1、m 3404583 0143156 833 m CE 1?1 FI FC Rue de Stassan 35 - B - 1050 Bruxelles :EATION HO 21.8 S11A2 Polyvinyl chloride insulated cables of rated voltages up to and including 4501750 V Part 0: Single core non-sheathed cables for decorative chains Conducteurs et cables isoles au polychlorure de vinyle,
2、de tension assignee au plus egale a 450i750 V Partie 8: Honoconducteurs pour guirlandes lumineuses Polyvinylchlorid-isolierte Leitungen mit Nennspannungen bis 4501750 V Teil 0: Einadrige Leitungen ohne Mantel fur Lichterketten Related to Directive: 73123lEEC This amendment consists of the following:
3、 - Title Page - Text prepared by CENELEC Technical Committee TC 20 date of ratification : 1994-05-15 date of announcement : 1995-01-15 date of latest publication : 1995-07-15 date of withdrawal : 1995-07-15 LIST OF NATIONAL STANDARDS, IF ANY, IS GIVEN OVERLEAF W 3404583 0143157 77T W HARMONIZATION D
4、OCUMENT DOCUMENT DHARMONISATION HARHONISIERUNGSOOKUMENT HO 21.8 SJA2 June 1994 UOC 621.315.2:621.315.616-036.743:620.974.6 Descriptors: Electrical installation, insulated cable, flexible cable, polyvinyl chloride, lighting chain ENGLISH VERSION Polyvinyl chloride insulated cables of rated voltages u
5、p to and including 450f750 V Part 0: Single core non-sheathad cables for decorative chains Conducteurs et cables isols au polychlorure de vinyle, de tension assigne au plus gale i 5501750 V Partie 8: Monoconducteurs pour guirlandes lumineuses Polyvinylchlorid-isolierte Leitungen mit NWtntQannUngn bi
6、s 450/750 V - Teil 8: Einadrige Leitungen ohne Nantel fur Lichterketten This amendment A2 modifies the Harmonization Document HD 21.8 S1:1990. It was approved by CENELEC on 1994-05-15. CENELEC members are bound to comply with the CEN/CENELEC Inernal Regulations which stipulate the conditions for imp
7、lementation of this amendment on a national level. Up-to-date lists and bibliographical references concerning national implementation may be obtained on application to the Central Secretariat or to any CENELEC member. This amendment exists in three official versions (English, french and German). CEN
8、ELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization
9、 Comit Europen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung Central Secretariat: rue de Stassart 35, 8-1050 Brussels 01 994 Copyright reserved to CENELEC members Ref. No. HD 21.8 S1:1990/A2:1994 E Previous page is blank 3404583 OL43L58 bob W Tage 2 HD 21.8 S1:
10、1990/A2:1994 FOREWORD Following a decision taken by CZNELEC Technical Committee TC 20, Electric carles, dn amendment to HD 21.8 S1:1990 was submitted to the CENELEC Yesbers for formal vote in November 1993. TYr txt ?F the draft was spproced by CENELEC as amendment A2 to HD 21.8 S1 on 15 Kzy ;991. -7
11、 R.,. fo;lcwing dates were fixed: - latest date of announcement of the mendzent at national level (doa) :995-01-15 - la:est date of publication of 3 9arTonized national standard (dp) 1995-07-15 - latest date of withdrawal of sonflisting national standards !dou) 1995-07-15 For prG?dcts which have com
12、plled with HD 21.8 S1:1990 before 1995-07-15, as shown by the manufacturer or by a certification body, this previous stanard Tay continue to apply for production until 1996-07-15. Amendment A2 to HD 21.8 S1 Clause 1 . ScoDe Amend first sentence to read: This part (Pan 8) of the HO details the panicu
13、lar requirements for PVC insulated cables of rated .voltage UoiU 3OOl300V for use indoors as decorative chains. Clause 2 Delete Clause 2 completely. 3404583 0343359 542 Page 3 HD 21.8 S1:1990/A2:1994 Clause 3. Replace the text of clause 3 by: 3 Cinqle core insulated cables for indoor decorative Iiah
14、tina chains 3 1 Code destanation H03VH7-H 3.2 Rated volrase 3001300 V 3.3 Co nstruction 3 3 1 Conductor Number of conductors. 1 The conductor shall comply with requirements given in HO 383 for Class 6 conductors. 3.3.2 Insulation The insulation shall be polyvinyl chloride compound of the Type TI 2,
15、applied by dual extrusion around the conductor. The outer layer of insulation shall be a contrasting colour to that of the inner layer, but shall adhere to the inner layer. The minimum and mean overall values of the combined thickness of inner and outer layer of insulation shall comply with the over
16、all thickness specified in Table III, columns 3 and 4 of this Part, but at no point shall the thickness of either layer be less than .2mm. The insulation resistance at 7OoC shall be not less than the values given in Table III, column 5 of this Pan. 3.3.3 Cab le identification Bi-colours shall not be
17、 used. Preferred outer layer colour: green. 3.4 Compliance with the requirements of sub-clause 3.3 of this Pan shall be checked by inspection and by the tests given in Table IV of this Pan. 3.5 Guide to use See HD 516. 3404583 01431b0 2b4 = 1 2 3 4 Nominal cross- sectional areas of conductors mml Th
18、ickness of Overall thickness Overall thickness Insulation resistance each layer of Minimum value Mean value at 70C insulation Minimum value Minimum value mm Mohm.km mm mm - Table IV Tests for Tvoe H03VH7-H 0.5 0.75 - 1 3ef. NO. - 0.2 0.6 0.7 0.01 4 0.2 0.6 0.7 0.01 2 I. 1.1 1.2 1.3 1.4 1.5 2. 2.1 2.
19、2 2.3 2.4 3. 3.1 3.2 3.3 4. 5. 5.1 6. 7. - Elecrrical Tests Resistance of conductors Voltage test on completed cable at 2000V Insulation resistance at 7OoC (Note 1) Resistance of insulation to d.c. (Note 1) Absence of faults on insulation (Note 1) Constructionalldimensional characteristics Complianc
20、e with contructional provisions Measurement of insulation thickness of inner layer (min. only) Measurement of insulation thickness of outer layer (min. only) Measurement of overall thickness (Note 1) Mechanical DroDenies of insulation Tensile test before ageing (Note 1) Tensile test after aeeing (No
21、te 11 Loss of mass test (Note 1) Pressure test at hiah temDerature (Note 1 I Tests at low temoeraturg Bending test for insulation (Note 1) Heat shock test Note 1) Test under fire conditions 3 Category of test T, S T. S T. S T R T, S T. S T. S T, S T T T T T T T 4 I 5 II Tesr Method described in !I H
22、D 21.2 21.2 21.2 21.2 21.2 21.1 21.8 21.2 21.2 21.2 505.1.1 505.1.2 505.3.2 505.3.1 505.1.4 505.3.1 405.1 - Clause 2.1 2.2 2.4 2.5 2.6 Inspection and manual tests 3.3 i .9 1.9 1.9 9.1 8.1.3. 8.1 8.1 8.1 9.1 NOT I: Because of the simultaneous exfrusion of the same compound for both layers of insulation. the composite layer shall be tested as one layer and evaluated accordingly.
