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1、BRITISH STANDARD BS 6207-2: 1995 Incorporating Amendment No. 1 Mineral insulated cables with a rated voltage not exceeding 750 V Part 2: Terminations (Implementation of CENELEC HD 586.2 S1) BS 6207-2:1995 This British Standard, having been prepared under the direction of the Electrotechnical Sector
2、Board, was published under the authority of the Standards Board and comes into effect on 15 June 1995 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference GEL/20 Draft announced in BSI News December 1994 ISBN 0 580 24108 4 Committees responsible for this
3、British Standard The preparation of this British Standard was entrusted to Technical Committee GEL/20, Electric cables, upon which the following bodies were represented: Association of Consulting Engineers Association of Manufacturers of Domestic Electrical Appliances BEAMA Electrical Cable and Cond
4、uctor Accessory Manufacturers Association British Approvals Service for Cables British Cable Makers Confederation British Plastics Federation British Steel Industry Department of Trade and Industry (Consumer Safety Unit, CA Division) Electricity Association Engineering Equipment and Materials Users
5、Association Institution of Electrical Engineers London Regional Transport The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of Manufacturers Allied to the Electrical and Electronic Industry (BEAMA Ltd.) British Non-Ferrous Metal
6、s Federation British Steel plc Chartered Institution of Building Services Engineers ERA Technology Ltd. Electrical Installation Equipment Manufacturers Association (BEAMA Ltd.) Engineering Industries Association GAMBICA (BEAMA Ltd.) Institution of Incorporated Executive Engineers Lighting Industry F
7、ederation Ltd. London Underground Ltd. National Association of Lift Makers Portable Electric Tool Manufacturers Association Transmission and Distribution Association (BEAMA Limited) Amendments issued since publication Amd. No.DateComments 9273November 1996 Indicated by a sideline in the margin BS 62
8、07-2:1995 BSI 03-1999i Contents Page Committees responsibleInside front cover National foreword ii Foreword2 Text of HD 586.2 S13 List of references Inside back cover BS 6207-2:1995 ii BSI 03-1999 National foreword This Part of BS 6207 has been prepared by Technical Committee GEL/20. It implements H
9、armonization Document HD 586.2 S1:1994, including corrigendum 1995, published by the European Committee for Electrotechnical Standardization (CENELEC). Part 1 of BS 6207 specifies mineral insulated general wiring cables with copper sheath and copper conductors with rated voltages up to 750 V. This P
10、art of BS 6207 specifies terminations for use with the cables specified in Part 1. The foreword of HD 586.2 makes reference to the “date of withdrawal” (dow) of the relevant national standard. In this case, the relevant British Standard is BS 6081:1989, which is withdrawn. For products which have co
11、nformed to BS 6081:1989, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1 April 1996. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for
12、their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred toCorresponding British Standard IEC 423BS 6053:1981 Specification for outside diameters of conduits for electrical installations and threads
13、 for conduits and fittings BS 5501 Electrical apparatus for potentially explosive atmospheres EN 50014Part 1:1977 General requirements EN 50015Part 2:1977 Oil immersion “o” EN 50016Part 3:1977 Pressurized apparatus “p” EN 50017Part 4:1977 Powder filling “q” EN 50018Part 5:1977 Flameproof enclosure “
14、d” EN 50019Part 6:1977 Increased safety “e” EN 50020Part 7:1977 Intrinsic safety “i” HD 586.1 S1BS 6207 Mineral insulated cables with a rated voltage not exceeding 750 V Part 1:1995 Cables Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the HD title pag
15、e, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. HARMONIZATION DOCUMENT DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT HD 586
16、.2 S1 September 1994 UDC 621.315.687.3:621.315.2:621.315.613Incorporating corrigendum 1995 Descriptors: Termination, electric cable, insulated cable, solid electric insulation, specification, dimension, test English version Mineral insulated cables with a rated voltage not exceeding 750 V Part 2: Te
17、rminations Cbles isolant minral, de tension assigne ne dpassant pas 750 V Partie 2: Extrmits Mineralisolierte Leitungen mit einer Nennspannung bis 750 V Teil 2: Endverschlsse This Harmonization Document was approved by CENELEC on 1994-03-08. CENELEC members are bound to comply with the CEN/CENELEC I
18、nternal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning such national implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This H
19、armonization Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerla
20、nd and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1994 Copyright reserved to CENELEC members Ref. No. HD 586.
