MEDIUM VOLTAGE CABLE

33 kV Single Core AL XLPE CWS MDPE cable BS7870-4.10

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The three single-core cables with insulation of cross-linked polyethylene (XLPE) factory bindled in TRIPLEX, are designed for transfer and distribution of electrical power with nominal voltage Uo/U 6.35/11 and 19/33 kV and frequency 50 Hz in urban and district electrical networks and for electrical supply of transformer’s substations, small and medium industrial plants. They are suitable for use in distribution installations, electric power stations and industrial systems.

The cables are for fixed assembly in lines with unlimited difference levels, indoor installations, in cable ducts, conduits and shafts, over shelves and grills directly underground in ditch and outdoor shelter.

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Product Attributes

Weather Resistant | Halogen Free | Frost Resistant | Solar Product Related | Temperature Resistant | UV Resistant |

No. of Cores1
ConductorALuminium Conductor, Circular Compacted
InsulationXLPE Insulation, Colour Natural
TapeSemi-Conductive Water Blocking Tape
ScreenCopper Wire Screen
TapeCopper Tape (O.H), Non-Conductive Water Blocking Tape
SheathMDPE
ColourBlack
Nominal C.S.A. of copper wire screen including copper tape35 mm2
Max DC resistance of metallic screen at 20°C0.524 Ω/km
Min bending radius20 x outer diameter
Rating Voltage: Uo/U (Um)19/33 (36) KV
Temperature rangeMaximum conductor operating Temp.: 90°C
Maximum scrfeen operating temperature: 80°C
Maximum Conductor Temperature During S.C: 250°C
Metallic Screen S.C.C. for 1 sec
4.16 kA
Current Carrying Capacity* Laying conditions at Trefoil formation
Soil Resistivity 1.2C.m/W
Burial Depth: 0.5m
Ground Temperature: 35°C
Air Temperature: 40°C
StandardsAll routive tests required by BS 7870-4.10 are performed on the cable& a test certificate can be supplied on request.
Insulation thickness will be measured and tested according to BS 7870-4.10.199 clause no. 4.2.3.
Cable is longitudinally watertight at the metallic screen BS EN 60228, BS 7870-4.10
Cable Size mm²Approx conductor diameter mmApprox diameter over insulation mmApprox diameter over metallic screen (after copper tape) mmApprox cable outer diameter mmApprox cable Weight kg/kmConductor DC resistance at 20°C ohm/kmConductor AC resistance at max operating temp and 50 Hz ohm/km
709.828.231.136.112700.4430.5682
9511.329.732.637.814000.320.4105
12012.731.13439.215150.2530.3247
15014.131.934.840.216150.2060.2646
18515.834.237.142.518050.1640.2107
24018.135.938.844.420150.1250.1611
30020.538.941.847.623200.10.1294
40023.241.244.150.126350.07780.1013
50026.544.547.453.630600.06050.0797
63030.048.050.957.336050.04690.063
Cable Size mm²Inductance mH/kmReactance at 50Hz ohm/kmCapacitance Charging current Amp/kmDielectric losses W/km/phaseConductor S.C.C. for 1 sec kACables are protected from direct solar radiation and no other thermanl sources in the neighbourhood.
When laid in
Ground AFree AIr A
700.4550.1430.1570.93471.016.6188204
950.4360.1370.171.01777.288.9222246
1200.4190.1320.1831.09383.1211.2254284
1500.4040.1270.2011.20291.3214.1283324
1850.3890.1210.2111.26195.8517.3321373
2400.3710.1170.2391.424108.2422.5372443
3000.360.1130.2531.512114.8828.1421511
4000.340.1080.2881.716130.4437.5478593
5000.3310.1040.3181.897144.1846.9544693
6300.3190.10.352.088158.7159.0617803