Sl.Normal Cross-SectionalArea of Conductor in mm2No.DescriptionUnit1.52.546101625355070951201501852403004005006308001000ConstructionalDetailsConductor (solid)1Minimum number ofwiresnos.1111166661215151530303053535353912ShapeCircularsolidCircular CompactedCircular(noncom-pacted)Conductor (stranded)Minimum number ofwiresnos.333376666121515153030305353535391ShapeCircularStrandedCircular CompactedCircular(noncom-pacted)Insulation3TypePVC Compound Type A to IS:58314Nominal thicknessmm1.11.21.31.31.31.31.51.51.71.71.91.92.12.32.52.73.03.43.93.93.9Armouring5Type and MaterialSingle Layer of Round Hard Drawn Aluminium Wires6Nominal Diameter ofWire1.41.41.41.41.41.41.41.41.41.41.61.61.61.61.61.62.02.02.02.02.57Dia over laid up core4.515.255.856.757.809.6210.7612.6614.3016.6018.1020.4022.4425.1528.0031.8536.2540.6744.8549.258Dia over armoured(strip)10.0011.0013.0014.0017.0021.0023.0027.0031.0031.0034.0038.0042.0047.0053.0048.0054.0061.0067.0059.00Dia over armoured(wire)7.318.058.659.5510.6012.4213.5615.4617.1019.8021.3023.6025.6428.3531.2035.8540.2544.6748.8554.25Outer sheath9TypePVC Compound Type A to IS:583110ColourBlack11Minimum thicknessmm1.241.241.241.241.241.241.241.241.241.41.41.41.41.41.561.561.561.721.881.882.0412Approximate overalldiameter of CBLmm10.010.711.312.213.315.116.218.120.122.824.326.628.631.734.639.243.948.652.856.6ELECTRICAL CHARECTERSTICS13Resistance of conductor per1000m length of completed cablea) Maximum d.c.resistanceat 20 Deg. C.ohm18.112.17.414.613.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.10.07780.06050.04690.03670.0291b) a.c. resistance at70 Deg. Cohm21.7214.528.895.533.702.291.441.0420.770.5320.390.3040.2480.1980.1520.1220.09620.07620.06080.04980.042114Continuous current rating (a.c.)ofcables under standard conditions(a) For two single core cablestouching in horizontal formation-i) When laid directin groundamps21283644597597120145170205230265300335370410435485530580ii) When laid inductsamps19253342567193110130155180200220240270295335355395440490iii)When laid in airamps18253241567299120150185215240270305350395455490560640740(b) For three singlecore cablestouching in trefoil formationi) When laid directin groundamps17243139516686100120140175195220240270295325345390440490ii) When laid inductsamps17243037516584100115135155170190210225245275295320345370iii)When laid in airamps1521273547648410513015519022025029033538043548055064072015Reactance per 1000mlength ofcable at 50 Hz(assuming 3 singleohm0.190.180.160.150.140.130.110.1050.10.0950.090.080.820.0790.0750.0720.0700.0690.0670.0650.06core cables laid in trefoil touchingformation)16Capacitance per 1000mlength ofmicrocable (assuming 3 single core CBLfarad0.350.390.440.510.610.760.820.930.951.111.21.31.31.331.41.431.51.51.51.71.92laid in trefoil touching formation17Minimum volumeresistivityof PVC insulationcm1 x 1013at 27 DegC and 1 x 1010at 70 Deg C18Maximum permissibleshortcircuitkilocurrent for duration of one sencondamps0.1140.1900.3040.4560.7601.2161.9002.6603.8005.3207.2209.12011.40014.06018.24022.80030.40038.00047.88060.80076.00019Voltage drop per 1000m lengthofcable(assuming 3 single corecables used on 3 phase a.c system)a) When laid directin groundvolts639604478374327262215180163132118104998780716261545450b) When laid in ductsvolts63960446235532725821018015612610492857666595452454238c)When laid in airvolts56552841633630125521019117514613212111310699929083878887GENERAL:20Approximate net weight per 1000mkg12014016018020025032037045050073084097011601455170022102730343542205180length of finished cable21Stranded length of cable(subject tom500a manufacturing tolerance +/-5%)22Drum Dimensions-a)Approximate overall heightmm7408408408408408409409401040114011401250125014501450155016501850205022652365b) Approximate outer widthmm5155155155156656656906907157158558558558558559101130118011801420155023Approximate grossweight of drumkg10512013014015518023025531038046555061576090510901415181522952960354024Minimum bending radius forlaying15 x Overall Diameter ofcableof cable25Recommended pullingforce:a) When conductor pulled bypullingeyeN30 xTotalConductor Area in mm2b) When cable pulled withstockingN5 x D2where D isthe Overall Diameter of cable in mm2STRANDED CONDUCTOR ISALSO PERMISSIBLE IN THESE SIZES
Sl.Normal Cross-SectionalArea of Conductor in mm2No.DescriptionUnit1.52.5461016253550709512015018524030040 |