HD 21 1 S2 A8-1994 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450 750 V Part 1 General Requirements《额定电压450 750 V(包括450 750 V)以下的.pdf

《HD 21 1 S2 A8-1994 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450 750 V Part 1 General Requirements《额定电压450 750 V(包括450 750 V)以下的.pdf》由会员分享，可在线阅读，更多相关《HD 21 1 S2 A8-1994 Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450 750 V Part 1 General Requirements《额定电压450 750 V(包括450 750 V)以下的.pdf（3页珍藏版）》请在麦多课文档分享上搜索。

1、CENELEC Rue de Stassan 35 - B - 1050 Bruxelles la.: (+32 2) 619 68 71 -FU: (+32 21 619 69 19 - =3 ?ORATIO SHEET I Issue 1 1994-04-27 Polyvinyl chloride insulated cables of rated voltages up to and including 4501750 V Part 1: General requirements HD 21.1 S2/M April 1994 Conducteurs et cbles isols au

2、polychlorure de vinyle, de tension assigne au plus gale 4501750 V Premire part ic : Prescriptions gnrales Polyvinylchlorid-isolierte Leitungen nit Neaaspannungen bis 450/750 V Teil 1: Allgemeine Anforderungen Related to Directive: 73/23/EEC This arneni;T.sc: consists of the following: - Title Page -

3、 Text prepared by CENELEC Technical Committee TC 20 date of ratification : 1993-12-08 date of announcement : 1994-06-01 date of latest publication : 1994-12-01 6a:e of wit3drawal : 1994-12-01 LZS? O? NATIONAL STANDARDS, IF APY, IS GIVE!; OVERLEAF i Reproduced with perrnissicn of the Copyright tiolde

4、r , Further eproductlon is in viriatioii of co;y:igf;t ias. m 3404583 0343672 389 m HARMONI7ATION DOCUMENT DOCUMENT DHARMONISATION HARMONISIERTJNGSDOKUMENT HD 21.1 S2/A8 April 1994 UDC (621.315.211.2+621.315.32)027.475-036.743.22-777.001.2.0022 (083.71) (083.73) Descriptors: see HD 21.1 S2:1990 ENGL

5、ISH VERSION Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 1: General requirements Conducteurs et cbles isolis au polychlorure de vinyle, de tension assigne au plus gale 8 450/750 V Premire partie: Prescriptions gnrales Polyvinylchlorid-isolierte Leitungen m

6、it Nennspannungen bis 450/750 V Teil 1: Allgemeine Anforderungen This amendment modifies the Harmonization Document HD 21.1 S2:1990. It was approved by CENELEC on 1993-12-08. CENELEC members are bound to comply with the CEN/CENELEC Inernal Regulations which stipulate the conditions for implementatio

7、n of this amendment on a national levei. Up-to-date lists and bibliographical references concerning national implementation may be o5tained on application to the Central Secretariat or to any CENELEC member. This amendment exists in three official versions (English, French and German). CENELEC membe

8、rs are the national electrotechnical committees of Austria, Belgiurr, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Unite2 KingCion. CENELEC European Committee for Electrotechnica? Standardization CorLite

9、 Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 01994 Copyright reserved to CENELEC members Ref. No. HD 21.1 S2:1990/A8:1994 E Previous page is blank 3404583 0143693 215 Page 2 HD 21.1 S2:1990/A8:199

10、4 FOREWORD At the request of the CENELEC Technical Committee TC 20, Electric cables, a draft for an amendment to HD 21.1 S2:1990 was submitted to the CENELEC members for formal vote in May 1993. The text of the draft was approved by CENELEC as amendment A8 to IID 21.1 S2 on 8 December 1993. The foll

11、owing dates were fixed: - latest date of announcement of the amenment at national level (doa) 1994-06-01 - latest date of publication of a harmonized national standard - latest date of withdrawal of conflicting national standards (dopl 1994-12-01 (80w) 1994-12-01 For products which have complied wit

12、h ED 21.1 S2:1990 and its amendments A5:1990, A6:1991, A7:1992, A9:1993 and A12:1993 before 1994-12-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1995-12-01. Sub-clause 5.5.2 ApDlication Delete first line and substitute

13、: The sheath shall be extruded as an homogeneous layer. New Sub-clause 5.5.5 Colour Where the sheath is coloured, the colour shall be throughout the whole of the sheath or on its surface. Where surface colouring is applied, the surface colour shall be of essentially the same material as the underlying material and shall be applied as part of the extrusion process. The surface colour shall not be separable from the underlying material and shall be durable.