issue 01 (2021-02-05) Copyright © Huawei Technologies Co., Ltd. 401
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