IEEE PC37.20.2

Annotation of standard text IEEE PC37.20.2 :

Revision Standard - Active - Draft.

Metal-clad (MC) medium-voltage switchgear that contains draw-out electrically operated circuit breakers is covered. MC switchgear is compartmentalized to isolate components such as instrumentation, main bus, and both incoming and outgoing connections with grounded metal barriers. Ranges from 4.76 kV to 48.3 kV with main bus continuous current ratings of 1200 A, 2000 A, 3000 A, and 4000 A are the rated maximum voltage levels for metal-clad switchgear . Associated control, instruments, metering, relaying, protective, and regulating devices, as necessary, are also contained by MC switchgear. Service conditions, ratings, temperature limitations and classification of insulating materials, insulation (dielectric) withstand voltage requirements, test procedures, and applications are discussed.

ISBN: 979-8-8557-2753-1

Number of Pages: 91

Product Code: STDAPE28365

Keywords: control, cumulative loading, current transformers, draw-out, IEEE C37.20.2(TM), indoor, instrumentation, load current-carrying, metal-clad (MC) switchgear, metal-enclosed (ME) power switchgear, outdoor, protection, switchgear assemblies, transformer accuracy, voltage transformers

Category: Switchgear

Draft Number: PC37.20.2/D4, Oct 2025 - APPROVED DRAFT