You may often hear electrical power cables and control cables mentioned in engineering projects, but do you know the respective functions of electrical power cables and control cables? Control cables directly transmit electrical energy from the power distribution point of the power system to the power connection lines of various electrical equipment, while electrical power cables are mainly used for the transmission of strong electrical energy in the generation, distribution, transmission, transformation, and power supply lines, and the current passing through is large. The electrical power cable is used in the main line of the power system to transmit and distribute large-function electrical energy.
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1. Executive standard:
Control cable is , electrical power cable is GB.
2. Core color:
The color of the insulated core of the control cable is usually black with white lettering, and the low voltage of the electrical power cable is generally color-separated.
3. Cross section:
The electrical power cable is a one-time load wire. The current carrying capacity increases with the increase of power. The application cross section of the wire must also increase with the increase of current. Therefore, the size of the power cable is generally larger, up to 500 square meters. , No matter how large the cross-section is, there are generally fewer chinese cable manufacturers that can do it. The control cable is a secondary command wire used to control the current-carrying operation of the contactor and other equipment. The load current is very small and the wire section is very small. Therefore, the section of the control cable is usually small, and the maximum is usually no more than 10 square.
4. Cable core number:
The number of cores of the power cable is relatively small, including single core, two cores, 3 cores, 4 cores and 5 cores. According to the requirements of the power grid, the maximum is generally 5 cores. Control cables are used to transmit control signals, which contain a large number of cores, ranging from 2 cores to 61 cores or more. Control cables also use various core wire structures and shielding measures to obtain satisfactory electromagnetic compatibility effects.
5. Rated voltage:
The rated voltage of the power cable is generally 0.6/1kV and above, and the control cable is mainly 450/750V.
6. Wire sheath:
The power cable requires the wire sheath to have sufficient compressive strength, tensile strength, temperature resistance and corrosion resistance. The control cable requirements are relatively low. When producing industrial power cables and control cables of the same specification, the thickness of the insulation and sheath of the electrical power cable is thicker than that of the control cable.
It is – residential, commercial, and industrial properties are powered by electricity and are controlled via automation. This is possible because of a complex network of cables that run through the premises – primarily power and control cables. But what are they? More on power cables and control cables below.
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A power cable is an electric cable that transmits and shifts energy from a power source to a piece of electronic equipment. Installation can be overhead or underground, depending on their use, and they usually consist of 2+ electric conductors covered by a sheath. Copper and aluminium are primarily used due to their high electric conductivity, while polyvinyl chloride (PVC) is the most common dielectric due to its great insulation capacity. The sheath is usually made of lead alloy due to high durability. The types of power cables are:
Now that you know everything about power cables, let’s learn about control cables.
A control cable is an electric cable that is designed to help equipment function as it is supposed to via automation. It sends signals to the various lines in electrical equipment to make this possible. It is the most essential part of an automation system and hence, must be of superior quality. This means they should have a UL rating and be covered with a braid shield, foil shield, or both. In addition, it must be able to tolerate flex for hassle-less installation in the most difficult of locations. They are essential to robotics, assembly lines, and power distribution systems, among others.
Now that you have learnt about power and control cables, let’s dive deep into how they are different from each other.
There are a few major differences between power cables and control cables, and we have listed the main ones down below:
Power cables require thicker insulation than control cables when working in the same environment.
Control cables have a voltage of 300V to 600V, and power cables usually have a higher voltage of 0.6/1 kV.
Control cables start at a size of 28 AWG and go up to 2 AWG while power cables start at 40 AWG and can go to 1 AWG.
Control cables can withstand temperatures up to 900 degrees C, while power cables
Power cables are GB while control cables are .
Control cables are usually black with white alphabets or numbers while power cables have different colours.
Power cables have 1, 2, 3, 4, and 5 cores – based on their utility. However, control cables have cores ranging from 2 to 61 in numbers!
We are sure that you are in a commanding position to choose the apt power and control cables for your facility, now that you know all about them! But which company should you trust?
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