STS-6000K-H1 Smart Transformer Station (Vietnam,
Duc Long Gai Lai)
Installation Guide
7 Connecting Cables
Issue 02 (2020-02-21)
Copyright © Huawei Technologies Co., Ltd.
41
7
Connecting Cables
Precautions
Before connecting cables, ensure that the upstream and downstream switches of the STS are
turned off, and that the STS is not energized. Otherwise, the high voltage of the STS may
result in electric shocks.
The device damage caused by incorrect cable connections is beyond the warranty scope.
Only qualified electricians can perform operations about electrical connections.
Wear proper PPE at all time when connecting cables.
Before connecting cables to ports, leave enough slack to reduce the tension on the cables
and prevent poor cable connection.
The cable colors shown in the electrical connection diagrams provided in this chapter are for reference
only. Select cables in accordance with local cable specifications (green-and-yellow cables are only used
for protective earthing).
Wiring Requirements
Cables should be arranged neatly and the cable insulation layer should be intact.
The cable connectors prepared onsite must be secure, reliable, neat, and comply with
relevant regulations.
Power cables, ground cables, and signal cables should be securely and reliably connected
in conformity with wiring regulations.
Power cables should be routed according to the requirements for routing strong-current
and weak-current cables and in compliance with the cable routing plan. Power cables and
signal cables should be bound separately.
Both ends of cables should be marked with a label that is easy to understand and faces
outward.
