Alcatel N.v.

Nexans

Alcatel Cable

Solvay

Bernard Aladenize

Alain R Le Mehaute

Stanislas Galaj

Etienne Hannecart

Pierre Mirebeau

Claude Franquinet

Hakim Janah

Patrice Tran

Daniel Acroute

Robert Gadessaud

The high or very high voltage DC cable has extruded polymeric insulation made out of a styrene-containing material. The material of the insulation is constituted by a mixture comprising polyethylene, a hydrogenated block copolymer of styrene, and an anti-oxiding agent, with the styrene content by mass being 11% to 18%, and the material is not cross-linked. The cable is suitable for use as a DC power cable.

High and very high voltage DC power cable

Material for semiconductive screening

The invention concerns an electrically insulating body including at least two polymer materials and a method of making such a body. It is characterized in that its internal structure (61) is mainly formed by a first polymer material and that its surface structure (60, 62) is mainly formed by a second polymer material, said first polymer material having a higher molecular weight than said second polymer material. The proportion in the body of the first polymer material relative to the second polymer material reduces progressively from the internal structure (61) towards the surface structure (60, 62). The invention is applicable especially to insulating electric conductors (26) and enables insulators to be obtained having both a high dielectric strength and a good quality of shape.

Method of making an insulating body of high dielectric strength

Growing community of inventors

Epinay sur Orge, France

Bernard Aladenize