Table 4-38 Specications for laying out ground cables
No. Description
1 The grounding wire should not run parallel to or twist around the signal
cable.
2 Bury ground underground or arrange them indoors. Do not route ground
cables overhead.
3 Do not connect two cables together to extend the PGND cable, or add
any switches or fuses.
4 The PGND cable should be an alternating yellow and green plastic
insulated one with a copper core.
5 The neutral line of the AC power cable cannot be connected to the
protective ground of transmission and communication equipment in the
equipment room.
6 A PGND cable should be as short as possible, with a length of no more
than 45 m (147.64 ft).
4.1.12.4 Engineering Labels for Cables
An engineering label serves as an
identier for on-site installation and
maintenance after the installation. Labels on the cables facilitate correct and
orderly connection of cables, and easy maintenance after installation.
Engineering labels are specialized for power cables and signal cables:
● Signal cables include network cables, optical bers, and user cables.
● Power cables include the AC power cables and DC power cables.
Fill in labels according to specied requirements to keep consistency of labels in the
equipment room. Make a relevant statement in the self-check report.
4.1.12.4.1 Introduction to Labels
Label Materials
Features:
● Thickness: 0.09 mm (0.004 in.)
● Color: chalk white
● Material: polyester (PET)
● Ambient temperature: -29°C (-20.2°F) to +149°C (300.2°F)
● Printed by a laser printer and written with a marker
● Pass UL and CSA authentication
HUAWEI NetEngine 8000 F
Hardware Guide 4 Hardware Installation and Parts Replacement
Issue 05 (2023-03-31) Copyright © Huawei Technologies Co., Ltd. 503
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