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The communications industry's requirements and interestsOf interest to the communications industry are the amplitude, waveshape, duration and frequency of lightning-originated voltage surges and transients on the communications network, including the distribution system and AC power supply circuits. The cloud-to-ground lightning discharge and its characteristics are thought to be most meaningful. Of specific interest are peak current, waveshape, number of flashes, strokes per flash, and zone of influence. Accurate and meaningful lightning data at the local level (telephone district office) is necessary for a decision on the appropriate protection level. In addition to lightning, the protection engineer must consider other factors such as: AC induction, switching surges, ground potential rise, soil resistivity, bonding and grounding techniques, shielding and isolation, and exposure of the telephone loop.
Document ID
19790022704
Document Type
Conference Paper
Authors
Wanaselja, O. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1979
Publication Information
Publication: Proc.: Workshop on the Need for Lightning Observations from Space
Subject Category
GEOPHYSICS
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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