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Network High Speed Mini Dome
User Manual
40
Issue V1.0 (2014-06-10)
A
Lightning Proof and Surge Signal Proof
The product adopts TVS lightning proof technology to prevent from damage by
lightning strike below 1500 W and impulse signals such as surge; but it is also
necessary to abide by the following precautions to ensure electrical safety based on
practical circumstances:
Keep the communication cables at least 50 meters away from high voltage
equipment or cables.
Make outdoor cable laying-out under eaves as possible as you can.
In open area shield cables in steel tube and conduct a single point ground to the
tube. Trolley wire is forbidden in such circumstances.
In strong thunderstorm or high faradic zone (such as high voltage transformer
substation), extra strong lightning proof equipment must be installed.
Take the building lightning proof requirements into account to design the lightning
proof and grounding of outdoor equipment and cable laying-out in accordance with
the national and industrial standards.
The system must be grounded with equal potentials. The earth ground connection
must satisfy the anti-interference and electrical safety requirements and must not be
short connected with high voltage electricity net. When the system is grounded
separately, the resistance of down conductor should be ≤ 4Ω and the sectional area
of down conductor should be ≤25mm
2
(refer to Figure E.1).
Summary of Contents for ELI-SIP-PPTZ-21-10X
Page 1: ...Network High Speed Mini Dome User Manual Issue V1 0 Date 2014 06 10...
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