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Question:

Why medium voltage power cable sometimes write 8.7 / 10kv sometimes written in 8.7 / 15kv where the difference

What is the cable for rvv? Is it a power cable or a control cable? What is the cable?

Answer:

The two can not be used interchangeably, both the installation location and the way is also different. Do not have to consider the difference between the two.
Impossible, no matter how the video line is unable to transmit the audio signal.
Now basically control the cable core insulation leather are numbered, is not you not? 50-core control cable is rare, and finally there is no way, and I tell you a primitive approach: "turn the core method", that is, a layer of the cable in a layer (although a lot of core, or layered ) Of which one of the core, and then all of the head of the wire can be wired, than to do a good record (which line received what line number), each layer of wire to do such a mark and wiring, The order of the wiring is in accordance with the clockwise to pick up; the other end of the cable to find a layer of the first line of the core mark core (or lead the core), with anti-clockwise order, j OK! The Heart did not end, first find a small cable cable try! Ha ha!

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