IS 5831 (1984): PVC insulation and sheath of electric cables

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2 > 0 B Bhart hari N ti atakam Knowledge is such a treasure which cannot be stolen Invent a New India Using Knowledge IS 5831 (1984): PVC insulation and sheath of electriccables [ETD 9: Power cables ]Indian StandardSPECIFICATION FORPVC insulation AND sheath OFELECTRIC cables ( First Revision )Fourth Reprint JANUARY 1998 UDC [ ]BUREAU QP INDIANBTANDARDIMANAlL EHAVAN, 9 BAHADUR SHAH ZAPAR INAltO-NEW DELHI 110002s#pmbn 1984 IS : StandardSPECIFICATION FORPVC insulation AND sheath OFELECTRIC cables ( First Revisiop )Power cables Sectional Committee, ETDC 59 ChairmanSEIRI M. L. DON~REM-3, Satyam,88, Sion Circle, BombayMembersSHRI J. P. ANALSHRI B. P. RAI ( Alternate)SHRI M. R. BEATSHRI D. K. BASU ( Alternate )Represent&gBharat Heavy Electricals Ltd, HyderabadTata Consulting Engineers, BombayCHIEF ENGINEER ( ELECTRICAL ) ICentral Public Works Department, New DelhiSURVEYOR o FWORKS( ELECT ) V ( Alternate )DR K.

3 DAS GUPTAC alcutta electric Supply Corporation ( India )Ltd, CalcuttaSHRI P. NEOQI ( Alternate )DIRECTORSHRI M. C. RATRA (Alternate )DIRECTOR OR MINESSAFETY( ELECT ) ( HQ )DIRECTOR OF, MINESSAFZTY( ELECT ) ( Alternate )SHRI RAVI K. DUTTC entral Power Research Institute, BangaloreDirectorate General of Mines Safety, DhanbadSHRI S. R. SARAN ( Alternate )Cable and Conductor Manufacturers Associationof India, New DelhiSIIRI P. GrrosuIndian Cable Co Ltd, JamshedpurCable Corporation of India Ltd, Bombay\SHRI K. V. R. Rao ( Alternate )SHRI M. M. H~NAVARSIIRI S. R. PAUMAN~BHAN ( Alternate JSI~I D. K. JAIND irectorate of Technical Development & Produc-tion ( Air ), New DelhiSIII~I V. K. Snanaa~ ( Alternate )SIII<I K. S. JosrrrBombay Suburban electric Supply Ltd, BombaySrirtr R.)

4 K. Ssaoa~ ( Alternate )( Continued on page 2 )@ CoPYright 1984 BUREAU OF INDIAN STANDARDSThis publication is protected under the Indian Copyright Act (XIV of 1957 ) andreproduction in whole or in part by any means except with written permission of thepublisher shall be deemed to be an infringement of copyright under the said Act. IS:!X?l- 1984( Continuedfrom page 1 )MembersRepresentingSHRI S. L. KAKRARU niversal cables Ltd, SatnaSHRI R. C. AQRAWAL ( Alternate )SHRI RAJ K. MITALD elhi electric Supply Undertaking, New DelhiSHRI V. K. SAEHUJA (Alternate )SHRI R. V. NARAYANAND irectorate General of Supplies & DisposalsSHRI D. R. CHANDRA ( Altevuzte )( Inspection Wing ), New DelhiSHRI H. M. PAIThe Federation of Electricity Undertakings ofIndia, BombaySEEIMATI C.

5 BALI~A ( Alternate )SHRI S. N. PARWALThe Premier Cable Co Ltd, Eranakulam( Kerala )SHRI A. K. RA~ANAsian cables Corporation Ltd, BombaySHRI S. M. SAEHALKARB ombay electric Supply & Transport Under-taking, BombaySHRI S. V. UPASANI ( Alternate )SHRI L. K. SAN~HIFort Gloster Industries Ltd, HowrahSHRI A. S. BZIATTACHARJEE ( Alternate )LT-COL S. R. SENC ontrollerate of Inspection Electronics, BangaloreSHRI S. K. MALHOTRA C Alternate )DR M. S. SUKIIIJAP unjab Research Institute, RajpuraSHRI U. S. VERMAN ational Test House, CalcuttaSRRI R. RAI~AERISIXNA ( Alternate )SHRI K. G. WARRIERO riental Power cables Ltd, KotaSHRI B. K. MUNDHRA ( Alternafc)SHRI S. P. SAC~DEV,Director General, IS1 ( Ex-o&id Mumber )Director ( Elec tech )SecretarySHRI K.

