IEEE 789-1988

This standard applies to wires and cables, used principally for power system communications and control purposes, which are located within electric power stations or are installed within the zone of influence of the power station ground potential rise (GPR), or which may be buried adjacent to electric power transmission and distribution lines. They may be subjected to high voltages either by conduction or induction coupling, or both. Such voltages are often higher than the insulation withstand capability of ordinary telephone-type cables, which are frequently used for such purposes. This standard covers the appropriate design requirements, electrical and mechanical parameters, the testing requirements, and the handling procedures for cables that are to be installed and operated in high voltage environments. Coaxial and fiber optic cables are specifically excluded from this standard. The objective of this standard is to specify a cable that may be used to ensure the overall reliability of communications and control cables in high voltage environments. There should be a very high probability that these cables will perform their intended function for specified periods of time under high voltage interference conditions. In addition to the requirements of this standard, all communications cables shall meet the requirements of ANSI/ICEA S-56-534-1983 [1] , and all cables shall meet the requirements of ANSI/IEEE Std 532-1982 [8]. All cables shall meet any specific requirements from any of the referenced standards in as required by the user.



New IEEE Standard - Inactive-Withdrawn. The inductive environment that exists in the vicinity of electric power and wire-line telecommunications systems and the interfering effects that may be produced are addressed. An interface that permits either party, without need to involve the other, to verify the induction at the interface by use of a probe wire is presented. This recommended practice does not apply to railway signal circuits.