1、 IEC 60800Edition 3.0 2009-07INTERNATIONAL STANDARD NORME INTERNATIONALEHeating cables with a rated voltage of 300/500 V for comfort heating and prevention of ice formation Cbles chauffants de tension assigne 300/500 V pour le chauffage des locaux et la protection contre la formation de glace IEC608
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16、ice clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60800Edition 3.0 2009-07INTERNATIONAL STANDARD NORME INTERNATIONALEHeating cables with a rated voltage of 300/500 V for comfort heating and prevention of ice formation Cbles chauffants de tension assigne
17、300/500 V pour le chauffage des locaux et la protection contre la formation de glace INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE UICS 29.060.20; 97.100 PRICE CODECODE PRIXISBN 2-8318-1054-8 Registered trademark of the International Electrotechnical Commission
18、 Marque dpose de la Commission Electrotechnique Internationale 2 60800 IEC:2009 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope and object7 2 Normative references .7 3 Terms and definitions .8 4 Mechanical classification 10 5 Requirement for marking 11 6 Requirements for installation instructions .12 7 G
19、eneral requirements for construction of cables .12 7.1 General .12 7.2 Conductors13 7.3 Insulation 13 7.4 Electrically conducting screen .13 7.5 Armouring .13 7.6 Sheath 14 7.7 Moisture resistance .14 8 Testing .14 8.1 Type tests General requirements14 8.2 Type tests Detailed test requirements.15 8.
20、2.1 Electrical resistance of heating conductors and screen15 8.2.2 Water immersion and temperature cycling test 15 8.2.3 Verification of rated output for parallel heating cables16 8.2.4 Verification of start-up current for parallel heating cables 17 8.2.5 Penetration test for electrical conductive s
21、creen17 8.2.6 Flammability test .17 8.2.7 Deformation test for installation classification 18 8.2.8 Cold impact test 19 8.2.9 Cold bend test .20 8.2.10 Ageing test for insulation .21 8.2.11 Ageing test for non-metallic sheath21 8.2.12 Compatability test22 8.2.13 UV-resistance test .22 8.2.14 Tensile
22、 test23 8.2.15 Reverse winding test .23 8.2.16 Heat shock test24 8.2.17 Shrinkage test for insulation and sheath 24 8.2.18 Hot set test24 8.2.19 Cyclic ageing test for the heating cable .24 8.2.20 Cyclic ageing test for splices and end seals.25 8.2.21 Checking of the durability of markings .25 8.2.2
23、2 Abrasion test .25 8.2.23 Deformation test for insulation and sheathing materials .26 8.3 Routine and sample tests 26 8.3.1 Voltage test .26 8.3.2 Heating cable resistance and output verification 26 8.3.3 Insulation thickness .26 660800 IEC:2009 3 8.3.4 Sheath thickness .26 8.3.5 Hot set test27 Bib
24、liography28 Figure 1 Typical arrangement for testing the splice 18 Figure 2 Typical arrangement for testing the end seal18 Figure 3 Cold bend test21 Figure 4 Jaws for tensile machine23 4 60800 IEC:2009 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HEATING CABLES WITH A RATED VOLTAGE OF 300/500 V FOR C
25、OMFORT HEATING AND PREVENTION OF ICE FORMATION 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
26、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 Pub
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34、ther 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 t
35、he subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60800 has been prepared by IEC technical committee 20: Electric cables. This third edition cancels and replaces the second edition, published in 1992, and constitu
36、tes a technical revision. The significant technical changes with respect to the previous edition are as follows: introduction of heating cable sets; testing of heating cable sets, including the integrated cold-lead, cold-lead splice and end-termination in twin and multicore cable sets, in addition t
37、o the heating cable; introduction of requirements for installation instructions; reduction to two, instead of three, mechanical classes, one for cables intended for installation with a low risk of mechanical damage (M1) and one for cables intended for installation with a higher risk of mechanical da
38、mage (M2); elimination of reference to specific materials to be used as insulation and sheath; introduction of routine and sample tests. 660800 IEC:2009 5 The text of this standard is based on the following documents: FDIS Report on voting 20/1057/FDIS 20/1066/RVD Full information on the voting for
39、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. The committee has decided that the contents of this publication will remain unchanged until the maintenance result dat
40、e 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. 6 60800 IEC:2009 INTRODUCTION This International Standard is intended to provide a c
41、omprehensive overview of the essential requirements and testing appropriate to electrical resistance heating cables used for comfort heating and prevention of ice formation. While some of this work already exists in national standards or international standards, this standard has collated much of th
42、is existing work. This standard provides a means to verify the electrical, thermal and mechanical durability of resistive heating cables, so that in normal use their performance is without danger to the user or surroundings. Compliance is checked by carrying out all the tests specified in this stand
43、ard. 660800 IEC:2009 7 HEATING CABLES WITH A RATED VOLTAGE OF 300/500 V FOR COMFORT HEATING AND PREVENTION OF ICE FORMATION 1 Scope and object This International Standard is applicable to, and specifies requirements for, resistive heating cables for low temperature applications such as comfort heati
44、ng and the prevention of ice formation. These cables and cable sets may comprise either factory fabricated or field (work-site) assembled units, and which are heating cables assembled in accordance with manufacturers instructions. Bare conductors and protected conductors to be supplied at voltages e
45、qual to, or less than, 50 V are excluded from the scope of this standard. NOTE Terminations and gland fittings are outside the scope of this standard. Typical applications include, but are not limited to: surface heating installed in or under surfaces; direct and storage heating; snow melting and fr
46、ost protection of roofs, gutters, pipes, etc. Heating cables for industrial and commercial applications are specified in the IEC 62395 series 11as are mineral insulated heating cables. Applications in which the operating sheath temperature exceeds 100 C are outside the scope of this standard. The ob
47、ject of this standard is to ensure that electrical resistance heating cables operate safely under their normal defined conditions of use. This is achieved by: employing heating cables of the appropriate construction that meet the test criteria detailed in this standard; including, for cables with an
48、 electrical protective component, a metallic braid, concentric wires or sheath, or other suitable electrically conductive material for protective purposes in case of fault; ensuring that the cables operate at safe temperatures with respect to the materials used in the construction of the cables and
49、their installations according to national regulations. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-461, International Electrotechnical Vocabulary Part 461: Elect
