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240mm 3 Core XLPE Insulad PVC Sheached Steel Tape Armoured Po

240mm 3 Core XLPE Insulad PVC Sheached Steel Tape Armoured Power Cable

-> Number of cores about Medium voltage steel tape armoured power cable:

The core number can be one core, two core, three core, four core, five core, 3+1 core, 3+2 core, 4+1 core and so on.

-> XLPE insulation and PVC sheached steel tape armoured power cable technical parameter:

1. Rated voltage: Uo/U: 66kV, 26/35kV, 21/35kV, 12/20 kV (24 kV), 8.7/10kV, 8.7/15kV, 6/6kV, 6/10kV.

2. No. of core: Single-core, Three-core etc.

3. The highest allowed operating temperature of conductor for long-term working is 90°C. In short-circuit (Max. Long-term is no more than 5 seconds). The highest temperature for conductor is no more than 250°C.

4. D.C Resistance of the conductor complies with the stipulations of GB/T3956-1997.

5. The environment temperature should be no lower than 0 when lay. Otherwise it should be preheated.

6.The cable is laid without horizontal drop limit. The Min. Bending radius of three-core cable should be no smaller than 12 times of cable outer diameter.

7. Working Frequency Voltage Test:

For cable with Uo of 3.6kV or lower: 2.5Uo+2kV/5min without puncture.

For cable with Uo of 3.6kv~18kV: 3.5Uo/5min without puncture.

For cable with Uo of 21kV and 26 kV: 2.5Uo/30min without puncture.

8. Partial Discharge Test: The discharge volume should be no more than 10pC under 1.73Uo for the cable.

-> Performance Characteristics of XLPE insulation and PVC sheached steel tape armoured power cable:

1) The long-term permissible operation temperature of conductor shall not be higher than 70°C.

2) Conductor Max. short circuit (not more than 5 seconds)temperature shall not be higher than 160°C.

3) The cable is not limited by drop in level when being laid,and the environment temperature shall not be 0°C.

4) Perfect chemical stability,resistant against acids,alkalis,grease and organic solvents,and flame retradance.

5) Light weight,perfect bending properties,installed and maintained easily and conveniently.

XLPE POWER CABLE

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