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BS EN 60664-5:2003

Current

Current

The latest, up-to-date edition.

Insulation coordination for equipment within low-voltage systems A comprehensive method for determining clearances and creepage distances equal to or less than 2 mm

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

16-02-2004

€271.12
Excluding VAT

INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Fundamentals of clearance and creepage distance
  dimensioning
  4.1 Introductory remark
  4.2 Basic principles
  4.3 Voltages and voltage ratings
  4.4 Frequency
  4.5 Time under voltage stress
  4.6 Pollution
  4.7 Information supplied with the equipment
  4.8 Insulating material
5 Requirements and dimensioning procedures
  5.1 General
  5.2 Dimensioning of clearances
  5.3 Dimensioning of creepage distances
  5.4 Requirements for design of solid insulation
6 Tests and measurements
  6.1 Tests
  6.2 Measurement of creepage distances and clearances
Annex A (informative) - Dimensioning to maintain minimum
                        insulation resistance
Annex B (normative) - Water adsorption test
Annex C (informative) - Dimensioning diagrams
Annex D (informative) - Withstand voltage test for creepage
                        distance under humid conditions
Annex ZA (normative) - Normative references to international
                       publications with their corresponding
                       European publications
Bibliography

Describes the dimensioning of clearances and creepage distances for spacings equal to or less than 2 mm for printed wiring board and equivalent constructions, where the clearance and the creepage distance are identical and are along the surface of solid insulation.

Committee
GEL/109
DevelopmentNote
To be read in conjunction with BS EN 60664-1. Supersedes 06/30151798 DC. (12/2007)
DocumentType
Standard
Pages
42
PublisherName
British Standards Institution
Status
Current
SupersededBy
Supersedes

Specifies the dimensioning of clearances and creepage distances for spacings equal to or less than 2 mm for printed wiring board and equivalent constructions, where the clearance and the creepage distance are identical and are along the surface of solid insulation, such as the paths described in example 1, example 5 and example 11 of 4.2 of Part 1. The dimensioning is more precise than that provided by Part 1 (i.e IEC 60664-1). This standard can only be used as an entirety. It is not permitted to select one or more clauses from this standard and to use them in place of the corresponding clauses of Part 1. When this standard is applied to the dimensioning of clearances and creepage distances, all clauses shall be used in place of the corresponding clauses given in Part 1. For clearances and creepage distances larger than 2 mm and for solid insulation in general, Part 1 applies. This standard is based on the following criteria for dimensioning: - minimum clearances independent of the micro-environment (see Table 2); - minimum creepage distances for pollution degrees 1, 2 and 3 to avoid failure due to tracking (see Table 4); - minimum creepage distances to avoid flashover across the insulating surface (see Table 5). A test method is specified for allocating unclassified insulating material to the relevant water adsorption group. Has the status of a basic safety publication in accordance with IEC Guide 104.

Standards Relationship
DIN EN 60664-5 : 2008 Identical
UNE-EN 60664-5:2008 Identical
EN 60664-5:2007 Identical
SN EN 60664-5 : 2003 Identical
I.S. EN 60664-5:2007 Identical
NF EN 60664-5 : 2008 Identical
IEC 60664-5:2007 Identical
NBN EN 60664-5 : 2008 Identical

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