1、GENELEC Rue de Staseart. 35 - 1050 Bruxelles TI.: (+ 32 2) 518.68.71 - Fa: (+ 32 2) 519.69.19 Teletex 206 2210097 - CENCEL - TX 172210097 m 3404583 001,w723 mt INFORMATION HO 21.8 SI SHEET November I990 I Issue 1 1990-12-28 incorporating AM 1 Reprint December 1990 Polyvinyl chloride insulrted cables
2、 of rated voltages up to rnd including 450/750 V Single tor non-sheithed Crble for deCOr8tiVe ChrinS Conducteurs et cibles isols ru polychlorure de vinyle, de tension Leitungen mit Nennspannungen nominale ru plus gale a 450l750 V bis 450/750 V Huitimo partie: Conducteurs souples Teil 8: Einrdrige Le
3、itungen ohne pour guirlandes luminouses Hintel fr Lichtorketten Polyvinylchlorid-isolierte This Harmonization Document consists of the following: - Title Page Relrted to Directive: 73/23/EEC - Text prep8rd by CENELEC Technic81 Committee TC 20 date of ratification : 1990-09-11 date of announcement ;
4、1990-12-01 date of latest publication : 1991-06-01 date of withdrawal : 1991-06-01 LIST OF NATIONAL STANDARDS IS GIVEN OVERLEAF 3404583 0039474 5 HARMONIZED NATIONAL STANDARDS HO 21.8 S REPRINT AT : OE : CH : OE : DK : SP (SR 36-61 ES : FI : FR : GB : GR : IE : IS : IT : LU : NOS NL : NO : PT : SE :
5、 3404583 0019Y75 7 HD 21.8 S November 1990 A CENELEC Reprint December 1990 incorporating AM1 ENGLISH VERSION Rus de Stassart. 35 - 1050 Bruxelles Tl.: (+ 32 2) 519.68.71 - Fa: (+ 32 2) 519.69.19 Teletex 206 2210097 - CENCEL - Tx 172210097 . UDC 621.315.2S21.315.61 W38.743S28.974.6 Descriptors: EMcal
6、 hstallatlon, insulated de, flexibie cable, polyvinyl chbride, llghtkig chah Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 8: Single core non-sheathed cables for decorative chains Conducteurs et cbles isols au polychlorure de vinyle, de tension assigne au p
7、lus gale- 450/750 V Huitime partie: Monoconducteurs pour guirlandes lumineuses BODY OF THE HD The Harmonization Document consists of: - text prepared by CENELEC TC20 Pol yvin ylchlorid-isolierte Leitungen mit Nennspanningen bis 450/750 V Teil 8: Einadrige Leitungen ohne Mantel fr Lichterketten This
8、Harmonization Document was approved by CENELEC on 199CUl9-11. This Harmonization Dowment exists in three officiai versions (English, French, German). According to the CEWCENELEC Internal Regulations the CENELEC member National Committes are bound: to publish their new harmonized national standard by
9、 or before 1991-06-Q1, to withdraw all conflicting national standards by or before 1991-0601, Harmonized national standards are listed on the HD information sheet, which is available from the CENELEC National Committees or from the CENELEC Central Secretariat. The CENELEC National Committees are the
10、 national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Q Copyright resewed to CENELEC me- 3404583 001947b 9 W Page 2 HD 21.8 SI - REPRINT
11、1990 FOREWORD HD 21 was originally adopted by CENELEC on 9th July 1975. Edition 2 of HD 21 was implemented on 1 st January 1984, and at that 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
12、for test methods. This reprint of the 5 parts of Edition 2 of HD 21 incorporates all ratified amendments and the change to HD 505. The new parts 8 and 9 of HD 21, which are Edition 1 versions, are reprinted to incorporate their amendment and/or the change to HD 505. The issue of new Part 7 coincides
13、 with this reprint. HD 21 now has the following parts: HD 21.1 S2 - General requirements (with AM1, AM2, AM3 and AM4) HD 21.2 S2 - Test methods (with AM1) HD 21.3 S2 - Single core non-sheathed cables for fixed wiring (with AMI) HD 21.4 S2 - Sheathed cables for fixed wiring HD 21.5 S2 - Flexible cabl
14、es (cords) (with AMI, AM2 and AM3) HD21.6 - (Spare) HD 21.7 S1 - Single core non-sheathed cables for internal wiring (90 “C conductor temperature) HD 21.8 S1 - Single core non-sheathed cables for decorative chains (with AM1) HD 21.9 SI - Single core non-sheathed cables for installation at low temper
15、atures (with AMI) This Edition 1 of part 8 of HD 21 now incorporates: AM 1 - dop 1991 -06-01 References are made, in this Part 8 of HD 21, to other parts of this HD and to other Harmonisation Documents as follows: Conductors of insulated cables (Endorsing IEC 228 and 228A) Tests on electric cables u
16、nder fire conditions. Pari 1 : Test on a single vertical cable (Endorsing IEC 332-1) Common test methods for insulating and sheathing materials of electric cables (Endorsing IEC 81 1) HD 383 HD 405, 1 HD 505 In all cases a reference to another HD implies the latest edition of that document W 3404583
