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BS EN 50274:2002

Current
Current

The latest, up-to-date edition.

Low-voltage switchgear and controlgear assemblies. Protection against electric shock. Protection against unintentional direct contact with hazardous live parts
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-31-2010

Introduction
1 Scope
2 Normative references
3 Definitions
4 Requirements
5 Tests
Annex A (informative) - Figures for explanation

Pertains to low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding AC 1000 V or DC 1500 V.

This standard applies to low-voltage switchgear and controlgear assemblies with a rated voltage not exceeding AC 1 000 V or DC 1 500 V. It sets out the requirements for the provision of additional features to provide protection against electric shock from direct contact with hazardous live parts only for skilled and instructed persons when they are required to manually actuate devices within the assembly and where a level of protection for the operating face of not less than IPXXB cannot be achieved. These devices are those only accessible via a door or cover requiring a key or tool to open it or in an assembly located in an area set apart and where the access to that area is restricted solely to skilled or instructed persons.

This standard does not apply to

  • manually operated devices and their locations where access is available to ordinary persons,

  • low-voltage switchgear and controlgear assemblies where the operating voltage does not exceed AC 50 V or DC 120 V and there is protective separation, in accordance with EN 61140, between these circuits and any other circuits,

NOTE Voltages generated by means of auto-transformers, potentiometers, semiconductor components etc. do NOT meet these requirements.

  • low-voltage switchgear and controlgear assemblies where protection of persons is provided by limitation of steady-state touch current or charge in accordance with EN 61140.

Committee
PEL/121/2
DevelopmentNote
Supersedes 97/206848 DC (07/2002)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
SN EN 50274 : 2002 Identical
I.S. EN 50274:2002 Identical
EN 50274 : 2002 COR 2009 Identical
NBN EN 50274 : 2002 Identical
NEN EN 50274 : 2002 + C1 2009 Identical
UNE-EN 50274:2003 Identical
NF EN 50274 : 2002 Identical

IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
EN 61032:1998 Protection of persons and equipment by enclosures - Probes for verification
IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
EN 61140:2016 Protection against electric shock - Common aspects for installation and equipment
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
IEC 61032:1997 Protection of persons and equipment by enclosures - Probes for verification

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