Double Dome PTZPZ9, Installation Manual

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Appendix 1 Lighting-proof, with Surge-protector
This product adopts air discharge lightning and TVS board-level
technology; can effectively prevent damage to equipment from 1500W
(below) instantaneous lightning strike, waves. However, make
necessary protective measures under the electrical safety for outdoor
installation:

Signal lines must keep at least 50 meters with high-voltage
transmission lines or high voltage cable;

Outdoor wiring must be selected along the roof down;

For the open area must be sealed by pipe buried wiring, and pipe
using point grounding, absolute prohibition of overhead wiring;

Strong thunderstorms area or areas of high-voltage sensor (such as
high-voltage substations), power must be taken to install additional
equipment and lightning rod and other lightning protection
measures;

Outdoor installations, lightning protection and grounding circuit
design must consider building lightning protection requirements,
and comply with the relevant national standards, industry
standards;

Equipotent grounding system must be. Grounding system must
meet the anti-jamming devices and electrical safety double
requirements, and may not be short-access or mixed access with
the strong zero grid line. When separate grounding systems,
anti-resistivity less than 4Ω, grounding wire cross-sectional area
must be not less than 25 mm ²;