21、2 S1:1994 E BS 6207-2:1995 2 BSI 03-1999 Foreword This Harmonization Document was prepared by CENELEC Technical Committeee TC 20, Electric cables. It was submitted to the CENELEC Unique Acceptance Procedure (UAP) in May 1993 and was approved by CENELEC as HD 586.2 S1 on 1994-03-08. The following dat
22、es were fixed: For products which have complied with the relevant national standard before 1995-04-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1996-04-01. This Part 2 of HD 586 is to be used in conjunction with HD 586
23、.1 S1:1994. Contents Page Foreword 2 1Scope3 2Definitions3 2.1Termination3 2.2Seal3 2.3Gland3 3Marking3 3.1Marking of packages3 3.2Marking of seals and glands3 4Construction3 4.1Seals3 4.2Glands3 5Type tests4 5.1General4 5.2Seals4 5.3Glands5 5.4Electrical earth continuity test5 Table 1 Proof Loads f
24、or Sealing Pots or Glands4 latest date of announcement of the HD at national level(doa) 1994-10-01 latest date of publication of a harmonized national standard(dop) 1995-04-01 latest date of withdrawal of conflicting national standards(dow) 1995-04-01 BS 6207-2:1995 BSI 03-19993 1 Scope This standar
25、d specifies requirements for terminations for use with mineral insulated cables complying with the requirements of CENELEC harmonised publication HD 586.1. 2 Definitions The following definitions apply for the purpose of this standard. 2.1 termination a complete end fitting for a mineral insulated c
26、able, normally comprising a seal and a gland or a composite seal/gland device, but excluding the locknut and any associated junction box or accessory 2.2 seal the part of a termination designed to seal the end of the cable against entry of moisture. The design must be such as to provide insulation b
27、etween conductors and between conductors and sheath and provide conductor insulation external to the seal. It may also have a means of providing a protective conductor 2.3 gland the part of a termination designed to secure the cable in a cable entry. It may or may not be used to ensure earth continu
28、ity depending upon the type of construction and material used 3 Marking 3.1 Marking of packages Packages in which terminations or parts of terminations are supplied shall be marked with the following particulars if applicable. The manufacturer or supplier. The maximum and minimum operating temperatu
29、re of the seals. A mark or means of identifying the cables or cables for which it is intended. Whether a protective conductor is provided. Gland thread form and size. 3.2 Marking of seals and glands Seals and glands shall be marked with a mark or means of identifying the cable or cables for which th
30、ey are intended. In addition, glands certified for use in hazardous areas shall be marked in accordance with EN50 014, EN50 015, EN50 016, EN50 017, EN50 018, EN50 019, EN50 020. 4 Construction 4.1 Seals 4.1.1 A seal shall consist of a moisture resistant material contained if necessary within a suit
31、able enclosure, and shall provide electrical insulation for the cable conductors. 4.1.2 A protective conductor may be connected to a metallic sealing enclosure by any suitable method (e.g. welding, brazing, crimping or soldering) or it may be connected directly to the metal sheath by any suitable at
32、tachment (e.g. clip or clamp). The size of the protective conductor shall be in accordance with publication HD 384 and the attachment shall meet the electrical continuity test requirement specified in sub-clause 5.4. 4.1.3 A seal for use in potentially explosive atmospheres shall comply with the req
33、uirements of this standard and the appropriate requirements specified in EN50 014, EN50 015, EN50 016, EN50 017, EN50 018, EN50 019, EN50 020. 4.1.4 A seal or enclosure shall be made from material which will ensure freedom from corrosion arising from electrolytic action. 4.1.5 The sealing material u
34、sed in the termination shall be such that the completed seal is capable of meeting the test requirements specified in clause 5. 4.1.6 Sleeving for conductor insulation shall be suitable for the range of operating temperatures stated for the seal by the manufacturer. 4.2 Glands 4.2.1 A gland may be o
35、f any suitable material providing that it ensures freedom from corrosion arising from electrolytic action and meets the test requirements specified in clause 5. 4.2.2 The gland entry threads shall have a preferred thread form in accordance with those specified for conduit in IEC publication 423: Out
