Supply box for electric ducting

Claim 1

A supply box capable of being mounted on the ends of an electric distribution ducting of the type comprising a rigid or semi-rigid tubular conduit containing a plurality of axial conducting elements disposed in the same configuration at least at both ends of the ducting, these conducting elements each having, depending on its position in said configuration, a functional character distinct from that of the other conductor elements, said box comprising connection devices arranged in accordance with said configuration, so as to be able to be coupled to said conductors at one or other of the ends of the ducting, these connection devices each comprising means for connection to a flexible conductor of a supply cable, such connection being made so that each flexible conductor has the same functional character as the connection device to which it is connected, said box further comprising functional character identification means including a movable part with two series of identification symbols and having foolproof means, this part being movable between two lockable positions, namely: a first position in which the foolproof means can be engaged with foolproof means provided at one of the ends of the ducting, so as to permit coupling of the connection devices to said conducting elements, and a second position in which the foolproof means may cooperate with corresponding foolproof means on the second end of the ducting so as to permit, at the second end, the coupling of the connection devices to said conducting elements, the identification symbols being adapted so that, for each of said two positions of said part, they indicate the functional characters of the flexible conductors to be connected to said connection means.