新IEEE标准-已被取代。 被IEEE标准776-1992取代。讨论了电力和有线通信系统附近存在的感应环境以及可能产生的干扰效应。介绍了一种接口，该接口允许任何一方在不需要另一方参与的情况下，通过使用探测线来验证接口处的感应。本推荐规程不适用于铁路信号电路。

New IEEE Standard - Superseded. Superseded by IEEE Std 776-1992. 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.