Viewse VC-EX861, Инструкция по установке и эксплуатации

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
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 short circuited with high voltage
electricity net. When the system is grounded separately, the
resistance of down conductor should be
≤
4
Ω
and the sectional
area of down conductor should be
≤
25 mm 2 (refer to Picture 59)
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