Nexans

Hans Kvarme

Jan Erik Karlsen

Per Arne Osborg

Lars Hennig

Anders Henrik Bla

Vegar Syrtveit Larsen

A piggyback cable () has a copper conductor () with a triple extruded insulation system including a conductor screen (), an insulation layer (), and an insulation screen (), an inner sheath () surrounding this insulation system, and an outer sheath (), the space between the inner () and outer () sheaths being filled with protective elements. The protective elements have thermoplastic () elements arranged together to form at least one layer helically wound around the said cable ().

Subsea pipeline direct electric heating cable with a protection system

The present invention concerns an elongated object () including a cable () being surrounded by an external protection (), said external protection comprising at least one protection layer including at least two elongated extruded hollow profiles (), each elongated extruded hollow profile comprising at least one elongated empty cavity (), characterized in that each profile () of said external protection is a single element along the whole length of the cable portion to be protected, and that the total cross section area of the empty parts of the external protection represents at least 20% of the total cross section area of the external protection.

Growing community of inventors

As, Norway

Hans Kvarme