Huawei NE05E Hardware Manual page 445

HUAWEI NE05E,NE08E
Hardware Guide
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Grounding Specifications for the Building
This section introduces the grounding specifications for the building.
Grounding specifications for the building, as shown in
Table 4-17 Grounding specifications for the building
No.
1
Equipment Grounding Specifications
This section introduces the equipment grounding specifications.
Equipment grounding specifications, as shown in
Table 4-18 Equipment grounding specifications
No.
1
2
Issue 05 (2023-03-31)
Description
Cable racks, equipment frames and enclosures, metallic air ducts and
doors and windows in the equipment room should be grounded.
All the metallic equipment units that are normally neutral should be
grounded.
The ground cables should firmly contact with the ground bar in the
equipment.
Connection to the already grounded equipment for grounding purpose is
not allowed.
Description
Usually, the earth resistance of the telecommunication site where the
base station equipment is located is recommended to be less than 10
ohm. It also should comply with the relative stipulation of the country.
Description
All the network telecommunications equipment including mobile base
station, transmission equipment, switching equipment and office power
should be grounded. All the protection grounds (PGNDs) of such
equipment should be finally bonded to a general ground bar. The PGNDs
in an equipment room should be bonded to the general ground bar in the
same equipment room.
The PGND of the equipment should be connected to the nearby ground
bar (user-supplied). Copper-core conducting cable with green-yellow
plastic insulation cover should be used. The cross-sectional area of the
conductive cable is required to be 25 mm
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4 Hardware Installation and Parts Replacement
Table
Table 4-18.
2
or wider.
4-17.
437