User Manual
1080p AHD 18x Optical Zoom External 360° PTZ Camera with Wall Bracket
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4.3 Lightning and Surge Protection
When placing outside, you need to consider lightning and surge protection.
To guarantee electrical safety, we can take following measures:
• At least keep 50m distance between signal transmission line and high voltage
equipment or high voltage cable.
• Outdoor wiring under the eaves.
• For open field, use a seal steel pipe buried wiring way, and use one-point earthing with
the steel pipe. Do not use aerial wiring.
• It needs to add extra high-frequency thunder-proof device and lightning rod in strong
thunderstorms area or high inductive voltage region (such as high voltage substation).
• Thunder-proof and grounding design of exterior installation and circuit must be in
accordance with building lightning proof requirements. It must meet national standard
and industry standard.
• System must be equipotential grounding. Grounding device must meet anti-jamming
and electric safety dual requirements. The connection with strong electrified wire
netting can’t be short connection or mixed connection. When system is in the
condition of single-phase grounding, ground impedance is less than 4Ω, ground wire
cross-section area must be more than 25 mm2.
