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Fibre Glass Cable Support Systems SPI Cable Support Systems offer engineers a structural product for solving many design and plant engineering problems, enabling long term reliable support of expensive and often critical cables.SPI Cable Support Systems possess unique properties which enable them to resist many corrosive environments, particularly where conditions indicate that conventional materials will not provide an economic service life. |
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Fibre Glass Cable Support Systems |
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CHEMICAL AND CORROSION RESISTANCE SPI Cable Support Systems resist acids, salts, alkalis and a wide range of aggressive chemicals and environments which have drastic effects on galvanised steel and aluminium. Even coated steel or aluminium products can suffer damage from minute scratches during installation or in service. HIGH STRENGTH TO WEIGHT RATIO SPI Cable Support Systems have a superior strength to weight ratio compared to steel or aluminium whilst maintaining a similar structural integrity. LIGHTWEIGHT AND MANAGEABLE Pultruded fibreglass profiles used in SPI Cable Support Systems have a specific gravity of one-fourth that of steel and two-thirds that of aluminium, allowing for considerably simplified erection and handling. Unlike stainless steel, SPI Cable Support Systems can be easily cut and drilled on site using only hand tools. NON CONDUCTIVE AND NON MAGNETIC As SPI cable ladder and tray is non conductive, there is no concern of transmitting electricity into the support system from damaged cables. Additionally, there is no requirement for special support conditions to prevent electrolytic corrosion. Non-conductive and non-magnetic features mean a safer support system. TRANSPARENT TO RF TRANSMISSION Fibreglass composites do not cause electromagnetic interference and are transparent to radio frequency transmissions. COST PERFORMANCE Very favourable results have been demonstrated with SPI Cable Support Systems, emphasising low installation costs, long service life and a minimum of maintenance. PRODUCT FEATURES DESIGN SPI Cable Support Systems are designed to comply with the requirements of NEMA specification FG1-1986 under three load/span classifications.
Cable ladder produced under any of these classifications is available in lengths of either 3m or 6m and in widths from 150mm to 900mm. Rung spacings are available at either 150 or 300mm centres. All fittings are based on a standard radius of 600mm. Variations to these lengths, widths, rung spacings and radius are available to order. Cable Tray is produced in standard lengths of 3 metres. Standard widths range from 100 to 300mm. Other tray widths can be made to order. Tray can be provided plain or with a perforated base. All cable support system components are manufactured using isophthalic polyester fire retardant resin systems that enable compliance to the VO rating of UL94, a flame spread rating of less than 25 for ASTM E-84 and a self extinguishing rating under ASTM D635. CONSTRUCTION All cable support systems are designed using high strength to weight ratio pultruded structural composite profiles.The ladder type system comprises two channel side rails connected by transverse rungs.Cable trays are constructed from high strength pultruded channel profile.All fittings, horizontal bends, risers, reducers, tees, etc. used to enable cable routings to deviate from a straight line onto another plane, are constructed from the same profiles as the straight ladder sections.Standard joining of cable ladder or tray sections and fittings, is accomplished via 316 stainless steel splice plates and fasteners.Fibreglass joining accessories are also available for systems requiring total insulating properties.Straight sections and fittings can be pre-drilled to accept joining accessories, if desired. APPLICATION A wide variety of industries take advantage of the benefits of SPI Cable Support Systems.
SUGGESTED CABLE SUPPORT SPECIFICATION
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