EN 50274:2002

Low-voltage switchgear and controlgear assemblies - Protection against electric shock - Protection against unintentional direct contact with hazardous live parts

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.

Niederspannungs-Schaltgerätekombinationen - Schutz gegen elektrischen Schlag - Schutz gegen unabsichtliches direktes Berühren gefährlicher aktiver Teile

Ensembles d'appareillage à basse tension - Protection contre les chocs électriques - Protection contre le contact direct involontaire avec des parties actives dangereuses

Sestavi nizkonapetostnih stikalnih in krmilnih naprav - Zaščita pred električnim udarom - Zaščita pred nenamernim neposrednim stikom z nevarnimi deli pod napetostjo (vsebuje popravek AC:2009)

General Information

• Status: Published
• Publication Date: 04-Apr-2002
• Withdrawal Date: 31-Jan-2005
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: CLC/SR 121B - Low-voltage switchgear and controlgear assemblies
• Drafting Committee: IEC/SC 17D - IEC_SC_17D
• Parallel Committee: IEC/SC 17D - IEC_SC_17D
• Current Stage: 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
• Start Date: 03-Mar-2020
• Completion Date: 03-Mar-2020
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: SIST EN 50274:2002 - Low-voltage switchgear and controlgear assemblies - Protection against electric shock - Protection against unintentional direct contact with hazardous live parts

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50274:2002
01-september-2002
6HVWDYLQL]NRQDSHWRVWQLKVWLNDOQLKLQNUPLOQLKQDSUDY=DãþLWDSUHGHOHNWULþQLP
XGDURP=DãþLWDSUHGQHQDPHUQLPQHSRVUHGQLPVWLNRP]QHYDUQLPLGHOLSRG
QDSHWRVWMRYVHEXMHSRSUDYHN$&
Low-voltage switchgear and controlgear assemblies - Protection against electric shock -
Protection against unintentional direct contact with hazardous live parts
Niederspannungs-Schaltgerätekombinationen - Schutz gegen elektrischen Schlag -
Schutz gegen unabsichtliches direktes Berühren gefährlicher aktiver Teile
Ensembles d'appareillage à basse tension - Protection contre les chocs électriques -
Protection contre le contact direct involontaire avec des parties actives dangereuses
Ta slovenski standard je istoveten z: EN 50274:2002
ICS:
13.260 9DUVWYRSUHGHOHNWULþQLP Protection against electric
XGDURP'HORSRGQDSHWRVWMR shock. Live working
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 50274:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 50274:2002

---------------------- Page: 2 ----------------------

SIST EN 50274:2002
EUROPEAN STANDARD EN 50274
NORME EUROPÉENNE
EUROPÄISCHE NORM April 2002

y 2009
ICS 29.120.60 Incorporates corrigendum Jul


English version


Low-voltage switchgear and controlgear assemblies -
Protection against electric shock -
Protection against unintentional direct contact with hazardous live parts


Ensembles d'appareillage à basse tension - Niederspannungs-
Protection contre les chocs électriques - Schaltgerätekombinationen -
Protection contre le contact direct Schutz gegen elektrischen Schlag -
involontaire avec des parties actives Schutz gegen unabsichtliches direktes
dangereuses Berühren gefährlicher aktiver Teile






This European Standard was approved by CENELEC on 2002-02-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,
Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50274:2002 E

---------------------- Page: 3 ----------------------

SIST EN 50274:2002
EN 50274:2002 - 2 -

Foreword
This European Standard has been prepared by WG 3 of Technical Committee CENELEC TC 17D, Low-voltage
switchgear and controlgear assemblies. It is intended as a complementary document to EN 60439-1. EN 60439-1
does not address in detail the issue of protection of skilled and instructed persons from electric shock when they
are required to gain access into the assembly to manually operated devices. The intent of this standard is to
provide additional requirements for the protection of these persons against electric shock.
The text of the draft has been submitted to the formal vote and was approved by CENELEC as EN 50274 on
2002-02-01.
The following dates were fixed:
– latest date by which the EN has to be implemented at
national level by publication of an identical national
standard or by endorsement (dop) 2003-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-02-01
Annexes designated "informative" are given for information only.
In this standard, annex A is informative.
The contents of the corrigendum of July 2009 have been included in this copy.

---------------------- Page: 4 ----------------------

SIST EN 50274:2002
 - 3 - EN 50274:2002
Contents
Page
Introduction . 4
1 Scope .
...