Electrical Protection of Telecommunications Outside Plant
|Publication Date:||1 May 2008|
Telecommunications outside plant covered in this standard
This standard applies to the electrical protection, bonding, and grounding of telecommunications outside plant facilities. These facilities may consist of paired-conductor cable, wire, coaxial cable, and optical fiber cable, either singularly or in any combination, and associated equipment such as closures, pedestals, electronic apparatus cases, and cable terminals. The outside plant may be aerial, direct buried, or underground. The outside plant is the transmission media interconnecting telecommunications central offices and similar facilities as described in ATIS-0600313.2008, Electrical protection for telecommunications central offices and similar type facilities, to other such facilities or to the telecommunications customer premises at the telephone protector or equivalent location. The electrical protection, bonding, and grounding measures presented in this standard are intended to assist in protecting persons and property, from the effects of lightning, electric power systems, and Electromagnetic Interference (EMI).
Items not covered in this standard
Specific EMI mitigation designs and the electrical protection of central offices and similar facilities, microwave and radio tower structures, the customer network interface, and non-insulated open wire are not covered in this standard. Device-level specifications for electrical protection apparatus are not included in this standard. Optical fiber cables not under the exclusive control of a communications carrier, or not meeting the requirements of ANSI C2, National electrical safety code, (see clause 2) for a communication line are not covered. Dedicated outside plant serving commercial or privately owned electric power generating stations and substations is not covered.
Application of electrical protection
The same degree of electrical protection may not be required on all outside plant. This standard defines, based upon the electrical environment, the criteria necessary to determine the electrical protection that should be applied. The primary consideration is the exposure of the outside plant to sources of unwanted voltage such as lightning and electric power. Other factors, such as those relating to telecommunications service reliability, may dictate the need for electrical protection measures exceeding those described in this standard.