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BRITISH STANDARD

BS EN

60204-1:2006

Safety of machinery —

Electrical equipment of

machines —

Part 1: General requirements

The European Standard EN 60204-1:2006 has the status of a

British

Standard

ICS 29.020

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Licensed Copy: Wang Wenwen, TUV Rheinland (Shanghai), Thu Aug 31 11:10:27 BST 2006, Uncontrolled Copy, (c) BSI

BS EN 60204-1:2006

This British Standard was

published under the authority

of the Standards Policy and

Strategy Committee

on 30 June 2006

ISBN 0 580 48713 X

National foreword

This British Standard is the official English language version of

EN 60204-1:2006. It was derived by CENELEC from IEC 60204-1:2005. It

supersedes BS EN 60204-1:1998 which is withdrawn.

The CENELEC common modifications have been implemented at the

appropirate places in the text and are indicated by tags (e.g.

).

The UK participation in its preparation was entrusted to Technical Committee

GEL/44, Safety of machinery — Electrotechnical aspects, which has the

responsibility to:

A list of organizations represented on this committee can be obtained on

request to its secretary.

Cross-references

The British Standards which implement international or European

publications referred to in this document may be found in the BSI Catalogue

under the section entitled “International Standards Correspondence Index”, or

by using the “Search” facility of the BSI Electronic Catalogue or of British

Standards Online.

This publication does not purport to include all the necessary provisions of a

contract. Users are responsible for its correct application.

Compliance with a British Standard does not of itself confer immunity

from legal obligations.

— aid enquirers to understand the text;

— present to the responsible international/European committee any

enquiries on the interpretation, or proposals for change, and keep

UK interests informed;

— monitor related international and European developments and

promulgate them in the UK.

Summary of pages

This document comprises a front cover, an inside front cover, the EN title page,

pages 2 to 125 and a back cover.

The BSI copyright notice displayed in this document indicates when the

document was last issued.

Amendments issued since publication

Amd. No. Date Comments

Licensed Copy: Wang Wenwen, TUV Rheinland (Shanghai), Thu Aug 31 11:10:27 BST 2006, Uncontrolled Copy, (c) BSI

EUROPEAN STANDARD

EN 60204-1

NORME EUROPÉENNE

EUROPÄISCHE NORM

June 2006

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

Ref. No. EN 60204-1:2006 E

ICS 29.020 Supersedes EN 60204-1:1997

English version

Safety of machinery –

Electrical equipment of machines

Part 1: General requirements

(IEC 60204-1:2005, modified)

Sécurité des machines –

Equipement électrique des machines

Partie 1: Règles générales

(CEI 60204-1:2005, modifiée)

Sicherheit von Maschinen –

Elektrische Ausrüstung von Maschinen

Teil 1: Allgemeine Anforderungen

(IEC 60204-1:2005, modifiziert)

This European Standard was approved by CENELEC on 2006-06-01. 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, Cyprus, the Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,

Spain, Sweden, Switzerland and the United Kingdom.

Licensed Copy: Wang Wenwen, TUV Rheinland (Shanghai), Thu Aug 31 11:10:27 BST 2006, Uncontrolled Copy, (c) BSI

Foreword

The text of the International Standard IEC 60204-1:2005, prepared by IEC TC 44, Safety of machinery –

Electrotechnical aspects, together with common modifications prepared by the Technical Committee

CENELEC TC 44X, Safety of machinery – Electrotechnical aspects, was approved by CENELEC as

EN 60204-1 on 2006-06-01.

This European Standard supersedes EN 60204-1:1997.

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) 2007-06-01

– latest date by which the national standards conflicting

with the EN have to be withdrawn

(dow) 2009-06-01

NOTE The application of this standard can involve the selection of components and/or parts that are to be integrated with the

electrical equipment of a machine in accordance with the instructions and/or specifications of the manufacturers of the components

and/or parts.

Also, in the context of legislative duties that are applicable to machinery manufacturers within the European Union it is important to

recognise that the safety of electrical equipment can involve the use of equipment and services provided by other parties (see 3.54).

To assist manufacturers in satisfying these duties it can be necessary for the supplier of the equipment to obtain information about

its intended use. This can be facilitated by establishing an agreement between the user and supplier on basic conditions and

additional user requirements to enable proper design, application and utilization of the electrical equipment of the machine. An

enquiry form that can be used for this purpose is provided in Annex B. Such an agreement is not intended to reduce the level of

safety of the electrical equipment provided by this standard.

__________

EN 60204-1:2006 – 2 –

Endorsement notice

The text of the International Standard IEC 60204-1:2005 was approved by CENELEC as a European

Standard with agreed common modifications.

__________

Licensed Copy: Wang Wenwen, TUV Rheinland (Shanghai), Thu Aug 31 11:10:27 BST 2006, Uncontrolled Copy, (c) BSI

– 3 – EN 60204-1:2006

CONTENTS

INTRODUCTION ..................................................................................................................7

Scope ............................................................................................................................9

2 Normative references ...................................................................................................10

3 Definitions....................................................................................................................12

4 General requirements...................................................................................................19

4.1 General considerations........................................................................................19

4.2 Selection of equipment ........................................................................................20

4.3 Electrical supply ..................................................................................................21

4.4 Physical environment and operating conditions ....................................................22

4.5 Transportation and storage..................................................................................24

4.6 Provisions for handling ........................................................................................24

4.7 Installation ..........................................................................................................24

5 Incoming supply conductor terminations and devices for disconnecting and

switching off .................................................................................................................24

5.1 Incoming supply conductor terminations ..............................................................24

5.2 Terminal for connection to the external protective earthing system .......................25

5.3 Supply disconnecting (isolating) device................................................................25

5.4 Devices for switching off for prevention of unexpected start-up ............................28

5.5 Devices for disconnecting electrical equipment ....................................................28

5.6 Protection against unauthorized, inadvertent and/or mistaken connection.............29

6 Protection against electric shock ..................................................................................29

6.1 General...............................................................................................................29

6.2 Protection against direct contact..........................................................................29

6.3 Protection against indirect contact .......................................................................32

6.4 Protection by the use of PELV .............................................................................33

7 Protection of equipment................................................................................................34

7.1 General...............................................................................................................34

7.2 Overcurrent protection.........................................................................................34

7.3 Protection of motors against overheating .............................................................37

7.4 Abnormal temperature protection.........................................................................38

7.5 Protection against supply interruption or voltage reduction and subsequent

restoration...........................................................................................................38

7.6 Motor overspeed protection .................................................................................39

7.7 Earth fault/residual current protection ..................................................................39

7.8 Phase sequence protection..................................................................................39

7.9 Protection against overvoltages due to lightning and to switching surges..............39

8 Equipotential bonding ...................................................................................................39

8.1 General...............................................................................................................39

8.2 Protective bonding circuit ....................................................................................42

8.3 Functional bonding ..............................................................................................45

8.4 Measures to limit the effects of high leakage current ............................................45

Licensed Copy: Wang Wenwen, TUV Rheinland (Shanghai), Thu Aug 31 11:10:27 BST 2006, Uncontrolled Copy, (c) BSI

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