Medium voltage (MV) power cables are essential components in modern electrical power distribution systems, designed to handle voltages ranging from 1kV to 35kV. They serve as the backbone for transmitting electrical energy between substations, transformers, and end-user equipment in both industrial and utility settings.
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A medium voltage three core power cable is a robust and efficient electrical cable designed for transmitting electricity at medium voltage levels, typically ranging from 1 kV to 35 kV. It consists of three insulated conductors bundled together, providing power to industrial equipment, distribution networks, and renewable energy systems.
Conductor: copper or aluminium
Conductor Screen: Extruded semi-conductive compound
Insulation: XLPE
Insulation Screen: Extruded semi-conductive compound
Metallic Screen: copper tape or a concentric layer of copper wires
Outer Sheath: PVC or PE
Standards
IEC 60502 Part 1(1.8/3KV)
IEC 60502 Part 2(3.6/6KV to 18/30KV)
They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.
| Unarmoured Cables | |||||
| Nom. Cross- Section Area | Nom. Insulation Thickness | Nom. Sheath Thickness | Approx. Overall Diameter | Approx. Weight | |
| CU | AL | ||||
| mm2 | mm | mm | mm | kg/km | |
| 10 | 2 | 1.8 | 23 | 650 | 460 |
| 16 | 2 | 1.8 | 24 | 840 | 540 |
| 25 | 2 | 1.8 | 26 | 1160 | 680 |
| 35 | 2 | 1.8 | 29 | 1490 | 820 |
| 50 | 2 | 1.9 | 32 | 1900 | 1000 |
| 70 | 2 | 2 | 36 | 2580 | 1290 |
| 95 | 2 | 2.2 | 40 | 3440 | 1640 |
| 120 | 2 | 2.3 | 43 | 4220 | 1950 |
| 150 | 2 | 2.4 | 46 | 5090 | 2290 |
| 185 | 2 | 2.5 | 50 | 6240 | 2730 |
| 240 | 2 | 2.7 | 56 | 8030 | 3430 |
| 300 | 2 | 2.8 | 60 | 9890 | 4100 |
| 400 | 2 | 3.1 | 68 | 12530 | 5150 |
| 500 | 2.2 | 3.3 | 75.7 | 16680 | 7510 |
| 630 | 2.4 | 3.5 | 84.9 | 21770 | 10040 |
| Unarmoured Cables | |||||||
| Nom. Cross- Section Area | Nom. Insulation Thickness | Copper Tape Screen Area (0.1mm) | Copper Wire Screen Area | Nom. Sheath Thickness | Approx. Overall Diameter | Approx.Weight | |
| CU | AL | ||||||
| mm2 | mm | mm2 | mm2 | mm | mm | kg/km | |
| 10 | 2.5 | 4.2 | 16 | 2 | 30 | 980 | 790 |
| 16 | 2.5 | 4.6 | 16 | 2 | 31 | 1190 | 890 |
| 25 | 2.5 | 5 | 16 | 2.1 | 34 | 1560 | 1080 |
| 35 | 2.5 | 5.4 | 16 | 2.2 | 37 | 1930 | 1270 |
| 50 | 2.5 | 5.9 | 16 | 2.3 | 40 | 2370 | 1480 |
| 70 | 2.5 | 6.6 | 16 | 2.4 | 43 | 3110 | 1820 |
