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WIRE MESH TRAY TECHNICAL GUIDE

TECHNICAL GUIDEPOWERDATA2CONTROL PROCESS

Technical GuideCablofil - the global solutionOver 35 years ago, Cablofil invented the concept ofwire cable tray and introduced it to the Europeanmarket. The company’s continued success is theresult of on-going innovation and the ability of wirecable tray to adapt to any application. Since thenLegrand /Cablofil has become a leader in cablemanagement around the world with more than 94,000miles of tray installed globally. Today the companyis continuing to develop new labor-saving productsand installation techniques that are changing the waycables are supported in every aspect of the globalelectrical market.COMMITMENT TO THENORTH AMERICAN MARKETOver ten years ago, Cablofil was one of the firstwire cable tray manufacturers to market in the US,Mexico and Canada. Since then, demand for wirecable tray has expanded rapidly and in 2001, Cablofildemonstrated its commitment to the North Americanelectrical market by establishing a 78,000 sq. ft.dedicated manufacturing facility in Mascoutah, Illinois.This is the largest production facility of any baskettray manufacturer in North America and houses ourUS headquarters, a state-of-the-art assembly areawith centralized warehousing and shipping. With thiscommitment, we have emerged as the US leader inproduct innovation, quality control and timely delivery.TECHNICAL GUIDETHE FIRST NAME IN WIRE CABLE TRAYApplications - Sustainable DevelopmentPAGES 4-5Loading and SupportsPAGES 6-7Materials and FinishesPAGES 8-9Food Industry SafetyPAGES 10-11Electromagnetic InterferencePAGES 12-13Electrical ContinuityPAGES 14Grounding and BondingPAGES 15Energy SavingsPAGES 16Short Circuit TestingPAGES 17Efficient Data CablingPAGE 18Fiber Optic Data CablesPAGE 19Copper Data CablesPAGE 20-21Standards and DirectivesPAGES 22-23Fire ResistancePAGES 24-25Fire Protection: FlamestopperPAGES 26-27ReferencesPAGE 28Decision-Making SoftwarePAGE 29SpecificationsPAGE 30www.legrand.us/cablofil3

ApplicationsINFRASTRUCTURETECHNICAL GUIDEBUILDING SERVICES Hospitals Shopping centers Offices / Hotels Data centers / Technology centers Museums Schools / UniversitiesHEAVY INDUSTRY Mines / Quarries Steel Cement Petrochemicals Oil and gas Energy production4 Airports Stations Tunnels Bridges Stadia TelecommunicationsPROCESSING INDUSTRIES Chemicals / Pharmaceuticals Automotive / Equipment Glass / Wood / Textiles / Paper Food industry Water and waste treatment Ships / PlatformsPlease note! Not all steel wire cable trays are the same. The mechanical and electrical characteristics, tests, certifications, overall quality management aspects and recommendationsreferred to in this technical guide are relevant to CABLOFIL only and cannot, under any circumstances, be applied to other similar or imitation products.

SustainableDevelopmentPRODUCTION DESIGN Health and environment 100% recyclable steels Improving use of raw materials by 20% Reducing carbon footprint associated withmanufacturing and transportation Ensuring surface treatments comply with theRoHS DirectiveIMPROVED ENERGY EFFICIENCY Continuous improvement of manufacturingprocesses - ISO 9001 Improving installation time and energyconsumption on-site Reducing electricity consumption by improvingcable ventilationTECHNICAL GUIDESustainable development, once the preserve of legislators and governments, has become a fact of life for allstakeholders within society. Today’s project managers, whether in an industrial, services or infrastructurecontext, need to respect the environment and consider the human impact of their actions. CABLOFIL is fullyaware of these issues and behaves responsibly across all its sites and organizational structures. Legrand alsoextends this approach to its partners, with a view to developing a lasting commitment in this area.SITE MANAGEMENT: ISO 14001 Raising awareness amongpersonnel of environmentalmanagement at sites Reducing noise pollution through theuse of sound-proof rooms Ensuring more than 50% of industrial waste isrecycled, with no use of landfill Retaining, filtering and treating fumes Controlling water consumption - closedcooling systemwww.legrand.us/cablofil5

