When we talk about cables, the term we often hear about is control cable. Control cables are PVC-insulated and PVC-sheathed cables used in industrial and mining enterprises, energy and transportation sectors, and for control and protection circuits with rated voltages up to 450/750 volts AC. So, what are the structural designations for these cables, and what applications are they suitable for? Let's take a look!
What are the structural designations for control cables?
K - Control Cable
V - PVC Insulation
V - PVC Sheath
P - Braided Shield
P2 - Copper Tape Shield
P3 - Aluminum/Plastic Composite Film Shield
R - Soft Structure (for mobile brake installations)
2 - Double Steel Tape Armor
3 - Steel Wire Armor
What applications are different types of control cables suitable for?
KVV - Copper Core PVC Insulated, PVC Sheathed Control Cable. Rated voltage is 450/750 volts. This type of cable is primarily used in mines as a specialized control cable.
KVV22 - Copper core PVC insulated, PVC sheathed, steel tape armored control cable. Rated voltage: 450/750V. Mainly used indoors or in cable trenches, such as direct buried pipes and other fixed locations. This cable is characterized by its ability to withstand high mechanical forces.
KVVRP - Copper core PVC insulated, PVC sheathed, braided shielded control cable. Rated voltage: 450/750V. Generally used indoors in locations where removable shielding is required.
KVVP2 - Copper core PVC insulated, PVC sheathed, copper tape shielded control cable. Suitable for installation in indoor locations with strong magnetic fields, within cables, in pipes, for direct buried locations, and in suspended locations, capable of withstanding high tensile forces.
KVVP - Copper core PVC insulated, PVC braided shielded control cable. Suitable for connecting control, monitoring, and protection circuits with rated voltages U0/U450/750V and below. It is primarily used in locations where shielding is required to prevent electromagnetic interference.
KVVR - Copper core PVC insulated, PVC sheathed control flexible cable. Suitable for indoor installations requiring flexibility or for unshielded installations requiring mobility.
Control cable characteristics:
Rated voltage: U0/U is 450/750V.
The conductor core's long-term operating temperature is 70°C or 105°C, and the cable installation temperature should not be lower than 0°C.
The recommended allowable bend radius of the cable is as follows:
For unarmored cable, the bend radius should be no less than 6 times the cable's outer diameter;
For armored or copper-tape shielded cable, the bend radius should be no less than 12 times the cable's outer diameter;
For shielded flexible cable, the bend radius should be no less than 6 times the cable's outer diameter.
Control cable generally refers to power supply/signal control for equipment and instruments.
Representative models: KVV/KYJV/and other instrument cables, etc.
The above is an introduction to the structural characteristic codes of control cables and their usage scenarios. With the continued rapid growth of China's economy, it has provided a huge market space for cable products. The strong appeal of the Chinese market has made the world focus on the Chinese market. In just a few decades of reform and opening up, the huge production capacity formed by China's cable manufacturing industry has made the world take notice.
