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.
51
Figure 7-10
Securing the support for the lightning arrester
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7.5 Connecting an AC Output Power Cable
The door of the power cable room of the ring main unit is interlocked with the grounding
switch. The door can be opened only when the grounding switch is turned on.
When connecting the incoming cables, ensure that the grounding switch of the upstream
outgoing cable cabinet is turned on. After connecting cables, ensure that the grounding
switch of cabinet G1 in the ring main unit of the STS is turned off.
Before turning on the grounding switch of cabinet G1, turn off the switch in the upstream
cabinet G3.
If multiple STSs are cascaded, cabinet G3 of the last STS should be installed with
insulation plugs by the Engineering, Procurement, Construction (EPC) party.
Route cables to corresponding positions according to the design and label the cables.
If the foundation is too high to connect the cables, the customer needs to add a
construction platform to facilitate cable connections.
Procedure
Step 1
Cut a cable inlet according to the cross-sectional area of the cable.
Step 2
Prepare terminals and secure them by referring to the installation guide to the split-type
shielded cable connector.