IEEE - The Institute of Electrical and Electronics Engineers@ Inc.
Scope
This document specifies standard service conditions@ standard ratings@ environmental performance requirements@ and testing requirements for communications networking devices installed in electric power substations. It does not cover such equipment designed for operation in other environments@ such as office locations. It does not cover such equipment used in protective relaying applications@ for which IEEE Std C37.90?-1989 [B6]1@ IEEE Std C37.90.1?-2002 [B7]@ IEEE Std C37.90.2?-1995 [B8]@ and IEEE Std C37.90.3?-2001 [B9] apply.1 The numbers in brackets correspond to the numbers of the bibliography in Annex B.