1、C ENEIEC Rue Br+dePada O. Ete ?5 - 1000 BRUXELLES T+I. : +ae.2SlS 6B 71 - Tdlx : 28257 Cenlac b Fax +322jS19r66 19-TiBtex:W6 2r210097CENCEL INFORMATION SHEET HO 21.7 S1 lissue 1 1990-02-151 February 1990 I I Polyvinyl chloride insulated cables of rated voltages up to and including 4501750 V Part 7:
2、Single core non-sheated cables for internal wiring for a conductor temperature of 9OC Conducteurs et cbles isoles au polychlorure de vinyle, de tension assignee au plus gale 5 4501750 V Septime partie: Conducteurs pour une temperature de lime de 9OC, pour filerie interne Polyvinylchlorid-isolierte L
3、eitungen mit Nennspannungen bis 1501750 V Teil 7: Einadrige Leitungen ohne Mantel fr die innere Verdrahtung mit einer hchstzulassigen Betriebstemperatur am leiter von 9OC This Harmonization Document consists of the following: - Title Page Related to Directive: 731231EEC - Text prepared by CENELEC TC
4、 20 date of ratification : 1989-12-05 date of announcement : 1990-06-01 date of withdrawal : 1990-12-01 date of latest publication : 1990-12-01 LIST OF NATIONAL STANDARDS IS GIVEN OVERLEAF HD*ZL*7*SL YO m 3404583 O003746 Y m HARMONIZED NATIONAL STANDARDS HO 21.1 Sl AT : BE : CH : DE : OK : ES : FI :
5、 FR : GB : GR : E : IS : It : LU : NOS Ni : NO : PT : SE : CENE atal. : (+ 32.21SIS 56 71 - T&Iex : 26257 Canleo b Fax +322)51S 68 lS-Tergcex:248 2210097CENCEL Rue Eraderode 2. eta 5 - February 1990 UDC: 621.315.3:621.315.616:621.3.027.267.5 Descriptors: Insulated cable, polyvinyle chloride POLYVINY
6、L CHLORIDE INSULATED CABLES OF RATED VOLTAGES UP TO AND INCLUDING 450/750 V PART 7: SINGLE CORE NON-SHEATED CABLES FOR INTERNAL WIRING FOR A CONDUCTOR TEMPERATURE OF 9OC Conducteurs et cibles Polyvinylchlorid-isolierte isols au polychlorure de Leitungen mit Nennspannungen vinyle, de tension assignee
7、 bis 450i750 V au plus gale i 4501750 V Teil 7: Einadrige Leitungen ohne Septime partie: Conducteurs Mantel fr die innere Verdrahtung pour une temperature de lme de 9C, pour filerie interne Betriebstemperatur am leiter von 9OC mit einer hchstzulassigen BODY OF THE HO - The Harmonization Document con
8、sists of: - Text prepared by CENELEC TC 20 This Harmonization Document was approved by CENELEC on 1989-12-05. All texts prepared by CENELEC exist in three official versions (English, French and German). According to the CENELEC Internal Regulations the CENELEC member National Committees are bound: t
9、o announce the existence of this Harmonization Document at national level by or before 1990-06-01 to publish their new harmonized national standard by or before 1990-12-01 4 to withdraw all conflicting national standards by or before 1990-12-01 Harmonized national standards are listed on the HD info
10、rmation sheet, which is available from the CENELEC National Committees from the CENELEC Central Secretariat. The CENELEC National Committees are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy I Luxemburg , Netherlands
11、, Norway , Portugal, Spain , Sweden , Switzerland and United Kingdom. Copyright reserved to all CENELEC members i HD*21.7*S1 90 m 340q583 0003748 2 Page 2 HD 21.7 S1 n FOREWORD HD21 was originally adopted by CENELEC on 9th July 1975. Edition 2 of HD21 was implemented on Ist January 1984, and at that
12、 time contained 5 parts. Since 1984, new parts have been published, original parts amended, and in addition HD 505 has superseded HD 385 as the cross-reference for test methods. This reprint of the 5 parts of Edition 2 of HD21 incorporates all ratified amendments and the change to HD 505. The new pa
13、rts 8 and 9 of HD 21, which are Edition 1 versions, are reprinted to incorporate the change to HD 505. The issue of new Part 7 coincides with this reprint. HD21 now has the following parts: HD21.1 S2 HD21.2 S2 HD21.4 S2 HD21.5 S2 HD21.6 HD21.7 S1 HD21.8 SI 21.3 s2 21.9 si This part Sept ember Genera
14、l Requirements (with AMI, AM2, AM3 and AM4) Test Methods (with AM11 Non Sheathed Cables for Fixed Wiring (with AMI) Sheathed Cables for Fixed Wiring Flexible Cables (Cords) (with AM1 and AM21 Spare 1 Single core Non-Sheathed Cables for conductor temperature) Single Core Non-Sheathed Cables for Singl
