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
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.
대표청구항▼
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 pul
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; androtating 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. 2. The method of claim 1, further comprising securing the cable rack arm to the nonmetallic stanchion with at least one fastener, wherein the at least one fastener comprises a material selected from the group consisting of nonmetallic, nonmetallic composite and metallic. 3. The method of claim 2, wherein the at least one fastener penetrates at least one orifice in at least one flange of the nonmetallic stanchion and at least one orifice in the nonmetallic cable rack arm. 4. The method of claim 1, further comprising securing the cable rack arm to the nonmetallic stanchion by inserting a pin having a circular cross section into orifices in the cable rack arm and the stanchion. 5. The method of claim 1, further comprising securing the at least one cable to the cable rack arm with a cable tie. 6. The method of claim 1, wherein the nonmetallic stanchion further comprises yarn arranged for joining tows of the at least one layer of fiber reinforcement. 7. The method of claim 1, wherein the nonmetallic cable arm support stanchion comprises a cross section selected from the group consisting of an L-shape and a T-shape. 8. The method of claim 1, wherein the stanchion further comprises a web with web orifices for attaching to a structure and at least one flange with flange orifices for mounting the nonmetallic cable rack arm. 9. A method of supporting power and communication cables, comprising: furnishing a nonmetallic cable arm support stanchion;attaching a cable rack arm having an interface to the nonmetallic cable arm support stanchion, wherein the interface includes a top relief allowing upward rotation of the cable rack arm from a horizontal position when mounted to the stanchion, the interface also comprising horizontal orifices and a vertical slot connected with the horizontal orifices, the vertical slot further contiguous with the top 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;securing at least one power or communication cable to a top of the cable rack arm; androtating 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 communication cable secured to and supported by the nonmetallic cable rack arm and the pultruded composite nonmetallic cable arm support stanchion. 10. The method of claim 9, further comprising securing the at least one power or communication cable to the cable rack arm with a cable tie. 11. The method of claim 9, wherein the interface of the cable rack arm comprises a contiguous space with horizontal orifices and a vertical slot connected with the horizontal orifices and the top relief. 12. The method of claim 11, wherein the top relief is placed distal to the vertical slot and to the horizontal orifices. 13. The method of claim 9, wherein the method further comprises furnishing the cable rack arm, the cable rack arm further comprising: an upper portion formed between a proximal end and a distal end of the cable rack arm, the upper portion adapted for holding the at least one power or communication cable;a flanged lower portion opposite the upper portion, the flanged lower portion formed at an acute angle to the upper portion; anda web connecting the upper portion to the lower portion. 14. The method of claim 13, further comprising furnishing the cable rack arm, wherein the flanged lower portion is about the same width as the upper portion. 15. The method of claim 13, further comprising molding the cable rack arm as a single piece of a nonmetallic material. 16. A non-metallic cable support system, comprising: a nonmetallic stanchion comprising a central web; at least one flange connected to the central web, the at least one flange oriented at about a right angle to the central web, wherein the central web and the at least one flange are formed as an integral whole of resin with glass-fiber reinforcement by a pultrusion process, the glass-fiber reinforcement formed of a plurality of layers of fiberglass reinforcement, each layer comprising a first plurality of longitudinal tows and a second plurality of transverse tows, the pluralities joined to each other with yarn to form the layer;a plurality of web orifices in the central web for connecting the central web to a support structure;a plurality of flange orifices in the at least one flange for supporting a cable rack arm for mounting to the non-metallic support stanchion; anda non-metallic cable rack arm comprising an upper portion, a lower portion and a web connecting the upper portion and the lower portion, the upper portion comprising at least one flat area and one curved area for supporting a power or communications cable, the non-metallic cable rack arm also including an interface comprising a top relief with a contiguous vertical slot and with contiguous horizontal orifices, the vertical slot further comprising contiguous side reliefs adjoining a proximal end surface of the non-metallic cable arm,wherein the non-metallic support stanchion supports the non-metallic cable rack arm via the plurality of flange orifices of and via the interface of the non-metallic cable rack arm. 17. The non-metallic cable support system of claim 16, further comprising a layer of veil mat on an outer surface of the glass-fiber reinforcement. 18. The non-metallic cable support system of claim 16, wherein the central web and the at least one flange comprise a plurality of layers of the glass-fiber reinforcement, the layers joined to each other in an integral structure by a knitted, stitched, purled or woven mesh of fibers. 19. The non-metallic cable support system of claim 16, wherein the central web and the at least one flange comprise a plurality of layers of the glass-fiber reinforcement, and wherein at least one of the layers comprises a cross layered knitted aperture mat. 20. The non-metallic cable support system of claim 16, wherein the support stanchion comprises a cross-section selected from the group consisting of an L-shape, a C-shape and an E-shape. 21. 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;attaching a nonmetallic cable rack arm to the nonmetallic cable arm support stanchion, wherein the nonmetallic cable rack arm and flanges of the nonmetallic stanchion face in a same direction, the nonmetallic cable rack arm further comprising 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;attaching at least one power or communication cable to a top of the cable rack arm; androtating 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 communication cable secured to and supported by the nonmetallic cable rack arm and the pultruded composite nonmetallic cable arm support stanchion. 22. The method of claim 21, 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.
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