IEC 60730-2-6-2015 Automatic electrical controls - Part 2-6 Particular requirements for automatic electrical pressure sensing controls including mechanical requ.pdf

1、 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 IEC 60730-2-6:2015-04(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva,

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4、Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch 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

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9、nical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37

10、, 77, 86 and CISPR. 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: csciec.ch. IEC 60730-2-6 Edition 3.0 2015-04 INTERNATIONAL STANDARD Automatic electrical controls Par

11、t 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 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained t

12、his publication from an authorized distributor. 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 .

13、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

14、 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 2

15、5 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 o

16、f 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 Bibliograph

17、y 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 COM

18、MISSION _ 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 elect

19、rotechnical 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 Specific

20、ations, 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. Internation

21、al, 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 d

22、ecisions 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 in

23、ternational 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

24、 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

25、 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 certificat

26、ion 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,

27、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

28、 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

29、 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 fol

30、lowing 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 durin

31、g 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. Th

32、is 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,

33、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“, “modif

34、ication“, 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

35、 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

36、 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

37、additional to those in part 1 are numbered starting from 101, additional annexes are lettered AA, BB, etc. A list of all parts of the IEC 60730 series, published under the title Automatic electrical controls can be found on the IEC website. 6 IEC 60730-2-6 IEC 2015 The committee has decided that the

38、 contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingu

39、al version of this publication may be issued at a later date. IEC 60730-2-6 IEC 2015 7 AUTOMATIC ELECTRICAL CONTROLS Part 2-6: Particular requirements for automatic electrical pressure sensing controls including mechanical requirements 1 Scope and normative references This clause of Part 1 is applic

40、able except as follows: 1.1 Scope Replacement: This part of IEC 60730 applies to automatic electrical pressure sensing controls with a minimum gauge pressure rating of 60 kPa and a maximum gauge pressure rating of 4,2 MPa, for use in, on or in association with, equipment. The equipment may use elect

41、ricity, gas, oil, solid fuel, solar thermal energy, etc. or a combination thereof. NOTE Throughout this standard, the word “equipment” includes “appliances” and “control system”. This standard is also applicable to individual pressure sensing controls utilized as part of a control system or pressure

42、 sensing controls which are mechanically integral with multi- functional controls having non-electrical outputs. Automatic electrical pressure sensing controls for equipment used by the public, such as equipment intended to be used by laymen in shops, in light industry and on farms, are within the s

43、cope of this standard. This standard does not apply to pressure sensing controls intended exclusively for industrial process applications unless explicitly mentioned in the relevant equipment standard. 1.1.1 Replacement: This standard applies to inherent safety, operating values, operating sequences

44、 where such are associated with equipment protection, and to the testing of automatic electrical pressure sensing controls used in, on or in association with equipment. This standard is also applicable to the functional safety of low complexity safety related pressure sensing controls and systems. T

45、his standard is also applicable to pressure sensing controls for appliances within the scope of IEC 60335-1. See also Annex J. 1.1.2 Addition: This standard applies to automatic electrical controls, mechanically or electrically operated, responsive to or controlling a pressure or vacuum. 1.1.3 Not a

46、pplicable. 8 IEC 60730-2-6 IEC 2015 1.1.4 Replacement: This standard applies to manual controls when such are electrically and/or mechanically integral with pressure sensing controls. NOTE Requirements for manual switches not forming part of an automatic control are contained in IEC 61058-1. 1.1.5 R

47、eplacement: This standard applies to a.c. or d.c. powered pressure sensing controls with a rated voltage not exceeding 690 V a.c. or 600 V d.c. 1.1.6 Replacement: This standard does not take into account the response value of an automatic action of a pressure sensing control, if such a response valu

48、e is dependent upon the method of mounting it 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. 1.1.7 Replacement: This standard

49、 applies also to pressure sensing controls incorporating electronic devices, requirements for which are contained in Annex H. This standard applies also to pressure sensing controls using NTC or PTC thermistors, requirements for which are contained in Annex J. Additional subclauses: 1.1.101 This standard contains requirements for electrical features of pressure sensing controls and requirements for mechanical features that affect their intended operation. NOTE Subclause 18.101, as it pertains