इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 13573-2 (2011): Cable Accessories for Extruded Power Cables, Part 2: for Working Voltages for 3.3kV(UE) upto and Including 33kV(E) - Test Requirements [ETD 9: Power Cables] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 13573 (Part 2): 2011 Hkkjrh; ekud ,DlVª Mw sM ikoj ds cy ds fy, ds cy lgk;dkax fof'kf"V — Hkkx fd ok ¼;w bZ½ vkSj fd ok ¼bZ½ rd dh jsfVr 2 3.3 33 oksYVst — ijh{k.k i)fr;k¡ (igyk iqujh{k.k) Indian Standard CABLE ACCESSORIES FOR EXTRUDED POWER CABLES — SPECIFICATION PART 2 FOR WORKING VOLTAGES FROM 3.3 kV(UE) UP TO AND INCLUDING 33 kV(E) — TEST REQUIREMENTS (First Revision) ICS 29.060.20 ; 29.120.99 © BIS 2011 B U R E A U O F I N D I A N S T A N D A R D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 December 2011 Price Group 7 Power Cables Sectional Committee, ETD 09 FOREWORD This Indian Standard (Part 2) (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Power Cables Sectional Committee had been approved by the Electrotechnical Division Council. There are different methods followed for joints and terminations and the basic technique depends on the voltage rating of the power cable for which the accessories needs to be installed. This standard was first published as IS 13573:1992 ‘Joints and terminations of polymeric cables for working voltages from 6.6 kV up to and including 33 kV — Performance requirements and type tests’. This revision has been undertaken to bring it in line with international practices. It has been split up into three parts. Other parts in the series are: Part 1 For working voltages from 1.1 kV up to and including 3.3 kV(E) — Test methods and test requirements Part 3 For working voltages from 3.3 kV(UE) up to and including 33 kV(E) — Test methods The cable joints/terminations should normally have same electrical and thermal characteristics as the cable for which these are intended. As such this standard is to be used in conjunction with the following relevant Indian Standards: IS No. Title 1554 (Part 2) : 1988 PVC insulated (heavy duty) electric cables: Part 2 For working voltages from 3.3kV up to and including 11 kV (second revision) 7098 (Part 2):1985 Crosslinked polyethylene insulated PVC sheathed cables: Part 2 For working voltages from 3.3 kV up to and including 33 kV (first revision) 9968 (Part 2) : 1985 Elastomer insulated cables: Part 2 For working voltages from 3.3 kV up to and including 11 kV In the formulation of this standard assistance has been derived from IEC 60502-4:2005 ‘Power cables with extruded insulation and their accessories for rated voltages from 1kV(U = 1.2 kV) up to 30kV(U = 36 kV) — m m Part 4: Test requirements on accessories for cables with rated voltages from 6kV (U = 7.2 kV) up to 30kV(U m m = 36kV)’. This standard does not cover performance requirements of joints and terminations for paper insulated power cables and transition joints. The joints and terminations of power cables are normally made at site. For practical reasons, this standard is confined to type tests only. For tests at site, reference may be made to IS 1255:1983 ‘Code of practice for installation and maintenance of power cables up to and including 33 kV rating (third revision)’. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 :1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. IS 13573 (Part 2) : 2011 Indian Standard CABLE ACCESSORIES FOR EXTRUDED POWER CABLES — SPECIFICATION PART 2 FOR WORKING VOLTAGES FROM 3.3 kV(UE) UP TO AND INCLUDING 33 kV(E) — TEST REQUIREMENTS (First Revision) 1 SCOPE general qualities and design of a particular type of joint and/or termination. This standard (Part 2) covers the performance requirements and type tests for joints (straight joints 4 TEST SPECIMENS and branch joints), terminations, screened and unscreened separable terminations and stop ends for 4.1 The test specimens shall be made out of cables all designs of screened solid di-electric power cables which meet the relevant standards given in 2. for voltage grade from 3.3 kV (UE) up to and including 4.2 The test specimen shall be made in the testing 33 kV (E). laboratory by using the materials prescribed and in This standard does not apply to transition joints for accordance with the instructions of joint/termination dissimilar cables. kit (system) supplied by the manufacturer. The accessories kit shall be of the same nominal voltage as It is not necessary to repeat these tests, once the cable sample. successfully completed, unless changes are made in the materials, design or manufacturing process which 4.3 Number of joints and terminations shall be as per might affect the performance characteristics. the applicable test sequence (see Fig.1 to 5). 4.4 The test specimen shall be made out of cables of 2 REFERENCES any of the following nominal cross-sections: The following standards contain provisions, which 120 mm2 or 150 mm2 or 185 mm2 or 240 mm2 through reference in this text constitutes provision of this standard. At the time of publication, the edition 4.4.1 The cable of nominal cross-section of 240 mm2 indicated were valid. All standards are subject to and above shall be used for dynamic short circuit. revision and parties to agreements based on this standard are encouraged to investigate the possibility 4.4.2 Approval of a range of conductor cross-sectional of applying the most recent edition of the standards areas from 95 mm2 to 400 mm2 of one type of accessory indicated below: for both range taking and non range taking shall be obtained by successfully completing the full range of IS No. Title type tests of this standard as listed in Tables 2 to 6 on a 1885 (Part 32) : Electrotechnical vocabulary: Part 32 conductor cross-sectional area of 120 mm2 to 240 mm2. 