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Telecommunications shelters
and towers are susceptible to
various environmental and power-related
hazards such as lightning and
voltage surges. The phenomenon
of lightning is a random, chaotic
and dangerous act of nature. It
is an unpredictable event, whose
effects can be direct or indirect.
During lightning, pulses of amplitude
~200 KA with wave shape of 10/350
microns are generated.
Lightning flashes have been graded,
indicating that they can reach
temperatures to the tune of 30,000
degrees Fahrenheit or more.
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IEC 61312 maintains that despite
having a proper earthing system,
50% of lightning charge enters
the system through power lines,
telecom data lines and water–gas
pipes. In other words, if 200
KA lightning strikes and is
grounded, half of it is absorbed
by the earth. Yet, the potentially
damaging charge of approximately
100 KA would return to the system
through the grounding loop.
ACME Tele Power Ltd. provides
lightning and
surge protection to telecommunication
equipment. It offers a dynamic,
external lightning protection
device, which is radio quiet
and its operation only occurs
during lightning. ACME also
provides internal lightning
and surge protection systems.
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