GB/T 16935.1-2023: Insulation coordination for equipment within low-voltage supply systems - Part 1: Principles, requirements and tests

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Scope

This document deals with insulation coordination for equipment having a rated voltage
up to AC 1 000 V or DC 1 500 V connected to low-voltage supply systems.
This document applies to frequencies up to 30 kHz.
This document applies to equipment for use up to 2 000 m above sea level and provides
guidance for use at higher altitudes (See 5.2.3.4).
This document provides requirements for technical committees to determine clearances,
creepage distances and criteria for solid insulation. It includes methods of electrical
testing with respect to insulation coordination.
The minimum clearances specified in this document do not apply where ionized gases
are present. Special requirements for such situations can be specified at the discretion
of the relevant technical committee.
However, in case of missing specified values for clearances, creepage distances and
requirements for solid insulation in the relevant product standards, or even missing
standards, this document applies.

Basic Data

Standard ID	GB/T 16935.1-2023 (GB/T16935.1-2023)
Description (Translated English)	Insulation coordination for equipment within low-voltage supply systems - Part 1: Principles, requirements and tests
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K30
Classification of International Standard	29.080.30
Word Count Estimation	74,790
Date of Issue	2023-09-07
Date of Implementation	2024-04-01
Older Standard (superseded by this standard)	GB/T 16935.1-2008
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration