1、. . E 3404583 00352b 7 E - 7- CENELEC Rus de Stassart. 35 - 1050 Bruxsllsa Teletex 206 2210097 - CENCEL - Tn 172210097 T DIN VOE 0472 Teil 402105.84; DIN VOE OC72 Teil 501104.63; DIN VOE OC72 Teil 506105.86; OIN VOE O472 Teil 602)08,83; DIN VDE OC72 Teil 603/11.83; OIN VOE 0472 Teil 605101.85; DIN V
2、OE 0472 Teil 606/08.83: DIN VOE 0472 Teil 625101.83; DIN VDE 0472 Teil 804/08.83 OK : NR (SR 37-21 ES : UNE 21-027-91 Parte 2 FI : E HO 22.S2-84 FR : NF C 32-102 (1984) GB : 8s 6007 : 1983; 8s 6360 : 1981; BS 6469 : 1984; BS 6500 : 1984 GR : ELOT 623.2-1987 I : IS : IST L 104:1991 IT : CE1 20-19 (19
3、90) LU : NOS NL : NEN 3622 11984) NO : NEMKO 181.2/84 SE : SS 424 02 35-2 (1985) NOS No standard SP Standard in preparation NR Standard under revision HARMONIZATION DOCUMENT HD 22.2 S2 DOCUMENT DHARMONISATION HARMONISIERUNGSDOKUMENT May 1992 Reprint incorporating AI to A4 UDC 621.31 5.21 1.2.027.475
4、.001.4 , Descriptors: Conductor, cable, flexible cable, rigld cable, single core cable, milticore cable, conductor materlai, flat cable, compound, polychloroprene, rubber, elastomer, insulation compound, type test sample test, mutine test, nominal voltage, mark, common marking, identification, cdour
5、 scheme, consirudon, insulation, separator, filler, sheath, braid, Inner layer, outer layer, thickness, man value, specified value, electrical resistance, test, tensile strength, elongation at break, ageing, air oven, oxygen bomb, hot set, complete cable, overall dlmensions, bending, exlng, voltage
6、test, absence of short circuits, spark (test), insulation resistance, wear resistance, test (under) fire (conditions), gukle to use, solderatilily test English version Rubber insulated cables of rated voltages up to and including 450750 V Part 2: Test methods (I EC 245-2: 1 980, modified) Conducteur
7、s de cbles isols au caoutchouc de tension assigne au plus gale 45050 V Deuxime partie: Mthodes dessais . Teil 2: Prfverfahren (CE1 245-2:l 980, modifie) Isolierte Starkstromleitungen mit einer Isolierung aus Gummi mit Nennspannungen bis 45050 V (IEC 245-2:i 980, modifiziert) This Harmonization Docum
8、ent was approved by CENELEC on 23 September 1991. CENELEC members are bound to comply with the CEWCENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document on a national level. Up-to-date lists and bibliographical references concerning national imp
9、lementation may be obtained on application to the Central Secretariat or to any CENELEC member. This Harmonization Document exists in three official versions (English, French, German). CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany
10、, Greece, Iceland, Ireland, Italy, Luxembourg, Netheriands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Centrai Secret
11、ariat: rue de Sassart 35, B - 1 O50 Brussels O 1992 Copyright reserved to CENELEC members Ref. No. HD 22.2 S2:1992 E 81 3404583 0835272 7 Page 2 HD22.2 S2 - REPRINT 1992 I ? 1 FOR E WO R D HD22 was originally adopted by CENELEC on 9th July 1975, Edition 2 of HD22 was implemented on 1 st January 1984
12、, and at that time contained 4 parts. Since 1984, new parts have been published, original parts amended, and in addition HD 505 has superseded HD 385 as the cross-reference for test methods, This reprint of the 4 parts of Edition 4 of HD22 incorporates all ratified amendments and the change to HD 50
13、5. The new parts of HD22, which are Edition 1 versions, already incorporate the change to HD 505 and are being updated as appropriate. HD22 now has the following parts: HD22.1 S2 - General requirements (with AM1 to AM10 inclusive) HD22.2 S2 - Test methods (with AM1 to AM4 inclusive) HD22.3 S2 - HD22
14、.4 S2 - HD22.5 - (Spare) HD22.6 S1 - Arc welding cables HD22.7 S1 HD22.8 S1 Heat resistant silicone rubber insulated cables (with AM1) Cords and flexible Cables (with AM1 to AM5 inclusive) - - Cables with increased heat resistance for internal wiring for a conductor temperature of 110% Polychloropre
15、ne or equivalent synthetic elastomer sheathed cable for use as decorative chains (AM11 This Edition 2 of part 2 of HD22 now incorporates: AM1 - dop 1990-06-01 AM2 - dp 1990-1 2-01 AM3 - dp 1991-06-15 AM4 - dop 1993-01-01 In accordance with the guidance given by CENELEC the dop for this Reprint is 19
16、99-01-01. References are made, in this Part 2of HD22, to other Parts of this HD and to other Harmonisation Documents and International Standards as follows: HD 405.1 Tests on electric cables under fire conditions. Part 1: Test on a single vertical cable (Endorsing IEC 332-1) HD 505 Common test metho
17、ds for insulating and sheathing materials of electric cables (Endorsing IEC 81 1) IEC695-2-2 Fire hazard testing : Needle flame test In all cases a reference to another HD implies the latest edition of that document. 1. 2. 3. 4. 5. 6. 7. CI 3404583 0035273 9 W Page 3 HD22.2 S2 - REPRINT 1992 CONTENT
18、S - PAGE General 1.1 Scope 1.2 Applicable tests 1.3 1.4 Sampling 1.5 Pre-conditioning 1.6 Test temperature 1.7 Test voltage 1.8 1.9 Measurement of insulation thickness , 1 .l O 1.1 1 1.12 Classification of tests according to the frequency with which they are carried out Checking of the durability of