17、 0039477 O Page 3 HD 21.8 SI - REPRINT 1990 CONTENTS Page 1. Scope . 4 2. Single core non-sheathed cable for decorative chains 2.1 Code designation . 4 2.2 4 2.3 Construction . . . 4 2.4 Tests . . . . 4 2.5 Guide to use . 5 Rated voltage . . . . . . . . . . . . . . . . . 3. Single core insulated cab
18、les for indoor decorative lighting chains 3.1 Code designation . 6 3.2 6 3.3 Construction .a . 6 3.4 6 3.5 Guide to use . 6 Rated voltage . . . . . . . . . . . . . . . Tests . . . . . . . . . . . . . . . . W 3404583 0037478 2 Page 4 HD 21.8 SI - REPRINT 1990 Polyvinyl chloride insulated cables of ra
19、ted voltages up to and including 450/750V Part 8: Single core non-sheathed cables for decorative chains 1 2 2.1 2.2 2.3 Scope This Part 8 of the HD details the particular requirements for PVC insulated cables of rated voltages up to U,U300/500 V for use indoors as decorative chains. Each cable shall
20、 comply with the appropriate requirements given in Part 1 of this HD and the particular requirements of this Part 8. Single core non-sheathed cables for decorative chains Code designation HOSV-F. Rated voltage 300/500 V Construction 2.3.1 Conductor Number of Conductors : 1. The conductor shall compl
21、y with the requirements given in HD 383 for Class 5 conductors. 2.3.2 Insulation The insulation shall be polyvinyl chloride compound of the type T12, applied around each conductor. The insulation thickness shall comply with the specified value given in Table I, column 2 of this Part. The insulation
22、resistance at 70C shall be not less than the values given in Table I, column 4 of this Part. 2.3.3 Overall diameter The mean overall diameter shall not be more than the upper limit given in Table I, column 3 of this Part. 2.3.4 Core identification Bi-colours shall not be used. Preferred colour: gree
23、n 2.4 Tests Compliance with the requirements of clause 2.3 of this Part shall be checked by inspection and by the tests given in Table II of this Part. Page 5 HD 21.8 SI - REPRINT 1990 1 2.5 Guide to use See Appendix 1 to Part 1 of this HD. 2 3 4 i 1 Nominal cross-sectional areas of conductors Thick
24、ness Mean overall of insulation diameter specified value Upper limit Minimum insulation resistance at 70C mm2 0.5 0.75 mm mm Mo h m. km 0.8 3.0 0.01 6 0.8 3.2 0.014 Table II: Tests for Type HOW-F 1 Ref. No. - - 1. 1 .I 1.2 1.3 1.4 1.5 2. 2.1 2.2 2.3 3. 3.1 3.2 3.3 4. 5. 5.1 6. 7. 2 Tests Electrical
25、tests Resistance of conductors Voltage test on completed cable at 2000 V Insulation resistance at 70% Resistance of insulation to d.c. Absence of faults in insulation Provisions coverina constructional and dimencional characteristics Checking of compliance with constructional provisions Measurement
26、of thickness of insulation Measurement of overall diameter Mechanical rirorierties of insulation Tensile test before ageing Tensile test after ageing Loss of mass test Pressure test at hiah temrierature Tests at low temoerature Bending test for insulation Heat shock test Test under fire conditions 3
27、 Category of test Test method describec HD 21.2 21.2 21.2 21.2 21.2 21.1 21.2 21.2 505.1.1 505.1.2 505.3.2 505.3.1 505.1.4 505.3.1 405.1 n: Clause 2.1 2.2 2.4 2.5 2.6 Inspection and manual tests 1.9 1.11 9.1 8.1 8.1 8.1 8.1 9.1 - c= Page 6 HD 21.8 Si - REPRINT 1990 3 Single core insulated cables for
28、 indoor decorative lighting chains 3.1 Code designation H03VH7-H 3.2 Rated voltage 300/300 V 3.3 Construction 3.3.1 Conductor Number of conductors: 1. The conductor shall comply with requirements given in HD 383 for Class 6 conductors. 3.3.2 Insulation The insulation shall be polyvinyl chloride comp
29、ound of the Type T12, applied by dual extrusion around the conductor. The outer layer of insulation shall be a contrasting colour to that of the inner layer, but should adhere to the inner layer. The combined thickness of inner and outer layer of insulation shall comply with the overall thickness sp
30、ecified in Table III, columns 3 and 4 of this Part, but at no point shall the thickness of either layer be less than 0.2 mm. The insulation resistance at 70% shall be not less than the values given in Table III, column 5 of this Part. 3.3.3 Overall thickness The minimum and mean overall thickness sh
31、all comply with the values specified in Table 111, columns 3 and 4 respectively of this Part. 3.3.4 Cable identification Bi-colours shall not be used. Preferred outer layer colour: green. 3.4 Tests Compliance with the requirements of subclause 3.3 of this Part shall be checked by inspection and by the tests given in Table IV of this Part. 3.5 Guide to use See Appendix 1 to Part 1.
