1) The characteristics of the long-term breakdown voltage

The characteristics of the long-term breakdown voltage of the cable frequency depend on the diameter of the conductor and the thickness of the insulator. Breakdown of the relationship between voltage and insulator thickness.

2) The characteristics of the short-term breakdown voltage

After the cable is charged, the frequency punch voltage will soon drop a bit, and then reach the saturation point. The applied voltage quickly rises to a certain value, which remains until the time it gets punched.

3) Media power factor

Typical media power factor and temperature. At higher usage temperatures, the media power factor of cross-linked polyethylene insulated cables is very small, showing its advantages.

4) Volume resistivity

Compared with rubber, the relationship between volume resistivity and temperature is higher in volume resistivity of cross-linked polyethylene insulated cables, and does not decrease at high temperatures.

XLPE绝缘材料与击穿电压关系

1）长时间击穿电压的特性

电缆工频长时间击穿电压的特性取决于导体的直径和绝缘体的厚度。击穿电压和绝缘体厚度之间的关系。

2）短时间击穿电压的特性

在电缆充电后工频击穿电压很快会下降一些，然后达到饱和点。外加电压快速升到一确定值，该值保持到获得击穿的时间。

3）介质功率因素

典型的介质功率因素与温度。在较高使用温度下，交联聚乙烯绝缘电缆的介质功率因素很小，显示了它的优点。

4）体积电阻率

体积电阻率与温度的关系与橡胶相比，交联聚乙烯绝缘电缆的体积电阻率较高，而且在高温时不降低。