What is the difference between power cable and control cable?
In our daily life, we need to use electricity everywhere, whether it is lamps and lanterns lighting or machinery and equipment use, all need to wire and cable connection power. There are many types of wires and cables on the market, there are different types of control cables, power cables, so what is the difference between control cables and power cables? Next let me introduce the six differences between power cables and control cables.
1. The difference between the core color:
* Control cable insulation core of the general are black printed white
* Power cables with low voltage are generally color separation
2. the difference in the field of application:
*Control cables from the power distribution point of the power system to transmit power directly to a variety of electrical equipment and appliances power connection lines.
*Power cables are mainly used in the generation, distribution, transmission, transformation, power supply lines in the transmission of strong electrical energy. Through the current is large, power cables in the backbone of the power system for transmission and distribution of large functions of electrical energy.
3. Difference in cross-section:
*Power cable for the primary load wire, the current-carrying capacity with the increase in power and increase, wire application cross-section must also increase with the increase in current and increase. So the specifications of the power cable is generally larger, up to 500 square feet (conventional manufacturers can produce the range), and then the larger cross-section of the general ability to do the manufacturers are relatively few.
*The control cable is a secondary command cable, the devices controlled by the current-carrying operation of equipment and other devices, the load current is extremely small, the conductor area is extremely small. So the cross-section of the control cable is generally smaller, the maximum is not more than 10 square.
4. The difference between the number of cable cores:
*Power cable: the number of cores is small, there are single-core, 2-core, 3-core, 4-core (three-phase four-wire system), 5-core (three-phase five-wire system), according to the requirements of the power grid, the most generally 5-core.
*Control cables: used to transmit control signals, the number of cores is more, from 2 cores to 61 cores, or even more. Control cables also use a variety of core structure, shielding and other measures to obtain satisfactory electromagnetic compatibility.
5. Difference in rated voltage:
*Power cables: mainly used for mainline power transmission in the power system, its voltage is generally above 0.6/1kv;
*Control cable: mainly used for electrical equipment power connection, its voltage is 450/750V.
6. The difference between the wire skin:
*Power cables require that the sheath has sufficient compressive strength, tensile strength, temperature resistance, corrosion resistance.
*Control cable requirements are lower. The same specifications of industrial electrical power cables and control cables in the production of power cable insulation and sheath thickness is thicker than the control cable.
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