19、 colours and markings Measurement of sheath thickness Measurement of overall dimensions and ovality Solderability tests for untinned conductors Electrical tests 2.1 Electrical resistance of conductors 2.2 2.3 Voltage test on cores 2.4 Insulation resistance 2.5 Spare 2.6 2.7 Surface resistance of she
20、ath Voltage test on completed cables Test to check the absence of faults on insulation Tests of mechanical strength of completed flexible cables 3.1 Flexing test 3.2 Static flexibility test . 3.3 Wear resistance test (Spare) Test for resistance to hot particles Hot set test for insulation and sheath
21、 Ozone resistance test 7.1 General 7.2 Method of test 7.3 Method B Appendix 1 Procedure for checking the efficacy of the method of spark testing 4 4 4 4 4 4 5 5 5 6 6 7 10 11 11 15 17 18 19 19 19 19 22 E 3404583 0035274 O E Page 4 HD22.2 S2 - REPRINT 1992 RUBBER INSULATED CABLES OF RATED VOLTAGES UP
22、 TO AND INCLUDING 450/750V Part 2 : Test Methods 1. General 1.1 ScoDe HD22 applies to rigid and flexible cables with insulation and sheath, if any, based on vulcanised rubber, of rated voltages Uo/U up to and including 450/750V used in power installations of nominal voltage not exceeding 450/750V A.
23、C. This Part 2 specifies the methods of carrying out the tests specified in HD22 in conjunction with other Harmonisation Documents HD405 Part 1 and HD505. General Requirements are specified in HD22 Part 1, Particular types of cable are specified in HD22 Part 3 onwards, and are hereafter referred to
24、as “the particular specifications“. 1.2 Amlicable Tests The tests applicable to the types of cables are given in the particular specifications. 1.3 Classification of Tests accordina to the freauencv with which thev are carried out The tests specified are type tests (Symbol T) and/or sample tests (Sy
25、mbol S) and/or routine tests (Symbol R) as defined in Part 1, Sub-clause 2.2, The Symbols T, S and R are used in the relevant tables of the particular specifications. 1.4 Samding if a marking is indented in the insulation or sheath, the samples used for the tests shall be taken so as to include such
26、 marking. For multicore cables, except for the test specified in Part 2 Sub-clause 1.9, not more than three cores (of different colours, if available) shall be tested unless otherwise specified. 1.5 Pre-conditioning All the tests shall be carried out not less than 16 h after the vulcanization of the
27、 insulating or sheathing compounds. 1.6 Test TemDeraturQ Unless otherwise specified, tests shall be made at ambient temperature. = 3404583 0035275 2 - . Page 5 HD22.2 S2 - REPRINT 1992 1.7 Test Voitaag Unless otherwise specified, the test voltages shall be A.C. 49Hz to 61 Hz of approximately sine- w
28、ave form, the ratio peak value/r.m.s. value being equal tofiwith a tolerance of 7% The values quoted are r.m.s. values. 1,8 Checkina of the Durabilitv of colours and markinas Compliance with this requirement shall be checked by trying to remove the marking of the manufacturers name or trademark and
29、the colours of cores or numerals by rubbing lightly ten times with a piece of cotton wool or cloth soaked in water. 1.9 Measurement of Insulation Thickness 1.9.1 Procedurg The thickness of insulation shall be measured in accordance with Sub- clause 8.1 of HD505.1.1. One sample of cable shall be take
30、n from each of three places, separated by at least lrn. Compliance shall be checked on each core of cable. If withdrawal of the conductor is difficult, it shall be stretched in a tensile machine or the piece of core shall be immersed in mercury until the insulation becomes loose. 1.9.2 Evaluation of
31、 results The mean of the 18 values (expressed in millimetres) obtained from the three pieces of insulation from each core shall be calculated to two decimal places and rounded off as given below, and this shall be taken as the mean value of the thickness of insulation. If in the calculation the seco
32、nd decimal figure is 5 or more, the first decimal figure shall be raised to the next number; thus for example, 1.74 shall be rounded to 1.7 and 1.75 to 1.8. The lowest of all values obtained shall be taken as the minimum thickness of insulation at any place. This test may be combined with any other
33、measurements of thickness, for instance those of Part 1, Sub-clause 5.2.4. 34t34583 O035276 4 0 I Page 6 HD22.2 S2 - REPRINT 1992 1.1 O Measurement of Sheath Thickness 1.10.1 1 *10.2 Procedure The thickness of the sheath for circular cables shall be measured in accordance with Sub-clause 8.2 of HD50
34、5.1.1. One sample of cable shall be taken from each of three places, separated by at least 1 m. Evaluation of resulta The mean of all the values (expressed in millimetres) obtained from the three pieces of sheath shall be calculated to two decimal places and rounded off as given below, and this shal
35、l be taken as the mean value of the thickness of sheath. If in the calculation the second decimal figure is 5 or more, the first decimal figure shall be raised to the next number; thus for example, 1.74 shall be rounded to 1.7 and 1.75 to 1,8. The lowest of all values obtained shall be taken as the
36、minimum thickness of sheath at any place. This test may be combined with any other measurements of thickness, for instance those of Part 1, Sub-clause 5.54. 1.1 1 Measurement of Overall Dimensions and Ovality . The three samples taken in accordance with Part 2, Sub-clause 1.9 or 1.1 O shall be used.
