Guidance on clearances and creepage distances in particular for distances equal to or less than 2 mm - Test results of research on influencing parameters

Amended by

IEC TR 63040:2016/COR1:2019

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

26-09-2016

Publisher

International Electrotechnical Committee

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Fundamental aspects and phenomena of clearance
  and creepage distances
5 Clearances and creepage distances
6 Additional information regarding creepage distance
  characteristics - surface current over a creepage
  distance (minimum insulation resistance)
7 Water adsorption test
8 Dimensioning diagrams
9 Withstand voltage test for creepage distance under
  humidity conditions
Bibliography

IEC TR 63040:2016(E) describes test results of research on dimensioning of clearances and creepage distances, for spacing equal to or less than 2 mm for printed wiring material and other equivalent arrangements of insulation, where the clearance and the creepage distance follows the same path along the surface of solid insulation. The information contained in this document is the result of research only and cannot be used for dimensioning the clearances and creepage distances for equipment within low-voltage systems, where IEC 60664-1 applies. However distances can be taken into account for functional reasons. This document provides results of research related to the following criteria:
1) clearances independent from the micro-environment;
2) creepage distances for pollution degree 1, 2 and 3 which extends the use of smaller distances to products having design features similar to printed circuit boards;
3) creepage distances to avoid flashover of the insulating surface;
4) information on minimum creepage distances to maintain minimum insulation resistance.
A test method for the evaluation of the relevant water adsorption group for the surface of any insulating material which has not yet been classified is described.
The contents of the corrigendum of January 2019 have been included in this copy.

DevelopmentNote	Stability Date: 2021. (09/2016)
DocumentType	Technical Report
Pages	34
PublisherName	International Electrotechnical Committee
Status	Current

Standards	Relationship
PD IEC TR 63040:2016	Identical

CEI EN IEC 61076-3-106:2024

Connectors for electrical and electronic equipment - Product requirements - Part 3-106: Rectangular connectors - Detail specification for protective housings for use with 8-way shielded and unshielded connectors for industrial environments incorporating

IEC 60112:2003+AMD1:2009 CSV	Method for the determination of the proof and the comparative tracking indices of solid insulating materials
IEC 60721-3-9:1993	Classification of environmental conditions - Part 3: Classification of groups of environmental parameters and their severities - Section 9: Microclimates inside products
IEC 60364-5-51:2005	Electrical installations of buildings - Part 5-51: Selection and erection of electrical equipment - Common rules
IEC 60050-212:2010	International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
IEC 60721-3-7:1995+AMD1:1996 CSV	Classification of environmental conditions - Part 3-7: Classification of groups of environmental parameters and their severities - Portable and non-stationary use
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV	Degrees of protection provided by enclosures (IP Code)
IEC 60664-5:2007	Insulation coordination for equipment within low-voltage systems - Part 5: Comprehensive method for determining clearances and creepage distances equal to or less than 2 mm
IEC 60721-3-3:1994+AMD1:1995+AMD2:1996 CSV	Classification of environmental conditions - Part 3-3: Classification of groups of environmental parameters and their severities - Stationary use at weatherprotected locations
IEC 60664-1:2007	Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests

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IEC TR 63040:2016

Current

Table of Contents

Abstract

General Product Information

International Equivalents

Standards Referenced By This Book

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