HD 22 2 S2 A11-1995 Rubber Insulated Cables of Rated Voltages up to and Including 450 750 V Part 2 Test Methods《额定电压450 750 V及以下的橡胶绝缘电缆 第2部分 试验方法》.pdf

1、HARMONIZATION DOCUMENT HD 22.2 S2lAIl DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT June 1995 UDC 621.31 5.21 1.2.027.475.001.4 ICs 29.060.20 Descriptors: See HD 22.2 52:1992 English version Rubber insulated cables of rated voltages up to and including 450/750 V Part 2: Test methods Conducteurs et

2、 cbles isols au caoutchouc, de tension assigne au plus gale 450/750 V Partie 2: Mthodes dessais Isolierte Starkstromleitungen mit einer Isolierung aus Gummi mit Nennspannungen bis 450/750 V Teil 2: Prfverfahren This amendment Al 1 modifies the Harmonization Document HD 22.2 S2:1992; it was approved

3、by CENELEC on 1995-05-1 5. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for implementation of this amendment on a national level. Up-to-date lists and bibliographical references concerning such national implementation may be obtained on

4、application to the Central Secretariat or to any CENELEC member. This amendment 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, Luxembour

5、g, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassari 35, B - 1050 Brussels

6、 1995 Copyright reserved to CENELEC members Ref. No. HD 22.2 S2:1992/A11:1995 E Page 2 HD 22.2 S2: 1 992/A11: 1995 Foreword This amendment was prepared by the Technical Committee CENELEC TC 20, Electric cables. L The text of the draft was submitted to the Unique Acceptance Procedure and was approved

7、 by CENELEC as amendment Al 1 to HD 22.2 S2:1992 on 1995-05-1 5. The following dates were fixed: - latest date by which the existence of the amendment has to be announced at national level (doa) 1996-01 -01 - latest date by which the amendment has to be implemented at national level by publication o

8、f a harmonized national standard or by endorsement (dop) 1996-07-01 - latest date by which the national standards conflicting with the amendment have to be withdrawn (daw) 1996-07-01 For products which have complied with HO 22.2 S2: 1992 and its amendments A5: 1992, A6:1992, A7:1992, A8:1993 and A9:

9、1993 before 1996-07-01, as shown by the manufacturer or by a certification body, this previous standard may continue to apply for production until 1997-07-01. c b CENELEC HD*:22.2 S2/ALL 95 3404583 0254497 994 W Page 3 HD 22.2 S2:1992/A11: 1995 Sub-clauses 2.4.1 Modify first paragraph of the sub-cla

10、use as follows: This test shall be made on the core samples, 5m long, previously submitted to the test described in sub- clause 2.3 of this Part of HD 22 or, if this is not applicable, to the test described in sub-clause 2.2 of this Part of HD 22. Delete all the text from the beginning of the sixth

11、paragraph to the end of the clause. Add a note to the bottom: This test applies only when required by the particular part of this HD. Sub-clause 2.5 Insert new sub-clause as follows: 2.5 Lona term resistance of insulation to direct CU rrent This test shall be made on samples of core 5m long, after r

12、emoval of any covering. The samples shall be immersed in an aqueous solution of sodium chloride at about 10 g/litre, brought to the specified temperature. A length of about 0.25m at each end of the sample shall be kept above the solution. A voltage of 220V D.C. shall be applied between the conductor

13、s1 of each sample, connected to the negative pole, and copper electrode immersed in the solution, connected to the positive pole. The temperature of the solution and the duration of the applied voltage shall be as specified in Part 1, Table 111. After the test, the exterior of the insulation should show no damage. NOTE: Discolouration of the insulation should be ignored.