| 摘要 |
The invention concerns a conduit (1) comprising an internal cavity (3) for receiving a cable or pipe and a guide slot (5) extending continuously over the whole conduit length for a detecting insulated electrical conductor (4). The invention is characterised in that the cavity (3) and the guide slot (5) are made of a single piece and are delimited in a cylindrical sheath (5) obtained by extrusion without external protuberance, and the guide-slot (5), formed between the cavity (3) and the conduit (1) outer wall, is separated from the cavity by a partition (8) linking two internal generators of the sheath (2) to be sealed over the conduit length, opposite the cavity (3) and from outside, said guide-slot (5) containing, freely and without clamping, a portion of the insulated electrical conductor (4) longer than the conduit (1). |
