China Factory Price High Quality Medium Voltage 66kv Copper Aluminum Conductor PVC XLPE Insulation Power Plants Transmission Electrical Cable, Find details about China Electric Wire, Electric Cable from Factory Price High Quality Medium Voltage 66kv Copper Aluminum Conductor PVC XLPE Insulation Power Plants Transmission Electrical Cable
Application
Extra-high-tension cable is a kind of power cable with the continuous development of cable technology. The cable is generally used as a central link in the large transmission system. It belongs to a high voltage cable with high technical content, which is mainly used for long distance power transmission.
Standard:GB 11017, IEC60840
Construction
Al/Cu Conductor, XLPE Insulation, Metal shield layer, Water-blocking layer, Metal sheath, Outer Sheath, Conductive layer
66KV POWER CABLE | |||||||||
Rated voltage | Conductor size | Approx. Conductor dia. | XLPE Insulation thickness | Electric Capacity | Inductance | Loss of insulation | Max. D.C. Resistance | ||
Parallel laying | Trefoil laying | Cu | Al | ||||||
KV | mm2 | mm | mm | pf/m | mh/km | mh/km | w/m | Ω/km | |
66 | 240 | 18.4 | 19 | 136 | 0.757 | 0.508 | 0.175 | 0.0754 | 0.125 |
300 | 20.6 | 18.5 | 147 | 0.734 | 0.489 | 0.19 | 0.0601 | 0.1 | |
400 | 23.5 | 17.5 | 165 | 0.708 | 0.465 | 0.212 | 0.047 | 0.0778 | |
500 | 26.6 | 17 | 182 | 0.683 | 0.445 | 0.234 | 0.0336 | 0.0605 | |
630 | 30.25 | 16.5 | 201 | 0.657 | 0.424 | 0.259 | 0.0283 | 0.0469 | |
800 | 34.23 | 16 | 224 | 0.633 | 0.406 | 0.288 | 0.0221 | 0.0367 | |
1000 | 41.4 | 16 | 265 | 0.594 | 0.386 | 0.341 | 0.0176 | 0.0291 | |
1200 | 45.28 | 16 | 282 | 0.577 | 0.375 | 0.363 | 0.0151 | 0.0247 |
Production process and Test
Workshop
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