BS EN 62271-1:2008+A1:2011 - Page 2

BS EN 62271-1:2008 + Amendment 1:2011 High-voltage switchgear and controlgear. Common specifications

BS EN 62271-1:2008 applies to a.c. switchgear and controlgear designed for indoor and outdoor installation and for operation at service frequencies up to and including 60 Hz on systems having voltages above 1 000 V.

BS EN 62271-1 applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and controlgear.

BS EN 62271-1 provides guidance on:

• Normal and special service conditions
• Terms and definitions
• Ratings
• Design and construction
• Type tests
• Routine tests
• Guide to the selection of switchgear and controlgear
• Information with enquiries and orders
• Transport, storage, installation, operation and maintenance
• Safety
• Influence of the product on the environment.

Annexes include:

• Identification of test specimens
• Determination of the equivalent r.m.s. value of a short-time current during a short circuit of a given duration
• Method for the weatherproofing test for outdoor switchgear and controlgear
• Requirements for auxiliary and control circuit components
• Tightness (information, example and guidance
• Tolerances on test quantities during tests
• Information and technical requirements to be given with enquiries, tenders and orders
• Corrosion: Information regarding service conditions and recommended test requirements
• List of symbols and abbreviations used in IEC 62271-1
• Electromagnetic compatibility on site
• List of notes concerning certain countries.