What are control cable used for?

control cables Control cables are divided into common control cables, flame retardant (ZR) control cables, fire resistant (NH/ZCN) control cables, low smoke and no halogen (DW) control cables, low smoke and low halogen (DLD) control cables, high flame retardant (GZR) control cables, temperature resistant, cold resistant and other control cables according to the usage of working category.

Control cables are moisture-proof, anti-corrosion and damage-proof, and can be laid in tunnels or cable trenches. Power cables are used to transmit and distribute high-power electrical energy in the main line of the power system, and control cables are used to transmit electrical energy directly from the distribution points of the power system to the power connection lines of various electrical equipment appliances.

Performance characteristics

1. DC resistance: 20 ℃, 0.4mm copper wire, less than or equal to 148Ω/km, 0.5mm copper wire, less than or equal to 95Ω/km.

2. Insulation electrical strength: between conductors 1min 1kv not breakdown conductors and shielding 1min 3kv not breakdown

3. Insulation resistance: each core and the rest of the core grounding, control cables greater than 10000MΩ.km, HYAT cable greater than 3000MΩ.km.

4. Working capacitance: average 52±2nF/km

5. Remote crosstalk defense degree: the average value of the power of the specified combination at 150kHZ is greater than 69dB/km.

Performance difference

Control cables are moisture-proof, anti-corrosion and damage-proof, and can be laid in tunnels or cable trenches. [1] Power cables are used to transmit and distribute high-power electrical energy in the main line of the power system, and control cables are used to transmit electrical energy directly from the distribution point of the power system to the power connection lines of various electrical equipment appliances. The rated voltage of power cables is generally 0.6/1kV and above, and control cables are mainly 450/750V.

The same specifications of the power cable and control cable in the production of power cable insulation and sheath thickness than the control cable thick.

The use of control cables.

Mainly used for the transmission of control, measurement signals and other cables. Control cable is suitable for mainstream and AC 50HZ, rated voltage 450/750V, 600/1000V and below industrial and mining enterprises, modern high-rise buildings and other long-distance operation, control furnace, signal and protection measurement circuit. As the connection line between all kinds of electrical instruments and automatic instrumentation devices, it plays a role in transmitting various electrical signals

The role of the system to ensure the safe and reliable operation.

1, control cable for DC and AC 50Hz, rated voltage 450/750V, 600/1000V and below industrial and mining enterprises, modern high-rise buildings and other long-distance operation, control circuit, signal and protection measurement circuit.

2, the use of wire and cable in the information transmission system, there are telephone cables, cable TV cables, data transmission cables, mobile wireless communication systems with radio frequency cables and a variety of electronic cables and so on. In recent years, the proportion of fiber optic cable in the information transmission network is rapidly increasing, becoming the main transmission medium for information transmission lines.

3、As the connection line between all kinds of electrical instruments and automatic instrumentation devices, it plays the role of transmitting various electrical signals and ensuring the safe and reliable operation of the system.

4、Including city telephone cables used in the city or local area communication network, long-distance communication cables (long-distance symmetrical communication cables, coaxial communication cables) used for long-distance inter-city communication, bureau cables and various communication wires.