Loading and SupportsTECHNICAL GUIDEFirst and foremost, a cable tray must act as an effective and durable support for cables. The mechanical performance of cable tray products and accessories are tested against the demanding requirements imposed bythe NEMA VE-1 Underwriters Laboratories (UL) and international standard IEC 61537. These standards helpensure cable tray systems safety support cabling in a wide variety of applications.LOAD TESTINGLegrand/Cablofil WMCT has been engineered and tested perNEMA VE-1 to support loads that exceed it’s fill capacity. Foradditional data on load capacities and test methods, pleasevisit www.legrand.us/cablofil.SAFE WORKING LOAD (SWL) OFCABLOFIL SUPPORTS ACCORDINGTO IEC 61537 LOAD TESTINGProduct CategoryLOAD TABLEProductDescriptionCS BracketLoads in LBS/FT Per SpanCablofil TrayFill �CF30/100(1x4)4.34”––––FAS P –––FASL100130286–FAS L150110242FAS L20085187143CF30/300(1x2)CF54/50(2x2)6CSC BracketPart No.13.02”4.03”–32–15.1–11.1FAS L /150(2x6)12.09”46.527.620.319.1Wall SupportsFAS C BracketFAS L30065FAS C100120264FAS F54/300(2x12)24.18”71.647.134.631.7FAS C30050CF54/400(2x16)32.24”134.991.066.860.3FAS U1003066CF54/450(2x18)36.27”134.991.066.860.3FAS S U20080176FAS 162.8FAS U30080176CF105/100(4x4)15.97”68.346.434.130.5FAS S RP CRP CRP CF105/500(4x20)79.83”151.0129.995.488.7AS 150/600(6x24)137.64”228.5165.7121.791.3CRP ReinforcedBracketCeiling SupportsThreaded RodAS TrapezeHanging ClipSAS HangerBracket1/4”SAS B60132THRD 1/41072403/8”THRD 3/83257301/2”THRD 1/26011350Safe Working Load (SWL) Calculation:SWL Load applied along bracket Width ofbracket (W)/divided by 20 W/20 is maximumacceptable deflection, for example 12”/20 0.6”of deflection maximum.Please note! Not all steel wire cable trays are the same. The mechanical and electrical characteristics, tests, certifications, overall quality management aspects and recommendationsreferred to in this technical guide are relevant to CABLOFIL only and cannot, under any circumstances, be applied to other similar or imitation products.MeasuredDeflection

SAFETYSAFE WORKING LOADSWhile many Legrand/Cablofil supports utilized our FastAssembly System (FAS) which offer simple one-step lockingtabs that require no additional hardware to secure WMCTto supports, our WMCT have been tested to UL, CSA, NEMAVE-1 and IEC standards. Cablofil wire mesh tray and supports are designed to support any cable load allowed by theNEC when supports are spaced on 8’ spans. Only the heaviest cables (750 kcmil mulitconductor power or larger) mayrequire shorter spans. For specific loading go to the interactive table on www.legrand.us/cablofil and choose your exactcable for detailed cable capacity and span requirements.CABLOFIL is only designedto support cables. Under nocircumstances should it beused as a walkway.TECHNICAL GUIDEIn the event of critical overload,a mesh structure becomes likea hammock.POSITIONING OF THE SPLICE (general scenario applicable to all spans)To get the best performance from tray, choosing the right couplers is just as important as their positioning. CABLOFIL couplershave been designed and tested to provide high levels of mechanical and electrical performance. To maximise performance,follow the recommendations below:PossibleOptimumL/2L/5100% PERFORMANCEFor best results, place the couplers at1/5th of the way along the span.Not Recommended70% PERFORMANCEIf the coupling is at L/2, a coefficient of 0.7should be applied to the permissible load.Never put the support under coupler.POSITIONING OF THE SUPPORTSChanges of level and direction:Put supports in place before there is any deflection of the cable tray route. It is recommended to place supports at the startand end of 90 bends. A support must be positioned in the middle of large-radius bends.www.legrand.us/cablofil7

