6.
Lightning and Surge Protection
The product uses TVS lightning proof technology to prevent damage by lightning strikes
below 1500W and impulse signals such as surge, but the following precautions should also
be observed to ensure electrical safety in practical situations:
•
Keep communication cables at least 50m away from high voltage equipment or
cables.
•
In areas susceptible to strong thunderstorms or high faradic zones (such as a high
voltage transformer substation), extra strong lightning protection equipment must be
installed.
•
Ensure lightning and surge protection equipment, outdoor equipment and cable
layouts are designed and installed in accordance with all appropriate regulations.
•
The system must be grounded with equal potentials.
•
The earth ground connection must satisfy anti-interference and electrical safety
requirements and must not be connected to a high voltage terminal.
•
When the system is grounded separately, the earth conductor should have a
resistance of less than 4
Ω
and a minimum cross sectional area of 25mm2 (see below).
Summary of Contents for VHSDIR-670EXT-IP
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