Figure A-1
Lightning & Surge Protection
A.2 Grounding for Cement Pole/Wall Installation
When the speed dome is installed in environment where is relatively insulating to the earth, e.g.,
cement pole or cement wall, then the grounded method should be taken. Refer to the following
figure.
Figure A-2
Grounding in Cement Pole/Wall Installation
Because the signal transmission media of fiber optical speed dome and network speed dome are
isolated from the control center, they must be grounded locally to protect dome against damages.
IPC6512-Z30&6522-Z30&6622-Z30
Installation Guide
A Lightning and Surge Protection
Issue 02 (2014-12-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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