XLPEeristeellä

XLPEeristeellä refers to electrical cables insulated with cross-linked polyethylene (XLPE). XLPE is a thermosetting polymer known for its excellent electrical insulation properties, high mechanical strength, and good resistance to heat and chemicals. It is produced by chemically cross-linking polyethylene molecules, which improves its thermal stability and durability compared to standard polyethylene.

The manufacturing process for XLPE insulation involves extruding polyethylene onto the conductor and then subjecting it to a cross-linking process. This can be achieved through various methods, including chemical cross-linking using peroxides or silanes, or by electron beam irradiation. Each method imparts slightly different characteristics to the final insulation material.

Cables with XLPEeristeellä are widely used in power transmission and distribution systems due to their ability to operate at higher temperatures and withstand greater electrical stresses than many other insulation materials. They are suitable for medium, high, and extra-high voltage applications, both underground and overhead. The material's resistance to moisture and its long service life also make it a cost-effective choice for many power infrastructure projects. Its flexibility and relatively light weight compared to older insulation types facilitate easier installation.