1、3404583 0040b29 3 H 1992-05-26 RUI de Stasiart 35 - 8 1050 Bruxelles TI.: (+ 32 2) sQ.es.71 - FX: (+ 32 2) sts.es.1s Issue 1 TeIoton 206 2210087 - CENCEL - TX 172210097 HD 22.2 S2fA5 May 1992 I 1 Rubber insulated cables of rated voltages up to and including 450/750 V Part 2: Test methods Conducteurs
2、 et cbles isoles au caoutchouc, de tension assignee au plus egale 450/750 V Oeuxieme partie: Methodes dessais RO: IEC 245-2:1980 Isolierte Starkstromleitungen mit einer Isolierung aus Gummi mit Nennspannungen bis 450/750 V Teil 2: Prfverfahren Related ta Oirective: 731231EEC This amendment consists
3、of the following: - Title Page - Text prepared by CENELEC technical committee TC 20 date of ratification : 1992-03-24 date of announcement : 1993-01-01 date of latest publication : 1993-07-01 date of withdrawal : 1993-07-01 LIST OF NATIONAL STANDARDS IS GIVEN OVERLEAF HARMONIZED NATIONAL STANDARDS 3
4、QOi.1583 O040630 T HO 22.2 52:1992/A5:1992 AT : BE : CH : DE : OK : ES : SP (UNE 21-027-2 (Md.5) 1991 FI : FR : Gil : GR : IE : IS : Ir : LU : NL : NO : PT : SE : NOS No standard SP Standard in preparation NR Standard under revision HARMNIZATION DOCUMENT a Y DOCUMENT DHARMONISATION HARMONISIERUNGSDO
5、KUMENT - E 3404583 0040633 L HD 22.2 S21A5 May 1992 UDC 621.315.211.2.027.475.001.4 Descriptors: see HO 22.2 S2:1992 ENGLISH VERSION Rubber insulated cables of rated voltages up to and including 450J750 V Part 2: Test methods Conducteurs et cbles isoles Isolierte Starkstromleitungen au caoutchouc, d
6、e tension mit einer Isolierung aus Gummi assigne au plus gale 4501750 V mit Nennspannungen bis 450/750 V Deuxime partie: Mthodes Teil 2: Prfverfahren dessais This amendment modifies the Harmonization Document HO 22.2 S2:1992. It was approved by CENELEC on 1992-03-24. CENELEC members are bound to com
7、ply with the CEN/CENELEC Inernal Regulations which stipulate the conditions for implementation 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.
8、 This amendment exists in three official versions (English, French and German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
9、and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europaisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, 8-1050 Brussels 01 992 Copyright reserved to CENELEC members Ref. No. HO 22.2
10、 S2:1992/A5:1992 E 3404583 0040632 3 Page 2 HD 22.2 S2:1992/A5:1992 FOREWORD Following a decision taken by CENELEC Technical Committee TC 20, Electric cables, an amendment to HD 22.2 S2 was submitted to the CENELEC members for formal vote in November 1991. The text of the draft was approved by CENEL
11、EC as amendment A5 to HD 22.2 52 on 24 March 1992. The following dates were fixed: - latest date of announcement of the amendment at national level - latest date of publication of a harmonized national standard - latest date of withdrawal of conflicting national standards (doa) 1993-01-01 dop) 1993-
12、07-01 dow) 1993-07-01 HD 22.2 S2:1982 and its amendments A1:1989 up to A4:1992 inclusive were grouped into a reprint with reference HD 22.2 S2:1992. For products which have complied with HD 22.2 S2:1992 before 1993-07-01, as shown by the manufacturer or by a certification body, this previous standar
13、d may continue to apply for production until 1994-07-01. I 3404583 O040633 5 Page 3 HD 22.2 S2:1992/A5:1992 Amendment A5 to HD 22.2 S2 insert new Clause 8 8 : TEST FOR RESISTANCE TO HEAT OF TEXTILE BRAIDS 8.1 General This test applies to complete braided cables in HD22.4 S2, Clause 2 (H03RT-FI. The
14、test is designed to show that the textile braid has adequate resistance to heat. 8.2 Apparatus 8.2.1 Electrically heated cabinet with natural air flow. 8.2.2 A block, made of aluminium according to Figure 5, with smooth, flat surfaces. Surface finish in accordance with IS0 1302; Roughness class N 12
15、 mass of test piece m = (1000 2 50)s. 8.2.3 Steel base plate and upright, with guide rods, according to Figure 5, so designed that the aluminium block can slide between the guide rods without impediment and that any lateral tilting is avoided. 8.2.4 Timer, for xample stop-watch. 8.3 Sample The test
16、 sample shall be a length of complete cord, approximately 3OOmrn long. 8.4 Preparation The test sample shall be straightened and arranged as closely as possible to the mean longitudinal axis of the steel.base plate as shown in Figure 5, so that one end of the sample protrudes approximately 100mm fro
17、m the rear lead-in hole. The aluminium block, in accordance with Sub-clause 8.2.2, shall then be kept in the heating chamber, described in Sub-clause 8.2.1, at a temperature of (260 2 5)OC for at least 4 h.* 8.5 Test procedure Take the aluminium block out of the cabinet and immediately place it on t
18、he sample for 60(+3, -0)s. Subsequently, the aluminium block shall be removed from the sample. 8.6 Requirement The test is regarded as successful if the braid, or any component of the braid, does not show any melting or charring. Page 4 HD 22.2 S2:1992/A5:1992 W 3404583 O040634 7 a dimensions in ,m hole for steel base plate Fig. 5 Assembled test apparatus
