XLPE cable material is a polyethylene containing organic peroxide. This peroxide reacts chemically with polyethylene under high temperature, high pressure and inert gas environment, turning thermoplastic polyethylene into thermosetting (elastomer) polyethylene, namely XLPE.
Because polyethylene is a linear molecular structure that is easily deformed at high temperatures, the cross-linking process turns it into a mesh structure. This structure has strong resistance to deformation even at high temperatures.
XLPE cables have excellent electrical properties. The dielectric loss is smaller than that of paper insulation and PVC insulation, so XLPE cables have smaller capacitance.
XLPE cable has excellent electrical properties. The dielectric loss is smaller than that of paper insulation and PVC insulation, and the capacitance of XLPE cable is also small. Therefore, the charging current and ground fault current can also be reduced in the absence of an effective star grounding system. Another advantage of XLPE cable is that it is extremely easy to lay. XLPE cable has a smaller bending radius, it is lighter than other similar cables and has a simpler terminal treatment. Since XLPE cable does not contain oil, there is no need to consider the route when laying XLPE cable, and there is no situation where it cannot be laid due to oil. The excellent anti-chemical properties and super heat-resistant deformation determine that the cross-linked polyethylene cable can allow human current to pass under normal operating temperature (90°C), short-term fault (130°C) and short circuit (250°C) conditions.
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