Materials and FinishesTECHNICAL GUIDEUncontrolled corrosion is a recurrent problem with all applications involving metals, it may lead to a reduction in theperformance and lifetime of the installation. Cable trays aremainly exposed to atmospheric corrosion. The environmentin which the cable trays are installed is therefore the maincriteria in the choice of surface treatment, or type of steel.air or water (condensedmoisture, rain or spray).The reaction producesthe chemical compoundFe(OH)3, more commonlyknown as rust.Atmospheric corrosion affecting metals involves a chemicalreaction between the iron found in steel and dioxygen inC OATED STEELSGalvanic protection of steel is a sacrificial process. Zinc,in contact with an oxidising agent, is converted into zinchydrocarbonate (white) thus protecting the steel.m Recommendedu PossiblePGEZmmIndoor installation, controlledenvironmentOutdoor installation, urbanenvironmentChemical industries, nitrateexplosivesMarine, sulphurous environmentAcid or alkaline environmentsGCDCmmuuuuuu304LHot dipped galvanized after manufactureGC ASTM A123 standard316LmmumFood production environmentmmHalogen environmentumSteel Grade QualityOur tray is constructed of precision engineered, high qualitysteel wire. ISO 9000 certified, Legrand/Cablofil wire cable trayis subjected to rigorous quality control at every stage of themanufacturing processes.Electrogalvanising after manufactureEZ ASTM A633 standardThe cable tray, manufactured using untreated steel wire, ispickled and then immersed in an electrolyte containing zinc. Zincis then deposited on it by passing an electric current. A smoothblue-grey, fairly glossy appearance is obtained to a greater orlesser extent depending on the pH value of the electrolytic bathused. The color and level of gloss have no negative or positiveeffect on the corrosion resistance of the coating.The cable trays or accessories, manufactured from untreatedsteel sheet or wire, are degreased and pickled before beingimmersed in a bath of molten zinc. The entire product istherefore covered with a thick layer of zinc.A light grey, rough appearance is obtained.NOTE: Any white marks due to the formation of zinchydroxycarbonate which might appear on the surface have noinfluence on the corrosion resistance.Geomet DC ASTM F1136 standardGeomet is a treatment based on zinc and aluminium. As itdoes not contain any chromium VI (hexavalent), it complieswith the RoHS Directive.Offering protection equivalent to GC, it is used for smallaccessories and fixings which are difficult to hot dip galvanize.Powder Coated PaintBLPE ASTM D3451 standardResin-based paint is applied to the cable tray using anelectrostatic powder and then cured in an oven. Black isstandard. The entire range of colors are available. Mainly usedfor aesthetic reasons and to help identify cable routes, it offersvery good corrosion resistance and the industries only ULclassified painted tray system.1500316L1400 Ongoing protectionCarbonsteelZinc hydroxideStainlesssteel12001000Fe cathodWhen a wire cable tray is cut, the fact that a wire has been cut doesnot affect the level of protection. The jaws of the bolt cutter dragsa layer of zinc across the cut end and forms a protective layer.8PGEZ100304Lx4316LUntreatedZn anod200Pickled& passivated304LUntreatedGC400300Pickled& passivated800600x5Figures for salt spray tests, baseline 100: EZPlease note! Not all steel wire cable trays are the same. The mechanical and electrical characteristics, tests, certifications, overall quality management aspects and recommendationsreferred to in this technical guide are relevant to CABLOFIL only and cannot, under any circumstances, be applied to other similar or imitation products.