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What is the difference between YJY and YJV cables

Both YJY and YJV are commonly used wire and cable products in engineering construction and are used in transmission lines. But the models and specifications of the two are different. Is there any difference between the material and price of the sheath?

YJY power cable introduction
XLPE insulated polyethylene sheathed power cable, the power cable made of polyethylene material has excellent thermomechanical properties, superior flame retardant performance, current carrying capacity is better than ordinary YJV power cable, it also improves the performance of the cable . Electrical properties and thermal properties.
YJ - Cross-linked polyethylene
Y - Polyethylene Sheath
Specifications: 1mm2, 1.5mm2, 2.5mm2, 4mm2, 6mm2, 10mm2, 16mm2, 25mm2, 35mm2, 50mm2, 70mm2, 95mm2, 120mm2, 150mm2, 185mm2, 240mm2, 300mm2.
Structure: conductor, insulating layer, filling layer, shielding layer, steel tape armor, sheath layer.
Wire core: single core, 2 cores, 3 cores, 4 cores, 5 cores, 3+1 cores, 3+2 cores, 4+1 cores.

Insulation of cables - XLPE
Cross-linked polyethylene is a cross-linked polyethylene that converts linear molecular structure polyethylene into a three-dimensional network structure by chemical and physical methods, thereby greatly improving the thermomechanical properties of polyethylene and maintaining good electrical properties. performance.

YJY cable application
It can be laid indoors, in pipelines or in loose soil, but it cannot withstand tension and pressure. It can be used in distribution networks or industrial devices with voltage levels of 1-1000kV and above. Such as power stations, urban lighting lines, high-voltage tower power transmission, basement power transmission and other places.

Advantages of YJY cable
YJY cable has simple structure, moderate softness and hardness, and is easy to transport, but it is not compressive, so care should be taken when storing or transporting.
According to the requirements of some users, YJY power cables can produce flame-retardant, fire-resistant (NH), low-smoke and low-halogen cables. These cables have high safety, practicality and environmental protection. Strong performance.

YJV power cable
YJV cable is also called XLPE insulated PVC sheathed power cable.
Among them, YJ means XLPE insulation, V means PVC sheath.
YJV means copper core cable,
And YJLV means aluminum core cable.

YJV power cable laying method
YJV, YJLV copper (aluminum) core XLPE insulated PVC sheath is laid indoors, in ditches, pipelines, and can also be buried in loose soil, but cannot bear pressure and external mechanical force.
YJV22, YJLV22 copper (aluminum) core XLPE insulated steel tape armored PVC sheathed power cables laid underground, able to withstand external mechanical force.

YJV Power Cable Features
The maximum rated temperature of the cable conductor is 90°C, and the maximum temperature of the cable conductor does not exceed 250°C when short-circuited (the longest duration does not exceed 5S). The ambient temperature when laying cables should not be lower than 0°C. Allowable bending radius during laying: single-core cables are not less than 15 times the outer diameter of the cable; multi-core cables are not less than 10 times the outer diameter of the cable.
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