IEC/BS Standard 12.7-22kV-XLPE Insulated MV Middle Voltage Power Cable

IEC/BS Standard 12.7-22kV-XLPE Insulated MV Middle Voltage Power Cable

Specifications:

    Suitable for energy networks such as power stations. For installation in ducts, underground and outdoor.

    The cables made to BS6622 and BS7835 are generally supplied with Copper conductors with Class 2 rigid stranding. Single core cables have aluminium wire armour (AWA) to prevent induced current in the armour, whilst the multicore cables have steel wire armour (SWA) providing the mechanical protection. These are round wires that provide over 90% coverage.

    Please note: Red outer sheath can be prone to fading when exposed to UV rays.

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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:

Flame propagation to BS EN60332
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: Steel Wire Armour (SWA), Steel Tape Armour (STA), Aluminium Wire Armour (AWA), Aluminium Tape Armour (ATA)
Sheath: PVC outer sheath
Sheath colour: Red or Black

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

12.7/22kV-Single core copper conductor XLPE insulated copper tape screened aluminium wire armoured PVC sheathed cables

Nominal area of conductor Maximum conductor resistance at 20 ℃ Thickness of xlpe insulation Thickness of copper tape Thickness of extruded bedding Dia of armour wire Thickness of outer  sheath Approx. Overall Approx. Cable weight
mm² Ω/km mm mm mm mm mm mm kg/km
35 0.524 5.5 0.12 1.2 1.6 2 32.2 1360
50 0.387 5.5 0.12 1.2 1.6 2 33.3 1524
70 0.268 5.5 0.12 1.2 2 2.1 36 1896
95 0.193 5.5 0.12 1.2 2 2.2 38 2241
120 0.153 5.5 0.12 1.2 2 2.2 39.4 2534
150 0.124 5.5 0.12 1.2 2 2.3 41 2867
185 0.0991 5.5 0.12 1.2 2 2.3 42.6 3288
240 0.0754 5.5 0.12 1.3 2 2.4 45.2 3923
300 0.0601 5.5 0.12 1.3 2.5 2.5 48.58 4756
400 0.047 5.5 0.12 1.4 2.5 2.6 52 5739
500 0.0366 5.5 0.12 1.4 2.5 2.8 55.64 6928
630 0.0283 5.5 0.12 1.5 2.5 2.9 59.84 8487

12.7/22kV-Three cores copper conductor xlpe insulated copper tape screened galvanized steel wire armoured pvc sheathed cables

Nominal area of conductor Maximum conductor resistance at 20 ℃ Thickness of xlpe insulation Thickness of copper tape Thickness of extruded bedding Dia of armour wire Thickness of outer  sheath Approx. Overall diameter Approx. Cable weight
mm² Ω/km mm mm  mm mm mm mm kg/km
35 0.524 5.5 0.075 1.5 2.5 2.7 57.4 4710
50 0.387 5.5 0.075 1.6 2.5 2.8 60.2 5130
70 0.268 5.5 0.075 1.6 2.5 2.9 64.2 5740
95 0.193 5.5 0.075 1.7 2.5 3.2 73.2 8870
120 0.153 5.5 0.075 1.7 3.15 3.3 78 10730
150 0.124 5.5 0.075 1.8 3.15 3.4 81.4 12000
185 0.0991 5.5 0.075 1.9 3.15 3.6 85.5 13460
240 0.0754 5.5 0.075 2 3.15 3.7 91.3 15780
300 0.0601 5.5 0.075 2 3.15 3.9 96 18110
400 0.047 5.5 0.075 2.2 3.15 4.1 103 21500