INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PART 4: CONSIDERATION OF HIGH-FREQUENCY VOLTAGE STRESS

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2006

Publisher

National Standards Authority of Ireland

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FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Clearances
  4.1 General conditions
  4.2 Basic information
  4.3 Homogeneous and approximately homogeneous fields
  4.4 Inhomogeneous fields
5 Creepage distances
  5.1 Experimental data
  5.2 Dimensioning of creepage distances
6 Solid insulation
  6.1 General consideration
  6.2 Influencing factors
  6.3 Dimensioning of solid insulation
7 High-frequency testing
  7.1 Basic requirements
  7.2 Test voltage source
  7.3 Conditioning
  7.4 High-frequency breakdown test
  7.5 High-frequency partial discharge test
  7.6 Examples of test results
8 Non sinusoidal voltages
  8.1 General considerations
  8.2 Periodic impulse voltage
  8.3 Harmonic analysis
  8.4 Dimensioning procedure and testing
Annex A (informative) Insulation characteristics of clearances
        at high-frequency voltages
Annex B (informative) Insulation characteristics of creepage
        distances at high-frequency voltages
Annex C (informative) Insulation characteristics of solid insulation
        at high-frequency voltages
Annex D (normative) Testing of insulation at high-frequency voltages
Annex E (informative) Insulation stressed with non-sinusoidal
        high-frequency voltages
Annex F (informative) Dimensioning diagrams
Bibliography

Describes basic, supplementary and reinforced insulation subjected to high-frequency voltage stress within low-voltage equipment. The dimensioning values directly apply for basic insulation; for reinforced insulation additional requirements apply according to Part 1. It is applicable for the dimensioning of clearances, creepage distances and solid insulation stressed by any type of periodic voltages with a fundamental frequency above 30 kHz and up to 10 MHz.

DevelopmentNote	For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType	Standard
Pages	148
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
DIN EN 60664-4 : 2006 COR 1 2007	Identical
UNE-EN 60664-4:2006	Identical
BS EN 60664-4:2006	Identical
EN 60664-4:2006/corrigendum:2006	Identical
SN EN 60664-4 : 2006	Identical
NF EN 60664-4 : 2006	Identical
IEC 60664-4:2005	Identical
NBN EN 60664-4 : 2006	Identical

IEC 60112:2003+AMD1:2009 CSV	Method for the determination of the proof and the comparative tracking indices of solid insulating materials
IEC 60270:2000+AMD1:2015 CSV	High-voltage test techniques - Partial discharge measurements
IEC GUIDE 104:2010	The preparation of safety publications and the use of basic safety publications and group safety publications
ISO 7864:2016	Sterile hypodermic needles for single use — Requirements and test methods
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 60664-1:2007	Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests

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I.S. EN 60664-4:2006

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