Five Main Types of photovoltaic power systems cable

1. Power cable: NH-VV
NH-VV copper core PVC insulated PVC sheathed fire-resistant power cable. Suitable for rated voltage 0.6/1KV.
Use characteristics: Long-term allowable working temperature is 80℃. Allowable bending radius during laying: single-core cables are not less than 20 times the cable outer diameter, and multi-core cables are not less than 12 times the cable outer diameter. When the cable is laid, the ambient temperature is not lower than 0 degrees Celsius without pre-heating. Voltage laying is not limited by the drop.
Laying: Suitable for occasions with fire resistance requirements, and can be laid indoors, in tunnels and trenches. Note that it cannot withstand external mechanical forces and can be buried directly in the ground.

2. Control cable: ZRC-KVVP
ZRC-KVVP copper core PVC insulated PVC sheathed braided shielded control cable. It is suitable for control, monitoring circuit and protection circuit of AC rated voltage 450/750V and below.
Features: Long-term allowable use temperature is 70℃. The minimum bending radius is not less than 6 times the outer diameter.
Laying: Generally, it is laid in indoor, cable trench, pipeline and other fixed places that require shielding and flame retardancy.

3. Communication cable: DJYVRP2-22
DJYVRP2-22 polyethylene insulated PVC sheathed copper wire braided shielded armored computer special soft cable, suitable for electronic computers and automation connection cables with high requirements for interference prevention at rated voltages of 500V and below.
Features: DJYVRP2-22 cable has the characteristics of oxidation resistance, high insulation resistance, good voltage withstand, and low dielectric coefficient. While ensuring service life, it can also reduce crosstalk and external interference between loops, and has high signal transmission quality. The minimum bending radius is not less than 12 times the cable outer diameter.
Laying: The cables are allowed to be fixedly laid and used under the conditions of ambient temperature of -40℃~50℃. Laying indoors, cable trenches, pipelines and other places requiring electrostatic shielding.

4. Communication cable: RVVP
Copper core PVC insulated PVC sheathed insulated and shielded flexible cable RVVP, also known as electrical connection anti-interference flexible cable, is a communication cable suitable for anti-interference, safe and efficient data transmission such as alarms and security.
Features: Rated working voltage 3.6/6KV middle voltage cable , long-term working temperature of cable conductor is 90℃, minimum allowable bending radius is 6 times of cable outer diameter. It is mainly used as a communication cable for anti-interference. Laying: The RVVP cable cannot be exposed to sunlight, and the bottom core must be well grounded. The weak current circuit communication cables that need to suppress the intensity of electrical interference should be laid in steel pipes and boxes. When laying parallel to the power cable, the distance should be kept away as far as possible.

5. RF cable: SYV
Solid PE insulated PVC sheathed radio frequency coaxial cable SYV.
Features: The commonly used video cables in monitoring are mainly SYV75-3 and SYV75-5. If you want to transmit video signals within 200 meters, you can use SYV75-3, and if you want to transmit video signals within 350 meters, you can use SYV75-5.
Laying: It can be laid through a pipe.