Ringed tubular sheath for protecting electric cable of e.g. car, has envelope for covering ninety percentage of circumference of sheath's external surface, and made of sound-absorbent material or heat resistant material

摘要

The sheath (1) has an envelope (2) for covering 90 percentage of the circumference of an external surface of the sheath and made of sound-absorbent material or heat resistant material. The sound-absorbent material is selected from baize and foam. The heat resistant material is constituted by aluminized sheet. An external shell (5) has an axial end (34) located in a zone that is not surrounded by the envelope. The external shell is superimposed on an internal shell (4). Independent claims are also included for the following: (1) a method for fabricating a ringed tubular sheath (2) an installation for fabricating a ringed tubular sheath (3) a method for protecting an electric cable.