6 M. BHATIAS enior Deputy Director ( Elec tech ), IS1 Panel for Elastomeric and Thermoplastic cables , ETDC 59 Gloster Industries Ltd, HowrahSHRI A. S. BHATTACHARJEE ( Alternale toShri L. K. Sanghi )SHRI B. ROY CHOWDHURYThe Calcutta electric Supply Corporation( India ) Ltd, CalcuttaSHRI P. NEO~I ( Alternate )SHRI P. GHOSRI ndian Cable Co Ltd, JamshedpurSHRI K. V. R. RAO (Alternate )SHRI M. M. HONAVARC able Corporation of India Ltd, BombaySRRI S. R. PADMANABHAN ( Alternate )SHRI S. L. KAKKARU niversal cables Ltd, SatoaSHRI R. C. AORAWAL ( Altsmafe )SHRI J. V. MEHTAThe Ahmedabad Electricity Co Ltd, AhmadabadSHRI B. K. MIJNDHRAO riental Power cables Ltd, KotaSHRI A. S. PINTOD elhi Electricity Supply Undertaking, New DelhiSHRI S. R. SARANI ndustrial cables ( India ) Ltd, Rajpura2 IS:5831-1984 Indian StandardSPECIFICATION FORPVC insulation AND sheath OFELECTRIC cables ( First Revision)0.

7 This Indian Standard ( First Revision ) was adopted by the IndianStandards Institution on 30 April 1984, after the draft finalized by thePower cables Sectional Committee had been approved by the Electro-technical Division This standard was originally published in 1970 with d view to bringunder a single cover the various requirements for PVC insulation andsheath of different types of This revision has been undertaken to update it in the li~llt of furtherexperience and developments and to align with international practice,where appropriate. Details about methods of test have been, by and large,taken out from this standard and are now covered in a separate standard,to which reference has been made at appropriate This standard is complementary to the individual specification fordifferent types of In preparing this standard, considerable assistance has been derivedfrom IEC Publication 502 ( 1983 ) Extruded solid dielectric insulatedpower cables for rated voltages from 1 kV up to 30 kV , issued by theInternational Electrotechnical Commission ( IBC ).

8 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value,observed or calculated, expres-sing the result of a test shall be rounded off in accordance with IS : 2-1960*.The number of significant places retained in the rounded off value shouldbe the same as that of the specified value in this standard.*Rules for rounding off numerical values ( revised ).3 IS : 5831. 19841. This standard specifies the physical and electrical requirements forPVC insulation and sheath of electric The types of PVC compounds covered by this standard are givenbelow:Type AGeneral purpose insulation for maximum rated conductortemperature 70 C intended for cables with rated voltagesU,/U up to and including BGeneral purpose insulation for maximum rated conductortemperature 7OW intended for cables with rated voltagesU,/U above CHeat resisting insulation for maximum rated conductortemperature 85 C intended for cables with rated voltagesup to and including 1 100 ST1 General purpose sheath intended for use in cables oper-ating at a maximum rated conductor temperature 70 ST2 Heat resisting sheath intended for use in cables oper-ating at a maximum rated conductor temperature 90 For the purpose of this standard, the definitions given in IS.

9 1885( Part 32 )-1971* shall apply, in addition to the Variation - Difference between the median value obtained afterageing and the median vaIue obtained without ageing, expressed as apercentage of the The insulation or sheath shail consist of a compound based on one ofthe following materials, which have been suitably compounded and pro-cessed to meet the requirements of this standard:a) Polyvinyl chloride ( PVC ),b) Suitable co-polymers of which the major constituent shall be vinylchloride,c) Mixture of (a) and (b).4. TEST The insulation and sheath shall satisfy the test requirements stated inTables 1 and 2 respectively, to the extent specified in the relevant cablestandard.+Electrotechnical vocabulary : Part 32 cables , conductors and accessories for electricSUPPlY -4 IS : 5831 - 1984 TABLE 1 TEST REQUIREMENTS FOR PVC insulation ( c1uusc )SLTESTUNITTYPE OF INSULATIONMETHODNo.

10 ~~~~~h~_~~~~OB TESTABC~zz?G:.OB IS:10810+ )(1)(2)i) volume resistivity, Mina) at 27 C ($81 Note 1 )b) at maximumratedtemperature ( ice )ii) insulation resistance cons-tant, Mina) at 27*C ( see Note 1 )b) at maximum ratedtemperature ( )iii) Without ageinga) Tensile strength, Minb) Elongation at break,Miniv)After ageing in air ovenf Tempera-1 ture (tole-a) Treatment { ranceI rt2 C)[Durationb) Tensile strength1) gfiue after ageing,2) Variation, Maxc) Elongation at break1) Vr&ue after ageing,2) Variation, Maxv)Loss of mass in air oven[Tempera-1 tllre ( tole-a) Treatment{ ranceI ,!:,:I2.(3)(4)(5)Ohm-cm1 x 10 31x 1014 Ohm-cm1 x 10 0Ix 1011 MQkm36 7367MS& 37N/mms12 C80100daysN/mm*percent7712 512 512 5f 20f 25f 25percentpercent Cdays150f 20807125f 25--(6)(7)431x 10 sIx 5125II1357125* 3510--( conrirmd )5 ISr!]]}}