NH-KVV22 fire-resistant control cable

1、 Product Features

1. Fire resistance performanceNH-KVV22 cable can maintain safe operation for a certain period of time under flame combustion conditions, meeting the fire resistance test standards specified in GB12666.6 (equivalent to IEC331), and can continuously supply fire for 90 minutes at flame temperatures of 750 ℃~1000 ℃ without affecting the normal use of the cable.

2. Electrical performanceThe cable adopts copper core polyvinyl chloride insulation and polyvinyl chloride sheath, which has good conductivity and electrical insulation performance, ensuring the stability and safety of power transmission.

3. mechanical propertiesThe outer layer of the cable is armored with steel tape, which has high mechanical strength and wear resistance, and can protect the cable from mechanical damage during laying and use.

4. environmental performanceThe cable material meets environmental requirements, does not contain harmful substances, and is harmless to the environment and human health.

2、 Structural composition

NH-KVV22 fire-resistant control cableIt mainly consists of the following parts:

• conductorUsing copper core wire with high conductivity.

• insulating layerMade of polyvinyl chloride material, it has good electrical and fire resistance properties.

• fillerUsed to fill the gap between the insulation layer and the sheath, enhancing the roundness and resistance to compression of the cable.

• Armor layerAdopting steel tape armor to improve the mechanical strength and resistance to external damage of the cable.

• sheathUsing polyvinyl chloride material, it has excellent weather resistance and corrosion resistance, protecting the cable from external environmental erosion.

3、 Application scenarios

1. power industryNH-KVV22 cable is widely used in transmission lines of power systems, especially in harsh environments such as high temperature, high humidity, and corrosion, to ensure the stability and safety of power transmission.

2. chemical industryIn chemical production, high temperature, high humidity, corrosion and other environments are often involved. NH-KVV22 cable can exert its excellent performance in such environments, ensuring the safety and stability of the production process.

3. petroleum industryDuring the process of oil extraction and processing, the environmental temperature and humidity will change, and there is a certain degree of corrosiveness. NH-KVV22 cable has excellent fire resistance, corrosion resistance, and high mechanical strength, which can ensure the safety and stability of oil extraction and processing processes.

4. public facilitiesPublic facilities such as subways, stations, and airports have high requirements for the fire resistance of cables. NH-KVV22 cables are widely used due to their excellent fire resistance and good electrical performance.

4、 Precautions for use

1. Laying temperatureThe laying temperature of the cable should not be lower than 0 ℃ to ensure the normal use of the cable.

2. bend radiusWhen laying cables, it should be ensured that the bending radius of the cable is not less than 12 times the outer diameter of the cable to avoid damage during the bending process.

3. Avoid mechanical damageDuring the laying and use of cables, mechanical damage such as impact and crushing should be avoided.

4. regular inspectionRegularly inspect and maintain cables to ensure their normal operation and service life.

In conclusion,NH-KVV22 fire-resistant control cableIt is a high-performance and widely used cable product that can maintain the stability and safety of power transmission in various harsh environments.