| 摘要 |
The protective sheath is intended to cover a flexible tube or hose used for the conveyance of a working fluid to an hydraulic or pneumatic device and is formed of a strip that is helically wound around the outer surface of the flexible tube. The strip comprises: a) a core of electrically insulating and flame retardant material, and b) a core-covering layer of electrically conductive and flame retardant material having a first surface portion intended to contact the outer surface of the flexible tube, and a second surface portion opposite to said first surface portion and forming the on sight surface of the strip when it is wound around the flexible tube. The core-covering layer of electrically conductive material dissipates the electrostatic charges which are formed on the outer surface of the flexible tube and protects the outer surface of the flexible tube from wear and flame by performing a flame retardant action |