| 95 | 2.5 | 7.3 | 16 | 2.5 | 47 | 4000 | 2200 |
| 120 | 2.5 | 8 | 16 | 2.6 | 50 | 4820 | 2550 |
| 150 | 2.5 | 8.5 | 25 | 2.8 | 54 | 5770 | 2970 |
| 185 | 2.5 | 9.4 | 25 | 2.9 | 58 | 6960 | 3460 |
| 240 | 2.6 | 10.4 | 25 | 3.1 | 65 | 8940 | 4340 |
| 300 | 2.8 | 11.4 | 25 | 3.3 | 70 | 10980 | 5190 |
| 400 | 3 | 12.6 | 35 | 3.5 | 79 | 13820 | 6440 |
| 500 | 3.2 | 13.9 | 35 | 3.7 | 87 | 19100 | 10755 |
| 630 | 3.2 | 15.3 | 35 | 4 | 95 | 30470 | 13150 |
| Unarmoured Cables | |||||||
| Nom. Cross- Section Area | Nom. Insulation Thickness | Copper Tape Screen Area (0.1mm) | Copper Wire Screen Area | Nom. Sheath Thickness | Approx. Overall Diameter | Approx. Weight | |
| CU | AL | ||||||
| mm2 | mm | mm2 | mm2 | mm | mm | kg/km | |
| 16 | 3.4 | 5.2 | 16 | 2.2 | 36 | 1410 | 1110 |
| 25 | 3.4 | 5.68 | 16 | 2.3 | 39 | 1800 | 1320 |
| 35 | 3.4 | 6.09 | 16 | 2.3 | 41 | 2170 | 1500 |
| 50 | 3.4 | 6.58 | 16 | 2.4 | 44 | 2630 | 1730 |
| 70 | 3.4 | 7.23 | 16 | 2.6 | 48 | 3400 | 2110 |
| 95 | 3.4 | 7.91 | 16 | 2.7 | 52 | 4310 | 2510 |
| 120 | 3.4 | 8.64 | 16 | 2.8 | 55 | 5150 | 2890 |
| 150 | 3.4 | 9.19 | 25 | 2.9 | 58 | 6100 | 3300 |
| 185 | 3.4 | 9.88 | 25 | 3 | 62 | 7310 | 3810 |
| 240 | 3.4 | 10.96 | 25 | 3.2 | 69 | 9290 | 4680 |
| 300 | 3.4 | 11.84 | 25 | 3.3 | 73 | 11240 | 5450 |
| 400 | 3.4 | 12.92 | 35 | 3.6 | 81 | 14040 | 6660 |
| 500 | 3.4 | 14.34 | 35 | 3.7 | 88 | 17830 | 8450 |
| 630 | 3.4 | 16.68 | 35 | 3.9 | 96 | 20030 | 10895 |
| Unarmoured Cables | |||||||
| Nom. Cross-Section Area | Nom. Insulation Thickness | Copper Tape Screen Area (0.1mm) | Copper Wire Screen Area | Nom. Sheath Thickness | Approx. Overall Diameter | Approx. Weight | |
| CU | AL | ||||||
| mm2 | mm | mm2 | mm2 | mm | mm | kg/km | |
| 25 | 4.5 | 6.47 | 16 | 2.4 | 44 | 2100 | 1620 |
| 35 | 4.5 | 6.89 | 16 | 2.5 | 46 | 2510 | 1840 |
| 50 | 4.5 | 7.37 | 16 | 2.6 | 49 | 2980 | 2080 |
| 70 | 4.5 | 8.02 | 16 | 2.7 | 53 | 3760 | 2470 |
| 95 | 4.5 | 8.71 | 16 | 2.8 | 57 | 4700 | 2900 |
| 120 | 4.5 | 9.43 | 16 | 3 | 60 | 5590 | 3320 |
| 150 | 4.5 | 9.99 | 25 | 3.1 | 64 | 6560 | 3760 |
| 185 | 4.5 | 10.82 | 25 | 3.2 | 67 | 7800 | 4300 |
| 240 | 4.5 | 11.76 | 25 | 3.4 | 74 | 9820 | 5220 |
| 300 | 4.5 | 12.64 | 25 | 3.5 | 79 | 11800 | 6010 |
| 400 | 4.5 | 13.71 | 35 | 3.7 | 86 | 14620 | 7240 |
| 500 | 4.5 | 15.14 | 35 | 3.8 | 93 | 18160 | 9355 |
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