IEC/BS Standard 8.7-15kV-XLPE Insulated MV Middle Voltage Power Cable

IEC/BS Standard 8.7-15kV-XLPE Insulated MV Middle Voltage Power Cable

Specifications:

    15kV is a voltage commonly specified for equipment cables, including robust Mining equipment cables, manufactured in accordance with IEC 60502-2, but is also associated with British standard armoured cables.  Whilst mining cables may be sheathed in a robust Rubber to provide abrasion resistance, especially for trailing applications, the BS6622 and BS7835 standard cables are instead sheathed in PVC or LSZH materials, with mechanical protection provided from a layer of steel wire armouring.

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Parameter Table

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Application :

Suitable for energy networks such as power stations. For installation in ducts, underground and outdoor. Please note: Red outer sheath can be prone to fading when exposed to UV rays.

Standards:

BS6622
IEC 60502

Characteristics :

Conductor: stranded plain annealed circular compacted copper conductors or aluminium conductor
Insulation: cross link polyethylene (XLPE)
Metallic Screen: individual or overall copper tape screen
Separator: copper tape with 10% overlap
Bedding: polyvinyl chloride (PVC)
Armouring: SWA/STA/AWA
Sheath: PVC outer sheath
Voltage Rating Uo/U (Um)
8.7/15 (17.5) kV
Temperature Rating
Fixed: 0°C to +90°C
Minimum Bending Radius
Single core - Fixed: 15 x overall diameter
3 core - Fixed: 12 x overall diameter

Electrical data:

Maximum conductor operating temperature: 90°C
Maximum screen operating temperature: 80°C
Maximum conductor temperature during S.C: 250°C
Laying conditions at trefoil formation are as below:
Soil thermal resistivity: 120˚C. Cm/Watt
Burial depth: 0.5m
Ground temperature: 15°C
Air temperature: 25°C
Frequency: 50Hz

Single-core-8.7/15 kV

Nominal area conductor Conductor diameter Insulation thickness Nominal overall diameter Maximum overall diameter Approximate cable weight kg/km Minimum bending radius
mm² mm mm mm mm Cu Al mm
1x 16 8.7 4.5 21.0 22.0 636 536 308
1x 25 5.9 4.5 23.0 24.0 748 599 336
1x 35 7.0 4.5 25.0 26.0 920 695 360
1x 50 8.2 4.5 26.5 27.3 1106 700 380
1x 70 9.9 4.5 28.2 29.2 1360 902 410
1x 95 11.5 4.5 29.8 30.8 1579 981 430
1×120 12.9 4.5 31.4 32.4 1936 1180 450
1×150 14.2 4.5 32.7 33.7 2254 1310 470
1×185 16.2 4.5 34.9 35.9 2660 1495 503
1×240 18.2 4.5 37.1 38.1 3246 1735 530
1×300 21.2 4.5 40.3 41.3 3920 2031 580
1×400 23.4 4.5 42.5 43.5 4904 2385 610
1×500 27.3 4.5 46.8 47.8 6000 2852 670
1×630 30.5 4.5 50.2 51.2 7321 3354 717

Three-cores-8.7/15 kV

Nominal area conductor Conductor diameter Insulation thickness Nominal overall diameter Maximum overall diameter Approximate cable weight kg/km Minimum bending radius
mm² mm mm mm mm Cu Al mm
3x 16 4.7 4.5 39.9 41.0 1971 1673 574
3x 25 5.9 4.5 43.8 44.8 2347 1882 627
3x 35 7.0 4.5 50.0 51.0 3596 2946 710
3x 50 8.2 4.5 52.8 53.8 4254 3310 750
3x 70 9.9 4.5 56.7 57.7 5170 3848 810
3x 95 11.5 4.5 60.3 61.3 6195 4400 860
3×120 12.9 4.5 63.5 64.5 7212 4945 903
3×150 14.2 4.5 66.5 67.5 8338 5504 940
3×185 16.2 4.5 71.2 72.2 9812 6317 1010
3×240 18.2 4.5 75.6 76.6 11813 7279 1070

Armoured three-cores-8.7/15 kV

Nominal area conductor Conductor diameter Insulation thickness Nominal overall diameter Maximum overall diameter Approximate cable weight kg/km Minimum bending radius
mm² mm mm mm mm Cu Al mm
3x 16 4.7 4.5 45.5 46.6 3543 3245 652
3x 25 5.9 4.5 49.8 50.9 4220 3775 713
3x 35 7.0 4.5 55.1 56.1 4975 4324 780
3x 50 8.2 4.5 57.9 58.9 5723 4779 820
3x 70 9.9 4.5 61.8 62.8 6739 5416 880
3x 95 11.5 4.5 65.4 66.4 7906 6112 930
3×120 12.9 4.5 68.8 69.8 9000 6733 980
3×150 14.2 4.5 71.8 72.8 10224 7390 1020
3×185 16.2 4.5 76.3 77.3 11770 8275 1082
3×240 18.2 4.5 81.0 82.0 13957 9423 1140