15、e Core Non-Sheathed Cables for Temperatures Internai Wiring (90C Decorative Chains Installation at Low - Part 7 - was agreed by TC 20 at its meeting in Madrid 1985. References are made, in this Part 7 of HD21, to other parts of this HD and to other Harmonisation Documents as follows: HD 383 HD 405.1
16、 Tests on Electric Cables Under Fire Conditions. Part 1: Test on HD 505 Common test methods for insulating and sheathing materials of Conductors of Insulated Cables (Endorsing IEC 228 and 228A) a single vertical cable (Endorsing IEC 332-1 ) Electric Cables (Endorsing IEC 81 1 In all cases a referenc
17、e to another HD implies the latest edition of that doc um en t Foreword 1. Scope HD 21.7 S1 Page 3 CONTENTS 2. Single Core Non-Sheathed Cables for Internal Wiring for a Conductor temperature of 90C 2.1 Code designation 2.2 Rated voltage 2.3 Construction 2.4 Tests 2.5 2.6 Guide to use Indication of o
18、rigin and Temperature Marking Page 2 4 4 Page 4 HD 21.1 S1 POLYVINYL CHLORIDE INSULATED CABLES OF RATED VOLTAGE UP TO AND INCLUDING 450/750V 1. Scope This Part 7 of the HD details the particular requirements for polyvinyl chloride insulated cables of rated voltages Uo/U 300/500V for internal wiring
19、of electrical apparatus where wiring is operated in a high temperature zone. The high temperature may be caused by high ambient temperature and/or by heat generated by the equipment. Each cable shall comply with the appropriate requirements given in Part 1 and the particular requirements of this par
20、t. 2. Single Core Non-Sheathed Cables for Internal Wiring for a Conductor Temperature of 9OoC 2.1 Code designation H05V2-U with solid conductor H05V2-K with flexible conductor 2.2 Rated voltage 300 / SOOV 2.3 Construction 2.3. I Conductor Number of Conductors : 1 The conductor shall comply with the
21、requirements given in HD 383: Class 1 for solid conductors Class 5 for flexible conductors 2.3.2 Insulation The insulation shall be polyvinyl chloride compound of the type TI3, applied around each conductor. The insulation thickness shall comply with the specified value given in Part 7, Table I, col
22、umn 3. The insulation resistance at gO0C shall be not less than the values given in Part 7, Table I, column 5. 2.3.3 Overall diameter The mean overall diameter shall not exceed the upper limit given in Part 7, Table I, column 4. ED 21.7 S1 Page 5 2 Nominal cross- sectional areas of conductor mm 2.4
23、Tests 3 4 Insulation Mean overall thickness diameter specified upper limit mm mm value Compliance with the requirements of Part 7, Clause 2.3 shall be checked by inspection and by the tests given in Part 7, Table II. 2.5 Indication of origin and Temperature Marking In addition to the general require
24、ment of Part 1, Clause 3 a continuous marking indicating temperature shall be applied using symbol V2“ (indicating the maximum admissible conductor temperature) by printing, indenting or embossing on the insulation. 2.6 Guide to use See Appendix 1 to Part 1 of this HD. Table I General Data for Types
25、 H05V2-U and H05V2-K 1 Type of cable H05V2-U H05V2-K I I 0.5 0.75 1 1.5 2.5 0.6 0.6 0.6 0.7 0.8 2.4 2.6 2.8 3.3 3.9 0.5 0.75 1 1.5 2.5 0.6 0.6 0.6 0.7 0.8 2.6 2.8 3.0 3.5 4.2 5 Minimum insulation resistance at 90C Mohm. km 0.015 0.012 0.01 1 0.01 1 0.010 0.013 0.01 1 0.010 0.010 o. O09 HD*21.7*SL 90
26、 W 3404583 0003752 4 = i. 1 Ref. No. 1. 1.1 1.2 1.3 1.4 2. 2.1 2.2 2.3 3. 3.1 3.2 3.3 4. 5. 5.1 6. 7. 8. HD 21.7 S1 Table II Tests for type H05V2-U, and type H05V2-K 2 Tests Electrical tests Resistance of conductor Voltage test on completed cable at 2000V Insulation resistance at 90C Check of absenc
27、e of faults on insulation Provisions covering constructional & dimensional characteristics Checking of compliance with constructional provisions Measurement of thickness of insulation Measurement of overall diameter Mechanical properties of insulation Tensile test before ageing Tensile test after ag
28、eing Loss of mass test Pressure test at high temperature Tests at low temperature Bending test on insulation Heat shock test Thermal stability at 2OOOC Test under fire conditions Category of Test 4 15 Test method 21.2 21.2 21.2 21.2 21.1 21.2 21.2 505.1.1 505.1.1 505.3.2 505.3.1 505.1.4 505.3.1 505.3.2 405.1 i in: Clause 2.1 2.2 2.4 2.6 Inspection and manual tests 1.9 1.11 9.1 8.1 8.1 8.1 8.1 9.1 9 -
