Historical
ANSI T1.319-1995
Fire Propagation Hazard Testing Procedure for Equipment
Telecommunications central offices and similar-type facilities may be subjected to the effects of a High-Altitude Electromagnetic Pulse (HEMP). HEMP is a by-product of a high altitude (i.e., above the atmosphere) nuclear explosion. Such a pulse is capable of causing extensive upset and possibly disabling damage to unprotected telecommunications facilities within line-of-sight of the nuclear device detonation point(s). Central offices and similar type facilities that incorporate the baseline electrical protection measures specified in ANSI T1.313-1991 provide a measure of protection against the HEMP contingency. The purpose of this new above-baseline standard is to provide additional mitigation measures that will significantly increase the protection of critical components of the public telecommunications network in the event that it becomes exposed to the effects of HEMP. This standard is intended as a guide for the designers of such facilities in the application of basic HEMP protection measures to those central offices and similar-type facilities that may be specifically designated under government contract to receive such measures.
Alliance For Telecommunications Industry Solutions [atis]