Control cables are generally used in the following scenarios:
Industrial automation control systems: Control cables are commonly used in industrial automation control systems to connect various sensors, actuators, and controllers, ensuring the proper operation and precise control of equipment.
Mechanical equipment: In mechanical equipment, control cables are used to connect motors, sensors, and various control devices, enabling automated control and monitoring of the equipment.
Building automation: In building automation systems, control cables are used to connect various sensors, controllers, and actuators, enabling intelligent building control and monitoring. For example, they are used to connect temperature sensors, humidity sensors, and lighting control systems.
Traffic signal systems: In traffic signal systems, control cables are used to connect traffic lights, cameras, and control systems, ensuring accurate control and display of traffic signals.
Security systems: In security systems, control cables are used to connect surveillance cameras, alarm systems, and access control systems, ensuring the proper operation and monitoring of security systems.
In these application scenarios, the primary function of control cables is to transmit control signals and data, ensuring communication and coordination between various devices, thereby achieving automated control and monitoring.
Core Features of Control Cables:
1. Electrical Performance and Structure
Rated Voltage: Suitable for control and protection circuits with AC rated voltages of 450/750V and below. The insulation layer is thinner, unlike the high-voltage characteristics of power cables.
Conductor Material: Copper core is typically used, with a thin wire diameter (generally no more than 10 square millimeters) and a high number of cores (up to 61). Suitable for transmitting control signals rather than high-power electrical energy.
Insulation and Jacket: Polyvinyl Chloride (PVC) insulation and jacketing are the mainstream. Some environmentally friendly models use low-smoke, halogen-free polyolefins, which do not release toxic gases when burned.
2. Mechanical and Environmental Adaptability
Tensile Strength: Models with steel armor offer high mechanical strength and are suitable for outdoor installation or underground burial. Standard models require a bend radius of ≥6 times the cable's outer diameter.
Temperature Range: The long-term operating temperature is typically 70°C (PVC) or 90°C (cross-linked polyethylene), with a minimum installation temperature of no less than 0°C.
3. Function and Application
Signal Transmission: Designed specifically for transmitting control signals, it is widely used in industrial automation, instrumentation, electrical transmission, and other fields, such as control systems in industrial and mining enterprises, energy, and transportation sectors.
Shielding Design: Some models feature a copper tape shield, but its anti-interference performance is weaker than that of computer cables, which emphasize a separate shield + overall shield structure.
4. Standards and Certifications
This cable complies with the national standard GB/T 9330-2008 (formerly GB9330-88), and its flame retardancy meets the requirements of GB12666-90.
Comparison with Other Cables: Compared to power cables, control cables have a smaller cross-section, a higher number of cores, and a lower voltage. Compared to computer cables, they have higher mechanical strength but weaker shielding performance.
Common models and specifications include the following:
1. KVV Control Cable: KVV control cable is a commonly used flexible control cable, primarily used for control circuit transmission in fixed wiring systems. The number of cores can be 2, 3, 4, or 5, with typical specifications of 0.75 mm², 1.0 mm², or 1.5 mm².
2.
KYJV Control Cable: KYJV control cable is a flame-retardant control cable suitable for electrical equipment control systems requiring fire resistance. Its core number and specifications are similar to those of KVV control cable.
3.
KVVP Control Cable: KVVP control cable is a shielded control cable featuring an aluminum-plastic composite shield structure, effectively reducing the impact of external interference on signal transmission. Common specifications include 3+2 cores and 4+1 cores.
4.
KVV22 Control Cable: KVV22 control cable is a double-layer steel-belted, decorative control cable used in fixed wiring systems. It offers excellent mechanical strength and resistance to external damage. Common specifications include 4 and 5 cores.
5. KVV32 Control Cable: KVV32 control cable is an armored control cable suitable for control signal transmission in highly abrasive environments. Common specifications include 3-core, 4-core, etc.
