METHOD FOR INTRODUCING A PIPE INTO A CABLE DUCT MANHOLE Russian patent published in 2022 - IPC H02G9/10 

FIELD: cable channels.

SUBSTANCE: method relates to manholes of cable communication channels and cable channels suitable for them and is intended for laying, installation and maintenance of communication cables and their interchanges (branchings). The method is characterized in that a spiral sleeve is screwed onto the end of a spiral polymer pipe for cable ducts so that the length of the end of the pipe protruding from the sleeve is greater than the wall thickness of the well, an adapter having a cylindrical shape is inserted into the hole in the wall of the well, from the side of its internal cavity, and spiral thread elements on the outer cylindrical surface, and the adapter is screwed into the inner cavity of the pipe until it stops, after which the coupling is screwed from the pipe until it stops against the outer surface of the well wall, and the adapter flange into the inner surface of the well wall.

EFFECT: simplification of the process of inserting a spiral polymeric cable duct pipe into a concrete manhole with the provision of the necessary tightness of the connections.

2 cl, 7 dwg