Types of cables for photovoltaic power generation systems

Photovoltaic special cables, power cables, control cables, communication cables, radio frequency cables
Photovoltaic cable: PV1-F1*4mm2
The cable from the string to the combiner box is generally used: photovoltaic special cable PV1-F1*4mm2.
Features: The photovoltaic cable has a simple structure. The polyolefin insulation material used in it has excellent heat resistance, cold resistance, oil resistance, and ultraviolet resistance. It can be used under harsh environmental conditions and has a certain mechanical strength.
Laying: It can be protected through the pipe, and the component bracket is used as the channel and fixing of the cable laying to reduce the impact of environmental factors.
Power cable: ZRC-YJV22
Steel tape armored flame-retardant cross-linked cable ZRC-YJV22 is widely used in: combiner box to DC cabinet, DC cabinet to inverter, inverter to transformer, transformer to power distribution device, power distribution device to the power grid connecting cables.
The common nominal cross-sections of ZRC-YJV22 cables in photovoltaic power generation systems are: 2.5mm2, 4mm2, 6mm2, 10mm2, 16mm2, 25mm2, 35mm2, 50mm2, 70mm2, 95mm2, 120mm2, 150mm2, 185mm2, 240mm2, 300mm2.

(1) The texture is hard, the temperature resistance grade is 90°C, it is easy to use, has the characteristics of low dielectric loss, chemical corrosion resistance and no drop limit for laying.
(2) It has high mechanical strength, good resistance to environmental stress, good thermal aging performance and electrical performance.
Laying: It can be buried directly, suitable for fixed laying, and adapt to the needs of different laying environments (underground, water, trenches and tunnels).
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°C. 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. The 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 the action of external mechanical forces and can be directly buried in the ground.

Control cable: ZRC-KVVP
ZRC-KVVP copper core PVC insulated PVC sheathed braided shielded control cable. It is suitable for the 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 indoors, cable trenches, pipes and other fixed places that require shielding and flame retardancy.
Communication cable: DJYVRP2-22
DJYVRP2-22 polyethylene insulated PVC sheathed copper wire braided shielded armored computer special soft cable is 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 withstand voltage, and low dielectric coefficient. While ensuring the service life, it can also reduce the crosstalk and external interference between circuits, and the signal transmission quality is high. The minimum bending radius is not less than 12 times the cable outer diameter.
Laying: The cable is allowed to be fixedly laid and used under the ambient temperature of -40℃~50℃. Laying indoors, cable trenches, pipelines and other places that require electrostatic shielding.
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, long-term working temperature of the cable conductor is 90℃, and the minimum allowable bending radius is 6 times the outer diameter of the cable. It is mainly used as a communication cable to play a role in anti-interference. Laying: The RVVP cable should not 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.
RF cable: SYV
Solid PE insulated and 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.