|
IEC 60730-2-6
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-6: Particular requirements for automatic electrical pressure sensing
controls including mechanical requirements
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 [email protected]
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 more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.
IEC publications search - /searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,
77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [email protected].
IEC 60730-2-6
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
Automatic electrical controls –
Part 2-6: Particular requirements for automatic electrical pressure sensing
controls including mechanical requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.120 ISBN 978-2-8322-2587-5
– 2 – IEC 60730-2-6 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope and normative references . 7
2 Terms and definitions . 8
3 General requirements . 9
4 General notes on tests . 10
5 Rating. 10
6 Classification . 10
7 Information . 11
8 Protection against electric shock . 11
9 Provision for protective earthing . 11
10 Terminals and terminations . 11
11 Constructional requirements . 12
12 Moisture and dust resistance . 14
13 Electric strength and insulation resistance . 14
14 Heating . 14
15 Manufacturing deviation and drift . 14
16 Environmental stress . 15
17 Endurance . 15
18 Mechanical strength . 16
19 Threaded parts and connections . 17
20 Creepage distances, clearances and distances through solid insulation . 17
21 Resistance to heat, fire and tracking . 17
22 Resistance to corrosion . 18
23 Electromagnetic compatibility (EMC) requirements – Emission . 18
24 Components . 18
25 Normal operation . 18
26 Electromagnetic compatibility (EMC) requirements – Immunity . 18
27 Abnormal operation . 18
28 Guidance on the use of electronic disconnection . 18
Annexes . 19
Annex H (normative) Requirements for electronic controls . 20
Annex AA (normative) Number of cycles . 27
AA.1 Number of cycles for independently mounted controls . 27
AA.2 Cycling rate for independently mounted controls . 27
Annex BB (informative) Stainless steel for bellows, bourdon tubes or similar elements . 28
Annex CC (informative) Deviation and drift requirements for pressure operating
controls . 31
Bibliography . 32
IEC 60730-2-6 © IEC 2015 – 3 –
Table 1 (7.2 of edition 3) – Required information and methods of providing information . 11
Table H.101 – Compliance criteria . 22
Table BB.1 – Stainless steel for bellows, bourdon tubes or similar elements (1 of 3) . 28
– 4 – IEC 60730-2-6 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUTOMATIC ELECTRICAL CONTROLS –
Part 2-6: Particular requirements for automatic electrical
pressure sensing controls 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 60730-2-6 has been prepared IEC technical committee 72:
Automatic electrical controls.
This third edition cancels and replaces the second edition published in 2007. This edition
constitutes a technical revision. This edition includes the following significant technical
changes with respect to the previous edition:
a) aligns the text with IEC 60730-1, Edition 5;
b) modifies requirements for Class B control function (H.27.1.2.2);
c) modifies requirements for Class C control function (H.27.1.2.3);
d) modifies requirements for faults during lock-out or safety- shut-down.
IEC 60730-2-6 © IEC 2015 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
72/980/FDIS 72/992/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This part 2 is intended to be used in conjunction with IEC 60730-1. It was established on the
basis of the fifth edition (2013) of that publication. Consideration may be given to future
editions of, or amendments to, IEC 60730-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60730-1 so as to
convert that publication into the IEC standard: Particular requirements for automatic electrical
pressure sensing controls including mechanical requirements.
Where this part 2 states "addition", "modification", or "replacement", the relevant requirement,
test specification or explanatory matter in part 1 should be adapted accordingly.
Where no change is necessary, this part 2 indicates that the relevant clause or subclause
applies.
In the development of a fully international standard, it has been necessary to take into
consideration the differing requirements resulting from practical experience in various parts of
the world and to recognize the variation in national electrical systems and wiring rules.
The “in some countries” notes regarding differing national practices are contained in the
following subclauses:
10.1.4
15.1.101
18.101
Annex CC
In this publication:
1) The following print types are used:
– Requirements proper: in roman type;
– Test specifications: in italic type;
– Notes; in small roman type;
– Words defined in Clause 2: bold.
2) Subclauses, notes, tables and figures which are additional to those in part 1 are numbered
sta
...