36、side Diameters of Conduits for Electrical Installations and Threads for Conduits and Fittings. Other threads are permitted provided that the gland complies with all the other requirements of this standard. 4.2.3 The length of gland entry threads shall be not less than 8 mm. 4.2.4 Glands for use in p
37、otentially explosive atmospheres shall comply with the requirements of this standard and also the appropriate requirements specified in EN50 014, EN50 015, EN50 016, EN50 017, EN50 018, EN50 019, EN50 020. BS 6207-2:1995 4 BSI 03-1999 5 Type tests 5.1 General The tests in this standard are type test
38、s intended to establish termination design characteristics. Unless otherwise specified all tests shall be carried out at an ambient temperature of 20 10 C. The test voltage shall be either a.c. of approximately sinusoidal waveform at a frequency in the range 49 Hz to 61 Hz, or d.c. equal to the peak
39、 value of the alternating voltage, and shall be applied gradually. The seals and glands to be tested shall be fitted in accordance with the manufacturers recommendations to both ends of 300 50 mm lengths of MI cable complying with Harmonised CENELEC publication HD 586.1 of a size and rated voltage a
40、ppropriate to the seals/glands under test. Each seal shall be fitted as soon as possible after the end of the cable has been prepared to minimise the ingress of moisture. New seals/glands shall be taken for each electrical and mechanical test. 5.2 Seals 5.2.1 Voltage test The sample shall withstand
41、the following test voltage applied between each conductor and every other conductor, and between each conductor and sheath, for five minutes. Seals for 500 V rated cable 2 000 V rms Seals for 750 V rated cable 2 500 V rms 5.2.2 Insulation resistance test The insulation resistance measured with a d.c
42、. voltage between 80 V and 500 V applied between the conductor, or conductors bunched together, and the sheath shall be not less than 100 Mohms. 5.2.3 Insulation integrity test This test shall be carried out in addition to the insulation resistance test after environmental tests specified in sub-cla
43、uses 5.2.4 and 5.2.5 as an indirect check that the insulation has not deteriorated. The insulation integrity test is a voltage test applied between each conductor and every other conductor and between each conductor and sheath. The voltage equal to the rated voltage of the cable shall be applied for
44、 five minutes. No insulation breakdown shall occur. 5.2.4 Maximum operating temperature test The sample shall be heated to a temperature at least 5 K and not more than 10 K higher than the maximum operating temperature specified by the manufacturer. At this temperature it shall pass the insulation i
45、ntegrity test specified in 5.2.3, and the insulation resistance measured with a d.c. voltage between 80 V and 500 V applied between a conductor, or conductors bunched together, and the sheath shall be not less than 1 Mohm. 5.2.5 Temperature cycle test The sample shall be heated to at least 5 K and n
46、ot more than 10 K higher than the maximum operating temperature specified by the manufacturer and maintained at this temperature for 16 1h. Then it shall be transferred to a refrigerated compartment and maintained at the minimum operating temperature specified by the manufacturer ( 5 k), for 8 1h. T
47、his cycle shall be repeated 20 times. On completion of 20 cycles the sample shall be allowed to return to room temperature and then it shall be placed in a humidity cabinet at (25 5) C and (95 5) % relative humidity for (16 1) h. After removal from the humidity cabinet, the surface moisture shall be
48、 dried and the sample shall pass the insulation resistance test as specified in subclause 5.2.2. and the insulation integrity test as specified in 5.2.3. 5.2.6 Tensile test This test is applicable only to those seals which are intended to be used as a means of attachment of cables to supporting stru
49、ctures or enclosures. For the purpose of this test one seal may be fitted to the cable sample. The assembly shall be tested in a suitable tensile testing machine in such a way that the load is applied without imparting any crushing force. The load shall be increased gradually to the proof value specified in Table 1, and maintained at that value for 5s. After testing the seal shall show no splits or cracks or movement relative to the cable when examined with normal or corrected vision without magnification. Table 1 Proof Loads
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