IEC 60730-2-8:2018

IEC 60730-2-8 ®
Edition 3.0 2018-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Automatic electrical controls for household and similar use –
Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
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IEC 60730-2-8 ®
Edition 3.0 2018-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Automatic electrical controls for household and similar use –

Part 2-8: Particular requirements for electrically operated water valves,

including mechanical requirements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-6015-9

– 2 – IEC 60730-2-8:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 10
3 General requirements . 13
4 General notes on tests . 13
5 Rating . 14
6 Classification . 14
7 Information . 17
8 Protection against electric shock . 19
9 Provision for protective earthing . 20
10 Terminals and terminations . 20
11 Constructional requirements . 21
12 Moisture and dust resistance . 21
13 Electric strength and insulation resistance . 22
14 Heating . 22
15 Manufacturing deviation and drift . 23
16 Environmental stress . 23
17 Endurance . 24
18 Mechanical strength . 25
19 Threaded parts and connections . 29
20 Creepage distances, clearances and distances through insulation . 29
21 Resistance to heat, fire and tracking . 29
22 Resistance to corrosion . 29
23 Electromagnetic compatibility (EMC) requirements – Emission . 29
24 Components . 29
25 Normal operation . 29
26 Electromagnetic compatibility (EMC) requirements – Immunity. 30
27 Abnormal operation . 30
Annex H (normative) Requirements for electronic controls . 35
Annex AA (informative) Relation between different flow coefficients . 40
Annex BB (normative) Arrangement for the measurement of transient pressures
caused by water valves . 41
Annex CC (normative) Test on valve bodies of thermoplastic material intended to be
connected to the water supply mains Long term pressure test for thermoplastic bodied
valves . 44
Annex DD (normative) Torque . 46
Annex EE (normative) Arrangement for the measurement of transient pressures
caused by water valves with a declared pressure of up to and including 1,0 MPa (10
bar) . 50
Bibliography . 52

Figure BB.1 – Transient pressure measurement test rig schematic diagram . 42
Figure DD.1 – Arrangements for carrying out the torque test . 46

Figure EE.1 – Transient pressure measurement test rig for valves with a declared
pressure of up to and including 1,0 MPa (10 bar) schematic diagram . 50

Table 1 – Required information and methods of providing information . 18
Table 101 – Nominal size and thread size of end connections . 17
Table 102 – Torque test requirement for metal valves with internal threaded end-
connections . 28
Table 103 – Torque test requirement for metal valves with external threaded end-
connections . 28
Table 104 – Maximum winding temperature (for test of blocked output conditions and
valves declared under Table 1, item 113) . 32
Table CC.1 – Test requirements for valves intended for uses other than the control of
water for tap and shower outlets . 44
Table CC.2 – Test requirements for valves intended for the control of water for tap and
shower outlets . 45
Table DD.1.2.1 – Required torque for test . 47
Table DD.6 DD.2 – Tightening torque in newton metres (Nm) for bolts and screws for
adaptors . 48

– 4 – IEC 60730-2-8:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL
CONTROLS FOR HOUSEHOLD AND SIMILAR USE –

Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
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This redline version of the official IEC Standard allows the user to identify the changes
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has been made. Additions are in green text, deletions are in strikethrough red text.

International Standard IEC 60730-2-8 has been prepared by IEC technical committee 72:
Automatic electrical controls.
This third edition cancels and replaces the second edition published in 2000,
Amendment 1:2002 and its
...

IEC 60730:2018+AMD1:2021 CSV/ – 1 –
COR1:2022  IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 60730-2-8 IEC 60730-2-8
Edition 3.1  2021-10 Edition 3.1  2021-10

AUTOMATIC ELECTRICAL CONTROLS – DISPOSITIFS DE COMMANDE ÉLECTRIQUE
AUTOMATIQUES –
Part 2-8: Particular requirements for electrically
operated water valves, Partie 2-8: Exigences particulières pour les
including mechanical requirements électrovannes hydrauliques,
y compris les exigences mécaniques

CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

Annex DD (normative) Torque
Table DD.1 – Required torque for test
Cancel replacement of the title of the fourth column so that the original
...

IEC 60730-2-8 ®
Edition 3.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Automatic electrical controls –
Part 2-8: Particular requirements for electrically operated water valves, including
mechanical requirements
Dispositifs de commande électrique automatiques —
Partie 2-8: Exigences particulières pour les électrovannes hydrauliques,
y compris les exigences mécaniques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
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publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or need CISPR.

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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
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IEC 60730-2-8 ®
Edition 3.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Automatic electrical controls –

Part 2-8: Particular requirements for electrically operated water valves,

including mechanical requirements

Dispositifs de commande électrique automatiques —

Partie 2-8: Exigences particulières pour les électrovannes hydrauliques,

y compris les exigences mécaniques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 978-2-8322-6423-2

