First of all, Xiao Bian tells everyone what a control cable is. The control cables are PVC insulated and PVC sheathed control cables suitable for industrial and mining enterprises, energy transportation departments, and applications where the rated voltage is 450/750 volts or less and the protection circuit is used. The common faults of the control cable lines are mechanical damage, insulation damage, damp insulation, deterioration of insulation age, overvoltage, and cable overheating. What are the control cable models ? What issues need to pay attention to when installing? Let's study together next.
[control cable model ]
KVV resistance copper core PVC insulated PVC sheathed kvv cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipelines and other fixed occasions
KVVP flame-retardant copper core PVC insulated PVC sheathed KVVP cable 450/750 4-37 0.75-10 KVVR copper core PVC insulated PVC sheathed for fixed occasions such as indoor, cable trenches and pipelines requiring shielding Sets of control flexible cables 450/750 4-37 0.75-10 Laid indoors, where there are moving requirements KVVRP Copper core PVC insulated PVC sheathed braided shield control flexible cable 450/750 4-37 0.75-10 Laying on Indoor, where there is a requirement for mobile shielding ZRKVV flame retardant copper core PVC insulated PVC sheathed zrkvv cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipes and other flame-retardant fixed occasions ZRKVV22 copper Core PVC insulated PVC sheathed woven steel tape armored zrkvv22 cable 450/750 4-37 0.75-10 Laid indoors, cable trenches, pipes directly buried, etc. can withstand large mechanical external force flame retardant requirements of the fixed occasions
ZRKVVP Cu core PVC insulated PVC sheathed braided shielded zrkvvp cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipes, etc. Require shielded, flame-retardant fixed occasions ZRKVVR copper core PVC insulation poly Vinyl sheathed braided zrkvvr cable 450/750 4-37 0.75-10 Laid indoors, with moving and flame-retardant requirements ZRKVVRP Copper core PVC insulated PVC sheath braided shield zrkvvrp cable 450/750 4-37 0.75-10 Laid indoors, where there are requirements for mobile shielding and flame retardant [Precautions for control cable installation and wiring]
1. Under the roof. Cables can only be used if they are not directly exposed to sunlight or ultra-high temperatures. Standard LAN cables can be used. Pipes are recommended. Ultraviolet (UV) - Do not apply UV-free cables to direct sunlight.
2. The outer wall. Avoid direct sunlight on the wall and human damage. Heat - The temperature of a cable in a metal pipe or raceway is high, and many polymeric materials have a reduced service life at this temperature.
3. In the pipeline (plastic or metal). If in the pipe, pay attention to the damage of the plastic pipe and the heat conduction of the metal pipe. Mechanical damage (repair cost) - Repair of fiber optic cable is very expensive, requiring at least two terminations at each discontinuity.
4. Hang the application/overhead cable. Consider the sagging and stress of the cable. Whether the cable is directly exposed to sunlight.
5. Laying directly in underground cable trenches, this environment is the least controlled. The installation of cable trenches should be regularly checked for dryness or moisture level. Grounding - If the shield of the control cable needs to be grounded, the corresponding standards must be observed.
6. Underground pipelines. In order to facilitate future upgrades, cable replacement and isolation from surface pressure and surrounding environment, auxiliary pipelines are isolated, and auxiliary piping is a better method. But don't expect the pipeline to stay dry forever, which will affect the choice of cable types. Water - The moisture in the LAN twisted pair cable increases the capacitance of the cable, which reduces the impedance and causes near-end crosstalk problems.
Xiao Bian concludes: The above introduced the control cable model and installation precautions for everyone, I hope to be helpful to everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
[control cable model ]
KVV resistance copper core PVC insulated PVC sheathed kvv cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipelines and other fixed occasions
KVVP flame-retardant copper core PVC insulated PVC sheathed KVVP cable 450/750 4-37 0.75-10 KVVR copper core PVC insulated PVC sheathed for fixed occasions such as indoor, cable trenches and pipelines requiring shielding Sets of control flexible cables 450/750 4-37 0.75-10 Laid indoors, where there are moving requirements KVVRP Copper core PVC insulated PVC sheathed braided shield control flexible cable 450/750 4-37 0.75-10 Laying on Indoor, where there is a requirement for mobile shielding ZRKVV flame retardant copper core PVC insulated PVC sheathed zrkvv cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipes and other flame-retardant fixed occasions ZRKVV22 copper Core PVC insulated PVC sheathed woven steel tape armored zrkvv22 cable 450/750 4-37 0.75-10 Laid indoors, cable trenches, pipes directly buried, etc. can withstand large mechanical external force flame retardant requirements of the fixed occasions
ZRKVVP Cu core PVC insulated PVC sheathed braided shielded zrkvvp cable 450/750 4-37 0.75-10 Laid in indoor, cable trenches, pipes, etc. Require shielded, flame-retardant fixed occasions ZRKVVR copper core PVC insulation poly Vinyl sheathed braided zrkvvr cable 450/750 4-37 0.75-10 Laid indoors, with moving and flame-retardant requirements ZRKVVRP Copper core PVC insulated PVC sheath braided shield zrkvvrp cable 450/750 4-37 0.75-10 Laid indoors, where there are requirements for mobile shielding and flame retardant [Precautions for control cable installation and wiring]
1. Under the roof. Cables can only be used if they are not directly exposed to sunlight or ultra-high temperatures. Standard LAN cables can be used. Pipes are recommended. Ultraviolet (UV) - Do not apply UV-free cables to direct sunlight.
2. The outer wall. Avoid direct sunlight on the wall and human damage. Heat - The temperature of a cable in a metal pipe or raceway is high, and many polymeric materials have a reduced service life at this temperature.
3. In the pipeline (plastic or metal). If in the pipe, pay attention to the damage of the plastic pipe and the heat conduction of the metal pipe. Mechanical damage (repair cost) - Repair of fiber optic cable is very expensive, requiring at least two terminations at each discontinuity.
4. Hang the application/overhead cable. Consider the sagging and stress of the cable. Whether the cable is directly exposed to sunlight.
5. Laying directly in underground cable trenches, this environment is the least controlled. The installation of cable trenches should be regularly checked for dryness or moisture level. Grounding - If the shield of the control cable needs to be grounded, the corresponding standards must be observed.
6. Underground pipelines. In order to facilitate future upgrades, cable replacement and isolation from surface pressure and surrounding environment, auxiliary pipelines are isolated, and auxiliary piping is a better method. But don't expect the pipeline to stay dry forever, which will affect the choice of cable types. Water - The moisture in the LAN twisted pair cable increases the capacitance of the cable, which reduces the impedance and causes near-end crosstalk problems.
Xiao Bian concludes: The above introduced the control cable model and installation precautions for everyone, I hope to be helpful to everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
Shielded control cable control cable cable integrated cable yjv cable
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