COP-USA CD59NV-IRWP - Manual (Page 52)

IR Speed Dome Operating Manual
51
APPENDIX: Lighting and surge protection
This product USES the gas discharge tube of TVS diode and protection circuit, can
effectively prevent the 3.0 kV following transient lightning and surge lamp all types of
pulse signal to the damage of equipment. But, for outdoor installation according to the
actual situation on the premise of guarantee the electrical safety to do the necessary
protective measures:
 Signal transmission line must be with the high voltage equipment goods between high
voltage cable to keep a distance of at least 50 meters
 Choose as far as possible outside wiring along the roof line
 For open field must adopt sealing pipe buried wiring way, and the steel pipe by
one‐point earthing, absolutely forbidden by wiring overhead way
 In strong thunderstorms or high induction voltage region (e.g., high voltage
transformer substation), must be taken to add extra high power lightning protection
equipment and installation of lightning rod and other measures
 Lightning protection and grounding design of outdoor installation and wiring must be
combined with the construction of lightning protection requirements into consideration,
and conform to the requirements of relevant national standards and industry standards.
 The system must be equipotential grounding. Grounding device must meet the system
anti‐interference and electrical safety requirements, and shall not be short term or
mixed with strong power grid zero line. System separate grounding, grounding resistance
is not greater than 4Ω.
45°
Grounding Conductor Resistance
Is Not Greater Than 4Ω
Steel Tube Protector
Vedio Arrester
Communication Arrester
Power Source Arrester
Lightning Rod
The Speed Dome Must Be
Intalledin The Range Of
Lightning Rod Under 45 Degrees