Introduce the difference between the YJV power cord and the VV power cord

YJV and VV are two kinds of power cables with different insulation materials. 

Generally, indoor permanent projects tend to choose YJV power cables. 

VV power cables are generally used in low-voltage systems, and YJV power cables are mostly used in high-voltage systems. 

YJV power cable is superior to VV power cable in temperature resistance, pressure resistance, and corrosion resistance. Just the price is more expensive. 

YJV—copper core XLPE insulated PVC sheathed power cable.

VV—copper core PVC insulated PVC sheathed power cable.

YJV—voltage level (k V) 6 to 500, the maximum allowable operating temperature of 90 °C.

VV—Voltage level (k V) 1 to 6, allowing the maximum operating temperature of 65 to 70 °C.

The VV cable is a PVC insulated PVC sheath and is a thermoplastic material.

The YJV cable is a cross-linked PVC insulated PVC sheath and is a thermoset material.

Because of the different materials, VV and YJV cables allow long-term operation at the highest temperature.

1. The maximum rated temperature of VV power cable (VLV) cable conductors is 70 degrees Celsius. When short circuit (duration is less than 5 seconds), the maximum temperature does not exceed 160 degrees Celsius.

2. YJV power cable (YJLV) cable conductors run at a maximum rated temperature of 90 degrees Celsius, in short circuits (duration less than 5 seconds) maximum temperature does not exceed 250 degrees Celsius.

Therefore, the current carrying capacity of the two cables is different, and the YJV is larger.

There are also differences in production equipment and process manufacturing:

VV is a plastic cable, YJV is a cross-linked cable, and its insulation performance is superior to that of plastic cable.

YJV only cross-links on the insulating material to increase the heat-resistant temperature, while VV does not.

YJV cable has a working temperature of 90 degrees, while VV is only 70 degrees. 

The YJV cable with the same cross-sectional area has a large current carrying capacity.

VV cable conductors operate at a maximum temperature rating of 70 degrees Celsius, and in the event of a short circuit (duration less than 5 seconds), the maximum temperature does not exceed 160 degrees Celsius.

YJV cable conductors operate at a maximum temperature of 90 degrees Celsius, and when short-circuited (duration less than 5 seconds), the maximum temperature does not exceed 250 degrees Celsius.

YJV is better than VV in the long run (long service life, etc.), but more expensive than VV. From the maximum height allowed for the short circuit: YJV is 250 degrees and VV is 160, 140. 160 degrees.

Guangdong Foshan Yuejiaxin Wire & Cable Factory - 20 years of focus on industrial machinery equipment cable production customization mainly includes automation of industrial equipment cable, lighting special wires, electrical equipment wire customization, and power cable engineering. 

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