User Manual of PanoVu Series Network Camera
Appendix 2 Statics, Interference Lightning and Surge Protection
This product adopts TVS plate lightning protection technology to avoid damage caused by pulse signal
that is below 3000V, like instantaneous lighting stroke, surging, etc. According to the actual outdoor
situation, necessary protection measures must be taken, besides ensuring the electrical safety.
The distance between signal transmission wires and High-voltage equipment or high-voltage cable
is at least 50m.
Outdoor wiring should better be routed under eaves as much as possible.
In the open field, wiring should be buried underground in sealed steel pipe, and the steel-pipe
should be one-point grounding. Overhead routing method is forbidden.
In strong thunderstorm area or high induction voltage areas (such as high-voltage transformer
substation), high power lightning protection apparatus and lightning conductor are necessary to be
added.
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 system anti-jamming and electrical safety both and it 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 25mm2. For grounding instructions, refer to the Installation Manual of Camera.
Lightening Rod
45°
The speed dome must be
installed in the 45° protection
area of the lightening rod.
The impedance of the grounding
wire can be no more than 4Ω.
Steel Protection Tube
Video Arrester
Communication
Arrester
Power Arrester
Figure A.3.1 Lightning & Surge Protection
Grounding for Cement Pole/Wall Installation:
When the camera is installed in environment where is relatively insulating to the earth, e.g., cement
pole or cement wall, then only the control center requires proper grounded locally. Refer to the
following figure.
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