1080P SDI PTZ Camera User Manual
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Appendix
Appendix 1 Lightning & Surge Protection
This product adopts TVS plate lightning protection technology to avoid damage caused by a pulse
signal that is below 3000W, like instantaneous lighting strike, power surge, etc. According to the
actual outdoor situation necessary protection measures must be taken, additional to ensuring the
electrical safety.
The distance between signal transmission wires and High-voltage equipment or high-voltage
cable is at least 165ft (50m).
Outdoor wiring should better be routed under eaves as much as possible.
In strong thunderstorm areas or high induction voltage areas (such as high-voltage transformer
substation), high power lightning protection apparatus and lightning conductors should be
added as necessary.
The design of lightning protection and grounding of the outdoor devices and cables should be
considered together with the lightning protection demand of buildings. It also must conform to
the related national standards and industrial standards.
The system should be equipotential grounded. The grounding equipment must conform to the
demands of both system anti-jamming and electrical safety and must not appear short circuit or
mixed circuit with the zero conductor of strong grid. When the system is grounded alone, the
resistance should be no more than 4Ω
. The sectional area of the grounding cable should be no
less than 1inch (25mm).
Figure A- 1
Lightning & Surge Protection
