I.S. EN 60255-5:2001
Withdrawn
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ELECTRICAL RELAYS - INSULATION COORDINATION FOR MEASURING RELAYS AND PROTECTION EQUIPMENT - REQUIREMENTS AND TESTS
Hardcopy , PDF
04-08-2014
English
06-22-2001
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
INTRODUCTION
1 Scope and object
2 Normative references
3 Definitions
4 Insulation coordination
4.1 Basic principles
4.2 Voltages and voltage ratings
4.3 Time under voltage stress
4.4 Pollution
4.5 Information to be found on the relay or in the
operating structures
4.6 Insulation material
5 Dimensioning requirements and rules
5.1 Dimensioning of clearances
5.2 Dimensioning of creepage distances
5.3 Requirements for design of solid insulation
6 Tests and measurements
6.1 Tests
6.2 Measurements
Annex A (informative) Nominal voltages of supply systems
Annex B (informative) Altitude correction factors
Annex C (informative) Guidance for impulse voltage tests
Annex D (informative) Measurement of creepage distances and
clearances
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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