YJV and VV are two cables with different insulation mat […]
YJV and VV are two cables with different insulation materials. Generally, indoor permanent projects tend to choose YJV cables. VV cables are generally used in low voltage systems, and YJV cables are mostly used in high voltage systems. YJV cables are superior to VV cables 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, allowing a maximum operating temperature of 90 °C.
VV—Voltage level (k V) 1 to 6, allowing a 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. VV cable (VLV) type cable conductors operate at a maximum rated temperature of 70 degrees Celsius, and when short-circuited (duration is less than 5 seconds), the maximum temperature does not exceed 160 degrees Celsius.
2, YJV cable (YJLV) cable conductors run at a maximum rated temperature of 90 degrees Celsius, short circuit (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 cable is larger.