37、 The measurement of the overall diameter of any circular cable and of the overall dimensions of flat cables with a major dimension not exceeding 15mm shall be carried out in accordance with Sub-clause 8.3 of HD505,l. 1. For the measurement of flat cables with a major dimension exceeding 15mm, a micr
38、ometer, a profile projector or similar equipment shall be used. The mean of the values obtained shall be taken as the mean overall dimensions. For checking the ovality of circular sheathed cables, two measurements shall be made at the same cross-section of the cable, covering the maximum and minimum
39、 values. 3404583 0035277 b Page 7 HD22.2 S2 - REPRINT 1992 1 .12 Solderabilitv test for untinned conductora 1.1 2.1 Aim of the test The test is intended to assess possible interaction between insulation and bare copper conductor. 1.12.2 Pre-selection of samdea The test shall not be carried out until
40、 the normal ageing test in the air oven has been completed. When the normal ageing test in the air oven has been completed, the conductors of the test samples shall be examined. If there is no blackening of the conductors no further action is required. If the conductors are blackened, the normal age
41、ing test in the air oven shall be repeated on new samples, except that the ageing conditions shall be seven days at (70 f aC. At the end of this ageing period the conductors shall be examined, and if there is no blackening no further action is required. If the conductors are blackened, carry out the
42、 test described in 1.1 2.3 to 1.1 2.6 below. 1.1 2.3 Selection of samdes and meDaration of test Dieces 1.12.3.1 One sample having a length suitable for the bending test defined below is taken at three points in the cable, and the cores in each sample are carefully separated from all other components
43、. 1.1 2.3.2 Each sample of core thus obtained is wound, in three turns, on a mandrel, the diameter of which is three times that of the core. The sample is then unwound and straightened out, whereupon it is wound again in such a way that the fibre which was compressed to the first case becomes the st
44、retched fibre in the second. This cycle of operations is repeated two more times, which represents three bending operations in one direction and three in the other. 1.1 2.3.3 From each sample of core which has been straightened out after the third cycle of bending operations, a test piece having a l
45、ength of about 15 cm is taken from that part of the core which has actually been wound. Each test piece is then subjected to accelerated ageing in a hot-air oven for 168 h at a temperature of (702pC. After this accelerated ageing, the test pieces are left at ambient temperature for at least 16 h. Th
46、en each test piece is stripped at one end over a length of 60 mm and is subjected to the solderability test by the solder-bath method described below. 1.1 2.4 Descrimion of the solder bath The solder bath shall have a volume sufficient to ensure that the temperature of the solder remains uniform at
47、the moment when the conductor is introduced. It shall be provided with a device which maintains the temperature of the solder at(270+10)0C. ?age 8 HD22.2 S2 - REPRINT 1992 The height of the solder bath shall be at least 75 mm, The visible surface area of the bath shall be reduced as far as possible,
48、 by using a perforated plate of heat resisting material in order to protect the core against direct radiation from the bath. The composition of the solder shall be tin (between 59.5% and 61 -5%) and lead. Impurities (as a percentage of the total mass) shall not exceed: Antimony 0.50 Zinc 0.005 Bismu
49、th 0.25 Aluminium 0.005 Copper 0.08 Others 0,080 Iron 0.02 1,12.5 Test Drocedurq The surface of the solder bath shall be kept clean and shining. After immersion for 1 O seconds at ambient temperature in a pickling bath constituted by a solution of zinc chloride in water (ZnCI being 10% of the total mass), the bared end of each test piece shall be immersed in the solder bath over a length of 50 mm in the direction of its longitudinal axis. The speed of immersion is 2525 mm/s. The duration of immersion is 5+0,5 s. The speed of emergence is 2525 mmls. A
