Non-metallic support stanchion

摘要

A cable rack arm and support system suitable for underground power and communication service is made from a non-metallic polymer that will not rust or corrode. The cable rack arm is adapted for mounting to existing underground stanchions or for stanchions of a more modern design. Each cable rack arm is securely mounted to the stanchion. Each cable rack arm then supports one or more cables in cable rests or saddles molded atop the arm, thus keeping the cables accessibly organized in a manhole, tunnel or vault. Plastic cable ties may be used to secure the cables to the cable rack arms. Nonmetallic pins may also be used to secure the cable rack arms to the stanchions. The stanchions may be made of nonmetallic composite material that includes a fiberglass cross-layered knitted apertured mat for increased strength.

主权项

1. A method of supporting power and communication cables, comprising:
furnishing a pultruded composite nonmetallic cable arm support stanchion, wherein the nonmetallic stanchion comprises a pultruded composite material having at least one layer of fiber reinforcement transverse to a direction of pultrusion, the at least one layer transverse plus or minus fifteen degrees; attaching a nonmetallic cable rack arm to the nonmetallic cable arm support stanchion; attaching at least one power or communication cable to a top of the cable rack arm, wherein the cable rack arm and flanges of the nonmetallic stanchion face in a same direction, wherein the nonmetallic cable arm includes an interface near a proximal end of the nonmetallic cable rack arm, the interface comprising a to relief, horizontal orifices and a vertical slot connected with the horizontal orifices and the to relief, the vertical slot further comprising side reliefs adjoining a proximal end surface of the arm, the interface suitable for mounting the rack arm on a single flange stanchion; and rotating the nonmetallic cable rack arm upwardly via the top relief of the nonmetallic cable rack arm when a fault occurs in the at least one power or commmunication cable secured to and supported by the nonmetallic cable rack arm and the pultruded composite nonmetallic cable arm support stanchion.