Method for producing electrical cables coated with...

Details Method for producing electrical cables coated with... Method for producing electrical cables coated with...

H - Electricity

01

B

H01B 13/14 (2006.01) C08L 23/08 (2006.01) H01B 3/44 (2006.01) C08L 51/06 (2006.01)

Patent

CA 2353639

In a method for producing electrical cables coated with cross-linked polyethylene, a polyethylene granulate is mixed with a liquid silane-- containing cross-linking agent, the granulate thus prepared is melted in an extruder and extruded onto the electrical cable, and the extruded coating is cross-linked in the presence of water or steam. A mixture of granular material of a polyethylene homopolymer and a polyethylene copolymer is coated with the cross-linking agent. The copolymer content in the coating on the cable is between 1 and 8% by weight.

Selon une méthode destinée à produire des câbles électriques revêtus de polyéthylène réticulé, du polyéthylène en granulés est mélangé avec un agent de réticulation liquide contenant du silane, puis les granulés ainsi préparés sont fondus dans une extrudeuse, puis extrudés sur le câble électrique, et le revêtement extrudé est réticulé en présence d'eau ou de vapeur. Un mélange granulaire composé de polyéthylène homopolymérique et de polyéthylène copolymérique est recouvert avec l'agent de réticulation. La teneur en copolymère dans le revêtement du câble se situe entre 1 et 8 % en poids.

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