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    BS EN 60702-1-2002 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Cables《额定电压不超过750V的矿物绝缘电缆及其终端 电缆》.pdf

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    BS EN 60702-1-2002 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Cables《额定电压不超过750V的矿物绝缘电缆及其终端 电缆》.pdf

    1、BRITISH STANDARD BS EN 60702-1:2002 IEC 60702-1:2002 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 1: Cables The European Standard EN 60702-1:2002 has the status of a British Standard ICS 29.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED

    2、BY COPYRIGHT LAWBS EN 60702-1:2002 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 10 April 2002 BSI 10 April 2002 ISBN 0 580 39308 9 Nati

    3、onal foreword This British Standard is the official English language version of EN 60702-1:2002. It is identical with IEC 60702-1:2002. It supersedes BS 6207-1:1995 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommitt

    4、ee GEL/20/17, Low voltage cables, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered

    5、 as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the

    6、BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are resp

    7、onsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and kee

    8、p the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 25, and a back cover. The BSI copyright date displayed in this document ind

    9、icates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60702-1 NORME EUROPENNE EUROPISCHE NORM March 2002 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komi

    10、tee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60702-1:2002 E ICS 29.060.20 Supersedes HD 586.1 S1:1994 English version Mineral insu

    11、lated cables and their terminations with a rated voltage not exceeding 750 V Part 1: Cables (IEC 60702-1:2002) Cbles isolant minral et leurs terminaisons de tension assigne ne dpassant pas 750 V Partie 1: Cbles (CEI 60702-1:2002) Mineralisolierte Leitungen mit einer Bemessungsspannung bis 750 V Teil

    12、 1: Leitungen (IEC 60702-1:2002) This European Standard was approved by CENELEC on 2002-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-t

    13、o-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation u

    14、nder the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland

    15、, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Foreword The text of document 20/490/FDIS, future edition 3 of IEC 60702-1, prepared by IEC TC 20, Electric cables, was submitted to the IEC-CENELEC parallel vote and was approved by CEN

    16、ELEC as EN 60702-1 on 2002-03-01. This European Standard supersedes HD 586.1 S1:1994. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-12-01 latest date by which the natio

    17、nal standards conflicting with the EN have to be withdrawn (dow) 2005-03-01 Annexes designated “normative“ are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60702-1:2002 w

    18、as approved by CENELEC as a European Standard without any modification. _ 2egaP 2002120706NE BSI10April2002 Page2 EN607021:2002 60702-1 IEC:2002 3 CONTENTS 1 Scope 5 2 Normative references. 5 3 Definitions . 6 4 Voltage designations . 6 4.1 500 V cable (light duty grade). 6 4.2 750 V cable (heavy du

    19、ty grade) 6 5 Conductors 7 6 Insulation. 7 6.1 Composition . 7 6.2 Thickness . 7 7 Metallic sheath 7 7.1 Material 7 7.2 Sheath thickness 7 7.3 Sheath diameter and ovality 7 8 Optional outer covering 7 8.1 General 7 8.2 Material 8 8.3 Halogen-free covering 8 8.4 Thickness of covering. 8 9 Marking . 8

    20、 10 General notes on tests. 9 11 Routine tests . 9 11.1 General 9 11.2 Conductor resistance 9 11.3 Insulation resistance10 11.4 Integrity of insulation and copper sheath10 11.5 Spark test on outer covering10 11.6 Diameter and ovality over copper sheath .11 12 Sample tests.11 12.1 General .11 12.2 Vo

    21、ltage test .11 12.3 Thickness of outer covering.12 12.4 Flame retardance.12 12.5 Emission of acidic and corrosive gases12 12.6 Smoke emission 12 13 Type tests.13 13.1 General .13 13.2 Voltage test on completed cable 13 13.3 Resistance of copper sheath13 13.4 Thickness of insulation 13 13.5 Thickness

    22、 of copper sheath .14 3egaP 2002120706NE BSI10April2002 Page3 EN607021:2002 60702-1 IEC:2002 4 13.6 Bending test 14 13.7 Flattening test18 13.8 Fire resistance.19 14 500 V mineral insulated cable (light duty grade)19 14.1 Code designation.19 14.2 Rated voltage 19 14.3 Construction 19 14.4 Dimensions

    23、19 14.5 Requirements 20 15 750 V mineral insulated cable (heavy duty grade).20 15.1 Code designation.20 15.2 Rated voltage 20 15.3 Construction 21 15.4 Dimensions21 15.5 Requirements 23 Annex ZA (normative) Normative references to international publications with their corresponding European publicat

    24、ions24 4egaP 2002120706NE BSI10April2002 Page4 EN607021:2002 60702-1 IEC:2002 5 MINERAL INSULATED CABLES AND THEIR TERMINATIONS WITH A RATED VOLTAGE NOT EXCEEDING 750 V Part 1: Cables 1 Scope This standard applies to mineral insulated general wiring cables with copper or copper alloy sheath and copp

    25、er conductors and with rated voltages of 500 V and 750 V. Provision is made for a corrosion-resistant extruded outer covering over the copper sheath, when required. This outer covering is not specified for the purpose of electrical insulation of the metal sheath. Requirements for terminations for us

    26、e with these cables are specified in IEC 60702-2. The purpose of this standard is to specify mineral insulated cables that are safe and reliable when properly used, to state the manufacturing requirements and characteristics to achieve this, and to specify methods for checking conformity with those

    27、requirements. 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 60227-1:

    28、1993, Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 1: General requirements IEC 60228:1978, Conductors of insulated cables IEC 60331-21:1999, Tests for electric cables under fire conditions Circuit integrity Part 21: Procedures and requirements Cables of ra