1993 Electric cables Extension of approval to a range wider than that given 13573 (Part 3) : Cable accessories for extruded power above shall be achieved by carrying out the additional 2011 cables —Specification:Part 3 For tests listed in Table 7 on the smallest and/or largest working voltages from 3.3 kV (UE) conductor cross-sectional areas of the required range. up to and including 33 kV (E) — Test Approval of a range of conductor cross-sectional areas methods for a separable connector shall be obtained by 3 TERMINOLOGY successfully completing the full range of type tests of this standard, as listed in the Tables 5 and 6, on a For the purpose of this standard, the definitions given conductor cross-sectional area as indicated in Table 1. in IS 1885 (Part 32) and the following shall apply. In addition, the type tests listed in Table 7 shall be 3.1 Type Test — Tests carried out to prove conformity successfully completed on the smallest and/or largest with the standard. These are intended to prove the conductor cross-sectional areas in the range. 1 IS 13573 (Part 2) : 2011 Approval is independent of the cable conductor 5 TESTS AND EVALUATION material. Tests may therefore be carried out using 5.1 Type tests and their sequence with test conditions cables with either aluminium or copper conductors. and evaluation criteria shall be as per relevant tables 4.4.3 Test performed on three core accessories shall specified in Tables 2 to 6. be deemed to cover single core accessories of the same 5.2 If an accessory fails to meet the requirements due to design. The converse shall not apply. either installation or test procedure errors, the test shall 4.4.4 The details of the cable used for testing as given be declared void without discrediting the accessories. in Annex A are to be furnished in the test report. The complete test sequence shall be repeated on a new 4.5 The length of the test specimen between testing set of samples. terminal shall not be less than 8 m. The length between If there is no evidence of such error, the type of the joints and terminations shall not be less than 2m accessory is not approved. and the distance between joints shall not be less than 2m. If a cable fails beyond any part of an accessory, the test shall be declared void without discrediting the 4.5.1 For thermal/dynamic short circuit test a identical accessories. Test may be repeated using new cable of length not less than 2 m is to be connected in accessories (start testing from the beginning of the test series to the sample under test for ascertaining the sequence) or alternatively by repair of the cable temperature of the conductor at the end of short circuit. (continue testing from the point of break). Any damage on the dummy cable should not be recorded in the test report. The summary of the tests is given in Table 9. 4.5.2 Tests under Sl No. (xiii) and (xiv) of Table 2 may The summary of test voltages and requirements is given be performed on an additional test specimen which in Table 10. have not been previously subjected to other tests. Sampling procedures shall be as per Figs. 1 to 5. 4.6 Marking and Labelling 5.3 Optional Tests All the kits are to be suitably labelled for identification Special tests to be carried out, when required, by purpose with the following details: agreement between the purchaser and the supplier. a) Manufacturers name or logo and the name of the component, wherever feasible; 6 TEST ON CRITICAL COMPONENTS USED INJOINTS AND TERMINATIONS b) Product reference to be indicated on the kit; c) Manufacturing date and expiry date (if The following components form an additional kit (other applicable) to be indicated on the kit; and than the kits used for installation on cable) are required d) Safety marking and handling instructions, to be tested for following tests and test results to be wherever relevant to be indicated. recorded. The manufacturer should submit the guaranteed technical particulars for the items to be Inside the packing following shall be given: tested prior to taken up for testing along with the a) List of contents, and acceptable range for particular product to be type tested: b) Installation instructions including drawings or other information specific to the accessories. Sl Name of the Component Tensile Ultimate Di- Volume Permitiviy Resistivity/ Tracking No. Strength Elongation electric Resistivity Conductivity/ and Strength Resistance Erosion i) Insulating material X X X X — — — ii) Stress control material X X — X X — — iii) Anti-tracking material X X X X — — X iv) Conductive material: a) Metallic: lugs/ferrules — — — — — X — and earthing connection b) Non-metallic X X — X — — — 2 IS 13573 (Part 2) : 2011 s a e b all h s s e ori s s e c c a n e e w et b g n ci a p s e h d t n a d o h et m g S n N pi O clam NATI es MI ori ER ss T ce R ac O nd SF a E ble MPL ca A e S ops. Th EROF o B 2m. parate l NDUM > se N hould be d out on MENTSA cessories s y be carrie ARRANGE c a nlet points of the a accessories, 1.2 m F. 1 T IGEST The cable lengths measured between the cable i 1.2 may be combined with 1.3. For single-core recommended by the manufacturer. NOTES 1 Sample denotes the accessories under test. 2 See Table 2. 1) 2) 3 IS 13573 (Part 2) : 2011 s a e b all h s s e ori s s e c c a n e e w et b g n ci a p s e h t d n a d TS etho OIN m J g H n C pi N m A a R cl B ssories HTOR acce AIG and STR e R bl O a F s. The c MPLES p A oo S > 2m. separate l MBEROF be on NU uld out D ssories sho be carried MENTSAN acce may NGE et points of the ccessories, 2.2 2 T AESTRRA 1)The cable lengths measured between the cable inl 2)Testing of joints in separate loops is permitted. 3)2.2 may be combined with 2.3. For single-core arecommended by the manufacturer. NOTES 1 Sample denotes the accessories under test. 2 See Table 3. F. IG 4 IS 13573 (Part 2) : 2011 S D N E P O T S R O F S E L P M A S F O R E B M U N m. D 2 N be > TSA uld MEN ho E s G s N sorie RRA s A e cc T a S he TE oints of t F. 3 IG p et nl e cable i er test. h d n t un ured betwee accessories meas s the he cable lengths NOTES Sample denote1 2 See Table 4. T 1) 5