HEATED WINDABLE RIGID DUCT FOR TRANSPORTING FLUIDS, PARTICULARLY HYDROCARBONS

摘要

Disclosed is a windable rigid duct (1) for transporting hydrocarbons, comprising one or two sheaths consisting of an interior tube (2) and an exterior tube (3) which are coaxially aligned and are separated by an annular space. The inventive duct (1) also comprises at least one electric heating cable (10) which can be lengthened by at least 0.5 % without being damaged and is configured as a braided conducting core surrounded by an electric insulating jacket. The materials of which the cable is made undergo elastic deformation by less than 15 %, preferably less than 5 %, of the yield strength thereof.