Other tools NBS offers a range of tools for specification and collaboration National BIM Library The most trusted BIM Library in the UK, certified to the internationally-recognised NBS BIM Object Standard Uniclass 2015 A dynamic and unified classification system for the construction industry covering all sectors Construction Information Service (CIS) A comprehensive online collection of construction related standards, regulations, technical advice and articles Plug-ins NBS provides a range of tools to help connect your CAD model to your specification model
Platform Resources Support Events About TheNBS.com Manufacturers Uniclass 2015 Get in touch

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom
Download from CIS *
* A valid subscription to The Construction Information Service is required to download this document.

Click here to find out how to access this document

BS EN IEC 62271-100:2021 High-voltage switchgear and controlgear. Alternating-current circuit-breakers (+A1:2024)

Publication Year

2021

Document Status

Current

Abstract

Applies to circuit-breakers for use in three-phase systems, that are intended for indoor or outdoor installation operating at frequencies of 50Hz and 60Hz in systems having voltages above 1,000V.

Document History

Supersedes BS EN IEC 62271-100:2021. Identical to IEC 62271-100:2021, incorporating amendment 1:2024. Amendment dated 31 October 2024 - Implementation of IEC amendment 1:2024 with CENELEC endorsement A1:2024.

ISBN

9780539260847

Publisher Information

British Standards Institution

With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.

389 Chiswick High Road
London
BSI
UK

Website: http://www.bsi-global.com/
Email: cservices@bsi-global.com
Tel: 020 8996 9000