    29、ted voltage up to and including 0,6/1,0 kV IEC 60332-1:1993, Tests on electric cables under fire conditions Part 1: Test on a single vertical insulated wire or cable IEC 60702-2:2002, Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 2: Terminations IEC 60

    30、754-2:1991, Test on gases evolved during combustion of electric cables Part 2: Determination of degree of acidity of gases evolved during the combustion of materials taken from electric cables by measuring pH and conductivity IEC 60811-1-1:1993, Common test methods for insulating and sheathing mater

    31、ials of electric cables and optical cables Part 1: Methods for general application Section 1: Measurement of thickness and overall dimensions Tests for determining the mechanical properties 5egaP 2002120706NE BSI10April2002 Page5 EN607021:2002 60702-1 IEC:2002 6 IEC 60811-1-4:1985, Common test metho

    32、ds for insulating and sheathing materials of electric cables Part 1: Methods for general application Section 4: Tests at low temperature IEC 60811-3-1:1985, Common test methods for insulating and sheathing materials of electric cables Part 3: Methods specific to PVC compounds Section 1: Pressure tes

    33、t at high temperature Tests for resistance to cracking IEC 61034-2:1997, Measurement of smoke density of cables burning under defined conditions Part 2: Test procedure and requirements 3 Definitions For the purpose of this part of IEC 60702, the following definitions apply. 3.1 nominal value value b

    34、y which a quantity is designated and which is often used in tables. Usually, in this standard, nominal values give rise to values to be checked by measurements, taking into account specified tolerances 3.2 routine tests (symbol R) tests made by the manufacturer on each manufactured length of cable t

    35、o check that the whole of each length meets the specified requirements 3.3 sample tests (symbol S) tests made by the manufacturer on samples of completed cable, or components from a completed cable, at a planned frequency, so as to verify that the finished product meets the specified requirements 3.

    36、4 type tests (symbol T) tests made before supplying, on a general commercial basis, a type of cable covered by this standard, in order to demonstrate satisfactory performance characteristics to meet the intended application. These tests are such that, after they have been made, they need not be repe

    37、ated unless changes are made in the cable material, design or manufacturing process which might change the performance characteristics 4 Voltage designations The rated voltages of the cables considered in this standard are as follows. 4.1 500 V cable (light duty grade) For use where the voltage betw

    38、een conductors and sheath and between conductors does not exceed 500 V r.m.s. or 500 V d.c. 4.2 750 V cable (heavy duty grade) For use where the voltage between conductors and sheath and between conductors does not exceed 750 V r.m.s. or 750 V d.c. 6egaP 2002120706NE BSI10April2002 Page6 EN607021:20

    39、02 60702-1 IEC:2002 7 5 Conductors Conductors shall consist of plain annealed copper and shall be of approximately circular cross-section. They shall comply with the requirements given in IEC 60228 for class 1 conductors. Compliance shall be checked by inspection and by measuring the resistance of e

    40、ach conductor of each complete coil of completed cable and measuring the length of the cable. The measured resistance shall be corrected to 20 C and to a length of 1 km, in accordance with 11.2. 6 Insulation 6.1 Composition The insulation shall consist of compressed powdered mineral or minerals whic

    41、h shall form a compact body. The electrical properties of the insulation shall be such that the completed cable shall meet the test requirements of this standard. 6.2 Thickness The nominal thickness of insulation between conductors and between each conductor and the sheath shall be as given in table

    42、s 7 and 10. When measured in accordance with 13.4, the minimum thickness shall be not less than 80 % of the nominal value minus 0,1 mm. 7 Metallic sheath 7.1 Material The sheath shall be of plain annealed copper or copper alloy. The resistance of the sheath, measured and corrected to 20 C in accorda

    43、nce with 13.3, shall comply with the values in tables 9 and 12. 7.2 Sheath thickness The mean thickness of the sheath shall be not less than the nominal thickness specified in tables 8 and 11. The thickness at any point may, however, be less than the nominal value, provided that the difference does

    44、not exceed 10 % of the nominal value. Compliance shall be checked by the test in 13.5. 7.3 Sheath diameter and ovality When measured in accordance with 11.6, the diameter measurements shall be within 0,05 mm of the value specified in tables 7 and 10. 8 Optional outer covering 8.1 General Where deeme

    45、d necessary because of corrosive environments, cable identification or aesthetic appeal, an extruded outer covering may be applied. Application shall be such that the cable complies with the spark test specified in 11.5 and with the flame retardance test specified in 12.4. 7egaP 2002120706NE BSI10Ap

    46、ril2002 Page7 EN607021:2002 60702-1 IEC:2002 8 The covering may be of any colour appropriate for the country of use. The material shall meet the requirements of 8.2 and 8.3, as appropriate. NOTE By agreement between the manufacturer and purchaser, outer coverings of alternative materials and thickne

    47、sses may be applied. 8.2 Material The material of the outer covering shall comply with the following requirements. 8.2.1 Low temperature impact When samples of cable with outer covering are tested in accordance with 8.5 of IEC 60811-1-4, at a temperature of (15 2) C, the samples shall not crack. 8.2

    48、.2 Heat shock test When samples of cable with outer covering are tested in accordance with 9.2 of IEC 60811-3-1, at a temperature of (150 3) C, the samples shall not crack. 8.3 Halogen-free covering Halogen-free covering shall meet the requirements given in 8.2, and be such that the completed cable

    49、will meet the fire performance tests of 12.4, 12.5 and 12.6. 8.4 Thickness of covering When measured in accordance with 12.3, the mean value of the thickness of the outer covering shall be not less than the nominal value given in table 1. The thickness at any point may, however, be less than the nominal value, provided that the difference does not exceed 0,1 mm + 15 % of the specified nominal value. Tab


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