GET https://dev.normadoc.fr/products/ieee-c37-20-7-2007-ieee00003680-241773

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          The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within components of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, and so on. Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant, metal enclosed low-voltage ac power circuit breaker switchgear, arc-resistant metal-enclosed interrupter switchgear, or arc-resistant metal-clad switchgear as applicable, or generally, as arc-resistant switchgear.<br />\n
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          The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within components of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, and so on. Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant, metal enclosed low-voltage ac power circuit breaker switchgear, arc-resistant metal-enclosed interrupter switchgear, or arc-resistant metal-clad switchgear as applicable, or generally, as arc-resistant switchgear.<br />\n
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          The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within components of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, and so on. Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant, metal enclosed low-voltage ac power circuit breaker switchgear, arc-resistant metal-enclosed interrupter switchgear, or arc-resistant metal-clad switchgear as applicable, or generally, as arc-resistant switchgear.<br />\n
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          The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within components of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, and so on. Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant, metal enclosed low-voltage ac power circuit breaker switchgear, arc-resistant metal-enclosed interrupter switchgear, or arc-resistant metal-clad switchgear as applicable, or generally, as arc-resistant switchgear.<br />\n
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          The tests and assessments described in this guide are only applicable to arcing faults occurring entirely in air within the enclosure when all doors and covers are properly secured. This guide does not apply to arcing faults that occur within components of the switchgear assembly, such as instrument transformers, sealed interrupting devices, fuses, and so on. Switchgear designs that meet the requirements of this guide will be referred to as arc-resistant, metal enclosed low-voltage ac power circuit breaker switchgear, arc-resistant metal-enclosed interrupter switchgear, or arc-resistant metal-clad switchgear as applicable, or generally, as arc-resistant switchgear.<br />\n
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          preferred continuous current ratings of the main bus in ac designs are 1600A, 2000A, 3000A, 3200A,<br />\n
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