| 摘要 |
The invention concerns a wiring duct comprising, along a generally U-shaped transverse section, a base (11) and two side wings (12), with, here and there, on at least one of the side wings (12), openings (13) for providing locally entrance or exit for at least one electric cable. The invention is characterised in that said wiring duct has, in line with at least one of the openings (13) of at least one of the side wings (12), between said opening (13) and the base (11), an least one orifice (25). The invention is applicable in particular to switchgear cabinet wiring ducts.
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