PD 6499:1981
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Guide to insulation co-ordination within low-voltage systems including clearances and creepage distances for equipment
Hardcopy , PDF
10-15-1995
English
08-31-1981
Cooperating organizations
National foreword
Introduction
Section one - General and definitions
1 Scope
2 Object
3 Definitions
Section two - Insulation co-ordination
4 Basic principles of insulation co-ordination
Section three - Clearances in air
5 Influencing factors
6 Description of the fundamental factors influencing
clearance
7 Description of the other factors which may influence
a clearance
8 Dielectric tests
Section four - Creepage distances
9 General
10 Specification of the influencing factors
11 Dimensioning of creepage distances
12 Measurement of creepage distances and clearances
Appendices
A Altitude correction factors
B Transient overvoltage control means (surge arrestor
devices)
C Example of dimensioning procedure for clearances and
creepage distances
Explanatory note
Application guide for clearances and insulation
co-ordination based on clearance
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