What is electrical control cable?

12 Apr.,2024

 

Power Cable vs. Control Cable: What Is The Difference?

Power and control are some of the most common functions of electrical cables. In this blog, we discover the differences between the two and name the most common types of power and control cables.

What is a Power Cable?

The power cable is the type of cable used to send the energy from its source to the equipment. Power cables are used in overhead and underground energy transmission, as well as in industrial settings. These are multi conductor cables with aluminum or copper conductors. 

Types Of Power Cables

Depending on the transmission system, power cables can be AC or DC. AC cables are used in domestic 50 Hz systems, while DC cables are used in DC transmission systems.

Standard power cables include:

In an industrial setting, popular types of power cables are Type W, Type G, type G-GC, and others.

What is a Control Cable?

Control cables are designed in automation control for sending signals that control the equipment, as well as for measurement and regulation. Due to the nature of the environment they are used in, these cables have to be flexible or flexing.

Control cables are applied in automation systems, transport, building, construction, mining, and industry. These are multi-conductor cables. It is more common for them to have a copper conductor because of its superior conductivity.

Control vs. Instrumentation vs. Signal

The terms control, instrumentation, and signal refer to cables that are not used to transfer power. However, there is a subtle difference between these terms.

Signal cable includes coaxial cables, twisted pair cables, and fiber optic cables. The control wire is similar to signal cables as both carry signals. However, signal cables transmit data. Therefore, they need shielding to prevent electromagnetic interference. A regular control cable does not always have shielding. 

Another term commonly related to control cable is instrumentation cable. The cables that fall under this definition also need protection from crosstalk and EMI. Sometimes, the terms "control" and "instrumentation" may be used interchangeably to refer to the same cable. Instrumentation and control are related functions.

Types Of Control Cables

According to the primary classification, VDE Standards, there are three types of control cables: CY, YY, and SY. YY is a regular unshielded cable.

CY is a flexible cable protected from EMI. It is either individually shielded or has an overall shield. SY cables have a steel wire braid for control applications that require extra mechanical protection.

Standard control cables on the market are SEOW control cables, sprinkler control cables, tray control cables, marine control cables, and others.

Differences Between Power and Control Cables

Both power and control cables are used in industrial, residential, and commercial applications. Aside from the overall purpose, power and control cables have many differences.

  • For one, they differ when it comes to voltage. Power cables usually have a higher voltage than control wires at 0.6/1kV and higher. Control cables operate at 300/450/600/750V.

  • Since power cables are used in an active environment and transfer a high amount of energy, they call for excellent sheathing. In a power cord, the sheathing is strong and sturdy and is resistant to different external factors, including corrosion and temperatures. Control wires do not require the same sheathing and often have regular PVC insulation.

  • When used in the same environment, such as industry, a power cable needs a thicker insulation and jacket than a control cable. 

  • Control cables usually have an elaborate color coding, while power cables are often black and white.  

Power Control Cable: Between Two Functions

While the distinction between power and control functions is quite clear, some cables cannot be placed in either of these categories. The reason for this is that they perform both functions. These include airport lighting cables, welding cables, different types of marine and shipboard wires, portable power cords, and others.


Introduction to the difference between control cables and power cables


Cables are divided into power cables, control cables, signal cables (communication cables)

Power cable and control cable is the common exporting cable type. Control cables belong to electrical equipment cables, with power cables being two of the five major categories of cables.

Some customers have questions about control cable and power cable differences. Today we collect for everyone.

Application:

Power cables are used to transmit and distribute electrical energy. Power cables are used to transmit and distribute electrical energy.

While Control cables are specially designed for the centralized control of electrical equipment and a variety of automatic and wire control command control circuit cables! Its control is said that its role is to transmit control instructions dedicated to non-load cable.

Cable Type: 

Power cables are cable products used to transmit and distribute high-power electric power in trunk lines of power systems, including various insulated power cables with various voltage levels of 1-500KV and above.

While Control cable is suitable for industrial and mining enterprises, the energy transportation sector, for the exchange of rated voltage 450/750 volts below the control, protection lines, and other occasions used in PVC insulated PVC sheathed control cables. 

Voltage:

Power cables mainly referred to as cables are above 0.6/1KV. The voltage can be up to 500KV.

While Control cables are mainly 450/750V, within 0.6/1kv.

Construction:

Control cables are mainly Paris and many cores.

Size:

Because of the voltage difference, Power cable specifications generally can be larger, up to 500 square feet (conventional manufacturers can produce range), and then a large section of the general can do relatively few manufacturers, and the control cable section is generally smaller, the maximum is generally not more than 10 square.

Standard:

Power cable standard: IEC 60502-1, GB12706

Control cable standard: GB/T9330-2008, BS5308-1:19, BS5308-2:1986

Color identifies:

The color of the control cable insulation core is generally black printed white, there are low-voltage power cables are generally color separated.

Outward appearance: 

The power cable always has a thicker sheath, while the control cable has a thinner sheath.

Above is the main difference, hope you will have a simple knowledge of that. For any cable inquiry, you can contact ZMS Cable. We will offer our best technical and price support!



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