Huawei NetEngine 8000 F User Manual

Item Requirements
Collective
ground cable
● Use a ground ring or ground bar for the collective ground
cable.
● Do not use aluminum cables as ground cables. Adopt
measures to prevent electrication corrosion when
connecting dierent metal parts together.
● Use a copper busbar as the collective ground cable with a
cross-sectional area of no less than 120 mm
2
(0.19 in.
2
), or
use the galvanized
at steel of the same resistance. Insulate
the collective ground cable from the reinforcing steel bars
of the building.
Grounding
lead-in
The grounding lead-in should be a maximum of 30 m (98.42
ft) long. Use the galvanized at steel with cross-sectional area
of 40 mm x 4 mm (1.58 in. x 0.158 in.) or 50 mm x 5 mm
(1.97 in. x 0.197 in.).
4.2.12.1.2 Requirements for Power Supply
Requirements for AC Power Supply
An AC power supply system consists of power mains, uninterruptible power
supplies (UPSs), and self-supplied electric generators, and should use a centralized
power supply mode. In addition to meeting the requirements of the server load,
the AC power supply must have a simple connection line, safe operation,
exible
scheduling, and easy maintenance.
The low-voltage power supply should be 3-phase, 5-wire mode or monophase 3-
wire mode. This AC power supply should be 110 V/220 V, with a frequency of 50
Hz.
The UPS should supply the same power and operate at the same phase as the
power mains. The switching time between the UPS and mains should be less than
10 ms; otherwise, the networking devices will reboot or reset.
For power distribution capacity in the equipment room, both the working current
and fault current of the devices should be considered. Ensure that independent AC
power supplies protect independent devices.
Congure the current-carrying
capacity of the protection switch of the equipment room for more than that of the
devices.
Table 4-67 lists the voltage range of the AC power supply for the devices.
Table 4-67 Voltage range of AC power supply
Item
Requirements
AC power capacity to
support the devices
-10% to +5% of the rated voltage
HUAWEI NetEngine 8000 F
Hardware Guide 4 Hardware Installation and Parts Replacement
Issue 05 (2023-03-31) Copyright © Huawei Technologies Co., Ltd. 648

Huawei NetEngine 8000 F Specifications

General

Brand	Huawei
Model	NetEngine 8000 F
Category	Network Router
Language	English