What is the difference between YJV cable and VV cable?
Source : Tianxing Cable | Release date : 2024-05-06
YJV cable and VV cable are basically the same in function, and both belong to the same category of power cables used to transmit and distribute electrical energy, but the difference is also very obvious. Here's a closer look at the differences between the two.
01 Difference between name and insulation material
VV cable is called copper core PVC insulated PVC sheathed power cable
YJV cable is called copper core crosslinked polyethylene insulated polyvinyl chloride sheathed power cable,
YJV insulation material is crosslinked polyethylene; VV insulation is made of polyvinyl chloride.
2, VV is a plastic force cable, YJV is a cross-linked cable, YJV cable its insulation layer performance is better than the plastic force cable.
Plastic power cable: plastic insulated and sheathed power cable, referred to as plastic power cable.
Cross-linked cable: The insulation layer of the cross-linked material cable, the commonly used material is crosslinked polyethylene (XLPE).
3. YJV cross-linked the insulation material to improve the heat resistance temperature, while VV did not.
02 Differences in usage features
1, the use of temperature - VV power cable conductor running high rated temperature of 70 degrees Celsius, short circuit (duration less than 5 seconds) the higher temperature does not exceed 160 degrees Celsius;
YJV cross-linked cable conductor operating high rated temperature of 90 degrees Celsius, short circuit (duration less than 5 seconds) high temperature does not exceed 250 degrees Celsius.
3, carrying capacity - YJV cable operating temperature of 90 degrees, while VV is only 70 degrees, the same cross-sectional YJV cable carrying capacity is large.
The allowable carrying capacity of a conductor depends on its allowable operating temperature
03 Difference in operating voltage range
Under normal circumstances, YJV cables operate in the voltage range of 6 ~ 500KV, while VV cables are 1 ~ 6KV. Therefore, VV power cables are generally used in low-voltage environments, while YJV includes high and low-voltage environments, which is why YJV cable manufacturing process requirements are higher.
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