– 2 – IEC 60730-2-8:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 9
3 General requirements . 13
4 General notes on tests . 13
5 Rating. 13
6 Classification . 13
7 Information . 16
8 Protection against electric shock . 17
9 Provision for protective earthing . 18
10 Terminals and terminations . 18
11 Constructional requirements . 19
12 Moisture and dust resistance . 19
13 Electric strength and insulation resistance . 19
14 Heating . 20
15 Manufacturing deviation and drift . 21
16 Environmental stress . 21
17 Endurance . 22
18 Mechanical strength . 23
19 Threaded parts and connections . 26
20 Creepage distances, clearances and distances through insulation . 26
21 Resistance to heat, fire and tracking . 26
22 Resistance to corrosion . 26
23 Electromagnetic compatibility (EMC) requirements – Emission . 26
24 Components . 26
25 Normal operation . 26
26 Electromagnetic compatibility (EMC) requirements – Immunity . 27
27 Abnormal operation . 27
28 Guidance on the use of electronic disconnection . 30
Annex H (normative) Requirements for electronic controls . 31
Annex AA (informative) Relation between different flow coefficients . 36
Annex BB (normative) Arrangement for the measurement of transient pressures
caused by water valves . 37
Annex CC (normative) . 40
Annex DD (normative) Torque . 42
Annex EE (normative) Arrangement for the measurement of transient pressures
caused by water valves with a declared pressure of up to and including 1,0 MPa (10
bar) . 46
Bibliography . 48

Figure BB.1 – Transient pressure measurement test rig schematic diagram . 38
Figure DD.1 – Arrangements for carrying out the torque test . 42

Figure EE.1 – Transient pressure measurement test rig for valves with a declared
pressure of up to and including 1,0 MPa (10 bar) schematic diagram . 46

Table 101 – Nominal size and thread size of end connections. 16
Table 1 – Required information and methods of providing information . 16
Table 102 – Torque test requirement for metal valves with internal threaded end-
connections . 25
Table 103 – Torque test requirement for metal valves with external threaded end-
connections . 25
Table 104 – Maximum winding temperature (for test of blocked output conditions and
valves declared under Table 1, item 113) . 28
Table CC.1 – Test requirements for valves intended for uses other than the control of
water for tap and shower outlets . 40
Table CC.2 – Test requirements for valves intended for the control of water for tap and
shower outlets . 41
Table DD.1 – Required torque for test . 43
Table DD.2 – Tightening torque in newton metres (Nm) for bolts and screws for
adaptors . 44

– 4 – IEC 60730-2-8:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –

Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Pu
...

IEC 60730-2-8 ®
Edition 3.1 2021-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic electrical controls –
Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

Dispositifs de commande électrique automatiques –
Partie 2-8: Exigences particulières pour les électrovannes hydrauliques,
y compris les exigences mécaniques

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
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The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

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Le premier dictionnaire d'électrotechnologie en ligne au
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Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
16 langues additionnelles. Egalement appelé Vocabulaire

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Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 60730-2-8 ®
Edition 3.1 2021-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Automatic electrical controls –

Part 2-8: Particular requirements for electrically operated water valves,

including mechanical requirements

Dispositifs de commande électrique automatiques –

Partie 2-8: Exigences particulières pour les électrovannes hydrauliques,

y compris les exigences mécaniques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.120 ISBN 978-2-8322-4467-8

IEC 60730-2-8 ®
Edition 3.1 2021-10
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Automatic electrical controls –
Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

Dispositifs de commande électrique automatiques –
Partie 2-8: Exigences particulières pour les électrovannes hydrauliques,
y compris les exigences mécaniques

– 2 – IEC 60730-2-8:2018+AMD1:2021 CSV
© IEC 2021
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 9
3 General requirements . 13
4 General notes on tests . 13
5 Rating. 13
6 Classification . 13
7 Information . 16
8 Protection against electric shock . 17
9 Provision for protective earthing . 18
10 Terminals and terminations . 18
11 Constructional requirements . 19
12 Moisture and dust resistance . 19
13 Electric strength and insulation resistance . 20
14 Heating . 20
15 Manufacturing deviation and drift . 21
16 Environmental stress . 21
17 Endurance . 22
18 Mechanical strength . 23
19 Threaded parts and connections . 26
20 Creepage distances, clearances and distances through insulation . 26
21 Resistance to heat, fire and tracking . 26
22 Resistance to corrosion . 26
23 Electromagnetic compatibility (EMC) requirements – Emission . 26
24 Components . 26
25 Normal operation . 26
26 Electromagnetic compatibility (EMC) requirements – Immunity . 27
27 Abnormal operation . 27
28 Guidance on the use of electronic disconnection . 30
Annex H (normative) Requirements for electronic controls . 31
Annex AA (informative) Relation between different flow coefficients . 36
Annex BB (normative) Arrangement for the measurement of transient pressures
caused by water valves . 37
Annex CC (normative) . 40
Annex DD (normative) Torque . 42
Annex EE (normative) Arrangement for the measurement of transient pressures
caused by water valves with a declared pressure of up to and including 1,0 MPa (10
bar) . 46
Bibliography . 48

Figure BB.1 – Transient pressure measurement test rig schematic diagram . 38
Figure DD.1 – Arrangements for carrying out the torque test . 42

© IEC 2021
Figure EE.1 – Transient pressure measurement test rig for valves with a declared
pressure of up to and including 1,0 MPa (10 bar) schematic diagram . 46

Table 101 – Nominal size and thread size of end connections. 16
Table 1 – Required information and methods of providing information . 16
Table 102 – Torque test requirement for metal valves with internal threaded end-
connections . 25
Table 103 – Torque test requirement for metal valves with external threaded end-
connections . 25
Table 104 – Maximum winding temperature (for test of blocked output conditions and
valves declared under Table 1, item 113) . 28
Table CC.1 – Test requirements for valves intended for uses other than the control of
water for tap and shower outlets . 40
Table CC.2 – Test requirements for valves intended for the control of water for tap and
shower outlets . 41
Table DD.1 – Required torque for test . 43
Table DD.2 – Tightening torque in newton metres (Nm) for bolts and screws for
adaptors . 45

– 4 – IEC 60730-2-8:2018+AMD1:2021 CSV
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –

Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental a
...