IEEE PC37.20.1a/D11
Voltage Power Circuit Breaker Switchgear Amendment 1: Short-Time and Short-Circuit Withstand Current Tests; Minimum Areas for Multiple Cable Connections (Superseded by C37.20.1A-2005)
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Language: English
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About This Item
PC37.20.1a/D11 is an inactive technical standard focused on voltage power circuit breaker switchgear, with specific attention to short-time and short-circuit withstand current tests and minimum areas for multiple cable connections. As a standards document in the power, energy, and industry applications space, it supports engineering decisions around equipment durability, connection design, and test expectations. For projects that reference legacy switchgear requirements, PC37.20.1a/D11 can help clarify historical compliance and construction criteria.
What is PC37.20.1a/D11?
PC37.20.1a/D11 is an amendment document related to voltage power circuit breaker switchgear requirements. Its subtitle shows that it addresses short-time and short-circuit withstand current tests, along with minimum areas for multiple cable connections. In practical terms, this kind of standard helps define how switchgear should be evaluated and how certain connection points should be designed to perform under electrical stress. Because it is marked inactive and superseded by C37.20.1A-2005, it is most relevant for legacy documentation and historical reference.
Where is PC37.20.1a/D11 used?
This standard is mainly relevant in the design, testing, and review of power switchgear used in electrical distribution and utility-oriented installations. It may be consulted when assessing circuit breaker assemblies, cable termination arrangements, and withstand performance in medium-voltage or similar power equipment contexts. Engineers, specifiers, and compliance teams may use PC37.20.1a/D11 when comparing older equipment requirements, reviewing archival project records, or verifying that switchgear connections and test provisions align with the applicable legacy specification.
Why is PC37.20.1a/D11 important?
PC37.20.1a/D11 matters because withstand testing and cable connection sizing directly affect safety, reliability, and equipment integrity. Clear requirements help reduce the risk of overheating, connection failure, and damage during fault conditions. For procurement and engineering teams, the document can support consistent evaluation of switchgear designs and provide a reference point for compliance checks on older installations. As a superseded standard, PC37.20.1a/D11 is especially useful when tracing the basis of legacy design decisions or test results.
- Voltage power circuit breaker switchgear
- Short-time withstand current testing
- Short-circuit withstand requirements
- Minimum areas for multiple cable connections
- Legacy reference; superseded by C37.20.1A-2005
- Publication Date: 2005
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
- New Version Available: PC37.20.1 (2024)
- Previous Version: PC37.20.1 (2020)
- Previous Version: PC37.20.1 (2019)
- Previous Version: PC37.20.1 (2019)
- Previous Version: PC37.20.1 (2015)
- Previous Version: PC37.20.1 (2015)
- Previous Version: PC37.20.1 (2014)
- Previous Version: PC37.20.1 (2006)
- Previous Version: PC37.20.1 (2006)
- This Version: PC37.20.1 (2005)
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