Single-wire and stranded general use, instrument control cable can use a single line?
Shielding requirements of the higher number of cores is generally 3 +3 three phase line ground three symmetrical and phase line intersection.
As a power line when the multi-strand can effectively avoid the core of the eddy current generation. So the big power lines are mostly twisted together, and this line of softness is good. As a control line or signal line, it is not very care about these, because this line more detailed. The cabinet inside the multi-purpose strand, this type of line is easy to shape out more beautiful. Instrument cable This product is suitable for instrumentation, instrumentation and other electrical equipment in the signal transmission and control lines.
There are signal lines and color lines, the most important thing is that he is shielded,
The wire is made of one or several soft wires, with a soft jacket; the cable is made of one or several insulated packets, and the outer layer is covered with a tough outer layer of metal or rubber. Cables and wires are generally made up of three parts: the core wire, the insulating sheath, and the protective sheath. Commonly used cable features are as follows: CEF - EPR insulated neoprene jacket, marine flame retardant power cable. CVV - PVC insulated, PVC sheathed marine flame retardant power cable. OVC cable commonly used BV, BX, RV, RVV series of wires, including: BV - copper core PVC insulated wire, long-term allowable temperature 65 ℃, the minimum temperature -15 ℃, working voltage AC 500V, DC 1000V, fixed laying In the room, the outside can be deposited can also be deposited. BX - copper core rubber insulated wire, the maximum temperature of 65 ℃, apply to the room. RV - PVC insulated single-core cord, the maximum temperature of 65 ℃, the lowest temperature -15 ℃, 250V AC voltage, DC 500V, for the internal wiring equipment and equipment. RVV - Copper core PVC insulated and sheathed flexible wire, allowing long-term working temperature of 105 ℃, working voltage AC 500V, DC 1000V, for wet, mechanical protection requirements, often moving and bending occasions.
