Surge Protection And Grounding System; Surge Protection Solution; Grounding Solution - Huawei FusionModule500 User Manual

FusionModule500 Smart Mini Data Center
User Manual
Table 3-41 LAN switch
Model
S5331-H24P4XC
S5731-H24P4XC

3.5 Surge Protection and Grounding System

3.5.1 Surge Protection Solution

The Smart Module is mainly used for building equipment rooms. Its power
distribution system is a subsystem of the building power distribution system. Class
I surge protective devices (SPDs) of the power system are provided by the general
low-voltage power distribution room or cabinet of the building.

3.5.2 Grounding Solution

Cabinet Potential Grounding
A general ground bar is installed in the cabinet. Ground terminals of the cabinet
are connected to the ground bar using a ground cable with a minimum cross-
sectional area of 16 mm
Cabinet Grounding
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Issue 02 (2020-12-25)
NO TE
The AC input power is from the upstream power distribution system. The cross-sectional
areas of ground cables are determined according to IEC 60364-5-54.
Metal components and parts of cabinets are properly connected. A structural
connection area is protected and applied with antioxidants. An area protected
with painting should ensure proper metal surface contact for two connected
components. The DC resistance is within 0.1 ohm between any two connected
metal components. Use a ground cable to connect two metal components
that cannot be directly connected, such as cabinets and cabinet doors. A cable
for connecting these two metal components has a minimum cross-sectional
2
area of 6 mm .
A ground bar or general ground point is provided in the cabinet for
equipment grounding. The ground bar does not need to be insulated.
A ground terminal is greater than or equal to M8 in dimensions. A yellow
ground label is attached close to the general ground terminal for
cabinets.
Copyright © Huawei Technologies Co., Ltd.
Maximum Number of Ports
Twenty-four 10/100/1000BASE-T Ethernet ports, four
10GE SFP+ ports
Twenty-four 10/100/1000BASE-T Ethernet ports, four
10GE SFP+ ports
2
.
3 System Architecture
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