IEC 60730-2-8:2018
(Main)Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements
Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements
IEC 60730-2-8:2018 applies to electrically operated water valves for use in, on or in association with equipment for household and similar use, including heating, air-conditioning and similar applications. The equipment can use electricity, gas, oil, solid fuel, solar thermal energy, etc., or a combination thereof. This document is applicable to electrically operated water valves for building automation within the scope of ISO 16484. This document also applies to automatic electrically operated water valves for equipment that can be used by the public, such as equipment intended to be used in shops, offices, hospitals, farms and commercial and industrial applications. This document does not apply to electrically operated water valves intended exclusively for industrial process applications unless explicitly mentioned in the relevant equipment standard. This document applies to electrically operated water valves powered by primary or secondary batteries, requirements for which are contained within the standard, including Annex V. This document does not cover the prevention of contamination of drinking water as a result of contact with materials. This document applies to the inherent safety, to the operating values, operating times and operating sequences where such are associated with equipment safety, and to the testing of automatic electrical control devices used in, on or in association with, household and similar equipment. This document contains requirements for electrical features of water valves and requirements for mechanical features of valves that affect their intended operation. This document is also applicable to electrically operated water valves for appliances within the scope of the IEC 60335 series of standards. This document does not apply to:
- electrically operated water valves of nominal connection size above DN 50;
- electrically operated water valves for admissible nominal pressure rating above 1,6 MPa;
- food dispensers;
- detergent dispensers;
- steam valves;
- electrically operated water valves designed exclusively for industrial applications. This document applies to electrically operated water valves, responsive to or controlling such characteristics as temperature, pressure, passage of time, humidity, light, electrostatic effects, flow, or liquid level, current, voltage, acceleration, or combinations thereof. This document also applies to actuators and to valve bodies which are designed to be fitted to each other. This document applies to individual valves, valves utilized as part of a system and valves mechanically integral with multi-functional controls having non-electrical outputs. This document applies to AC or DC powered electrically operated water valves with a rated voltage not exceeding 690 V AC or 600 V DC. This document does not take into account the response value of an automatic action of a valve, if such a response value is dependent upon the method of mounting the valve in the equipment. Where a response value is of significant purpose for the protection of the user, or surroundings, the value defined in the appropriate equipment standard or as determined by the manufacturer shall apply. This document applies also to electrically operated water valves incorporating electronic devices, requirements for which are contained in Annex H. This document applies also to electrically operated water valves using NTC or PTC thermistors, requirements for which are contained in Annex J. This document applies to the electrical and functional safety of electrically operated water valves capable of receiving and responding to communications signals, including signals for power billing rate and demand response. The signals can be transmitted to or received from external units being part of the valve (wired), or to and from external units which are not part of the valve (wireless) under test. This document does not address the integrity of the output signal to the network devices, such as interope
Dispositifs de commande électrique automatiques - Partie 2-8: Exigences particulières pour les électrovannes hydrauliques, y compris les exigences mécaniques
IEC 60730-2-8:2018 est disponible sous forme de IEC 60730-2-8:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
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IEC 60730-2-8 ®
Edition 3.0 2018-08
INTERNATIONAL
STANDARD
Automatic electrical controls –
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
your local IEC member National Committee for further information.
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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 corrigenda or an amendment might have been published.
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documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
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The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
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IEC 60730-2-8 ®
Edition 3.0 2018-08
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-8: Particular requirements for electrically operated water valves,
including mechanical requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-5917-7
– 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 . 27
25 Normal operation . 27
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) Long term pressure test for thermoplastic bodied valves . 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 1 – Required information and methods of providing information . 16
Table 101 – Nominal size and thread size of end connections . 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 . 26
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 Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
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 Amendment 2:2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• alignment of the text with IEC 60730-1 fifth edition (2013) including Amendment 1:2015;
• introduction of specific requirements for thermoplastic bodied valves for the control of
water for tap and shower outlets (18.101.4.3 and Annex CC);
• removal of Subclause 18.102 Wetted material specifications.
Future standards in this series will carry the new general title as cit
...
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
your local IEC member National Committee for further information.
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 corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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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.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
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
your local IEC member National Committee for further information.
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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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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
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all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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...
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
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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
...
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