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About This Item

 

Full Description

Scope

This standard covers assemblies of metal-enclosed (ME) conductors along with associated interconnections, enclosures, and supporting structures. The types of assemblies covered are nonsegregated-phase bus, segregated-phase bus, isolated-phase bus, and cable bus. When switches and disconnecting links are included, they shall conform to this standard. This standard encompasses the performance characteristics of indoor and outdoor conductor assemblies with rated maximum operating voltages through 38 kV. This standard does not pertain to UL 857 [B22] type busways and associated fittings. Service conditions, ratings, temperature limitations, and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and applications are established. A guide for calculating losses in isolated-phase bus is included.

Purpose

The purpose of this standard is to: a) Establish minimum construction requirements; b) Establish preferred ratings c) Establish testing and performance requirements; d) Provide application guidance for the ME bus types covered by this standard.

Abstract

Revision Standard - Active. Metal-enclosed (ME) bus assemblies for indoor and outdoor use are discussed in this standard. The types of assemblies covered are nonsegregated-phase bus, cable bus, segregated-phase bus, and isolated-phase bus. Rated maximum voltages of ac ME bus assemblies range from 1058 V through 38 kV with continuous-current ratings of 600 A through 26 000 A for self-cooled ratings and up to 50 000 A for forced-cooled ratings. Rated maximum voltage levels of dc ME bus assemblies range from 300 V through 3200 V with continuous-current ratings of 600 A through 15 000 A. Service conditions, ratings, temperature limitations and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application are discussed. A guide for calculating losses in isolated-phase bus is included.
 

Document History

  1. IEEE C37.23-2015

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    IEEE Standard for Metal-Enclosed Bus

    • Most Recent
  2. IEEE C37.23-2003


    IEEE Standard for Metal-Enclosed Bus

    • Historical Version
  3. IEEE C37.23-1987


    IEEE Guide for Metal-Enclosed Bus and Calculating Losses in Isolated-Phase Bus

    • Historical Version