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Standard

IEEE C37.20.1-2015

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Abstract

Revision Standard - Active. Metal-enclosed, low-voltage switchgear—which contains either stationary or drawout, manually or electrically operated low-voltage ac or dc power circuit breakers in individual metal compartments, in three-pole, four-pole, two-pole, or single-pole construction—is covered. Rated maximum voltage levels are 254 V, 508 V, 635 V, 730 V, or 1058 Vac; and 300/325 V, 600 V, 800 V, 1000 V, 1200 V, 1500 V, 1600 V, or 3200 Vdc. The preferred continuous current ratings of the main bus in ac designs are 1600 A, 2000 A, 3000 A, 3200 A, 4000 A, 5000 A, 6000 A, 8000 A, or 10 000 A. For dc designs, the preferred ratings are 1600 A, 2000 A, 2500 A, 3000 A, 4000 A, 5000 A, 6000 A, 8000 A, 10 000 A, or 12 000 A. The switchgear may also contain associated control, instruments, metering, protective, and regulating devices as necessary. The standard deals with service conditions, ratings, temperature limitations, and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and application.

Products specifications

  • Standard from IEEE
  • Published:
  • Document type: IS
  • Pages
  • Publisher: IEEE
  • Distributor: IEEE
  • ICS: 29.130.20
  • National Committee: IEEE Power and Energy Society / Switchgear

Product Relations

  • Referred by: IEEE C37.121-2020
  • Referred by: IEEE 3004.11-2019
  • Referred by: IEEE 693-2018
  • Referred by: IEEE C37.59-2018
  • Referred by: IEEE C37.20.7-2017
  • Referred by: IEEE C37.82-2017
  • Referred by: IEEE C37.24-2017
  • Referred by: IEEE C37.81-2017
  • Referred by: IEEE 1662-2016
  • Referred by: IEEE 1662-2016
  • Referred by: IEEE 45.6-2016
  • Referred by: IEEE C37.13.1-2016
  • Referred by: IEEE C37.27-2015
  • Referred by: IEEE C37.13-2015
  • Referred by: IEEE C37.14-2015
  • Refers: IEEE 693-2005
  • Revises: IEEE C37.20.1-2002
  • Refers: IEEE 120-1989
  • Refers: IEEE 316-1971
  • Refers: ASTM A90/A90M Standard Test Method for Weight (Mass) of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings.
  • Refers: ANSI Z535.4, Product Safety Signs and Labels.
  • Refers: ASTM D229, Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation.
  • Refers: ASTM D412, Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension.
  • Refers: ASTM D714, Standard Test Method for Evaluating Degree of Blistering of Paints.
  • Refers: ASTM D1535, Standard Practice for Specifying Color by the Munsell System.
  • Refers: ANSI C37.50, Low-Voltage AC Power Circuit Breakers Used in Enclosures—Test Procedures.
  • Refers: ASTM G21, Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi.
  • Refers: ASTM B117, Standard Practice for Operating Salt Spray (Fog) Apparatus.
  • Refers: ASTM D1654, Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments.
  • Refers: ASTM A653/653M Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
  • Refers: ANSI C37.51, Metal-Enclosed Low-Voltage AC Power-Circuit-Breaker Switchgear Assemblies-Conformance Test Procedures.