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P525 - Guide for the Design and Installation of Cable Systems in Substations

The purpose of this guide is to provide guidance to the substation engineer in established practices for the application and installation of metallic and optical cables in electric power transmission and distribution substations with the objective of minimizing premature cable failures and their consequences. This guide emphasizes reliable electrical service and safety during the design life of the substation. Regarding cable performance, no single cable characteristic should be emphasized to the serious detriment of others. In addition to good installation, design, and construction practices, a balance of cable characteristics is necessary to provide a reliable cable system. Solutions presented in this guide may not represent the only acceptable practices for resolving problems. This guide should not be referred to or used as an industry standard or compliance standard. It is being presented to aid in the development of wire and cable system installations.This document is a guide for the design, installation, and protection of insulated wire and cable systems in substations with the objective of minimizing cable failures and their consequences. High voltage (greater than 35 kV) cable systems are not covered in this guide.
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