Installing A Lightning Arrester For The Ring Main Unit - Huawei STS-6000K-H1 Installation Manual

STS-6000K-H1 Smart Transformer Station (Vietnam,
Duc Long Gai Lai)
Installation Guide

7.4 Installing a Lightning Arrester for the Ring Main Unit

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Install the lightning arrester in cabinet G2 of the ring main unit in the MV room.
Figure 7-7 Installation position of the lightning arrester
(1) Position of the lightning arrester
Step 1 Adjust the height of the support for the lightning arrester based on the height of the lightning
arrester.
Issue 02 (2020-02-21)
The lightning arrester of the ring main unit must be installed after the insulation test is
complete. Otherwise, the voltage during the insulation test will damage the lightning
arrester.
The installation of the lightning arrester has high requirements for the environment.
Therefore, the lightning arrester must be installed in a sunny, dust-free, and wind-free
environment.
During the installation, clean the insulation surface, insulation plug, and rear tee connector
surface of the lightning arrester using a clean cloth and apply silicone grease evenly.
The lightning arrester of the ring main unit is delivered with the cabinet. For details, see
the installation guide provided by the manufacturer.
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