Structural Steel Savign Engineering Guide
Structural steel savingsB-LINESSS-17SERIESEngineers guide to structural steelsavings with B-Line series cableladder system
Table of ContentsCable Ladder Best Practice.3-4Evolution of Project Savings.5Structural Steel Savings Technical White Paper.6-7Vertical Inside / Outside Bend RecommendationsOption 1 ½ Span.8Option 2 Dual Support.9Option 3 Dual Support. 10Option 4 Floating. 11Horizontal Bend RecommendationsOption 1 ½ Span. 12Option 2 Dual Support. 13Option 3 Floating. 14Horizontal Tee RecommendationsOption 1 ½ Span. 15Option 2 ½ Span / Dual Support. 16Option 3 Dual Support. 17Option 4 Floating.18Horizontal Cross RecommendationsOption 1 ½ Span. 19Option 2 ½ Span / Dual Support.20Option 3 Dual Support.21Option 4 Floating.22Reducer Fitting Recommendations.23Vertical Adjustable Splice Plate Recommendations.24Heavy Duty Expansion Splice Plate Recommendations.25Case Study.26Additional Resources.272Engineers guide to structural steel savings with B-Line series cable ladder systemEaton.com/sss
Lower total install cost solution throughreduction of structural steel supportsEaton provides solutions that de-risk by design and drive value to our end customers. With Eaton’sB-Line series cable ladder, Eaton provides support recommendations that meet and exceed NEMAVE-2 requirements. These methods have been applied across the globe on multiple applications andprojects, and have saved customers millions of dollars on structural steel.This brochure provides an overview of Eaton’s recommendations for structural steel supports when utilizing Eaton’s B-Lineseries cable ladder, fittings and splice plates. For additional information, and online resources and tools, visit Eaton.com/SSS.Cable ladder best practiceTo maximize cost savings on any cable ladder project, itis essential that: Electrical and structural engineers and contractorscommunicate effectively Support plans and layouts are discussed early on withinthe project life cycle (FEED - Front End EngineeringDesign) to ensure proper support placement, minimizeconstruction complexity, and reduce budget spendSupport Location System Stress and Deflection-Minimum¼ SpanMid-SpanOver Support-MaximumFor best performanceSupport location best practice1/4 Span - The method of placing supports at 1/4 spanaway from a splice plate location on continuous runs. Recommended installation method by NEMA VE 2 andEaton’s B-Line series Up to 50% deflection reduction over simple beam ormid span installations Eliminates hold down clamp and splice hardwareinterference issues during thermal expansion andcontraction See Fig. 1A and Fig. 1B for visual stress comparisonMid-Span - The method of placing supports at 1/2 spanaway from a splice plate location on continuous runs. Excessive system deflection and stress experiencedcompared to 1/4 span support methodology Requires additional supports to account for properthermal expansion and contraction Splice plate performance becomes more influential ondeflection See Fig. 2A and Fig. 2B for visual stress comparisonSimple Beam (Over Support) - The method of placingsupports directly under the splice plate locations oncontinuous runs. Maximum system deflection and stress experienced Leads to possible installation issues not allowing forproper thermal expansion and contraction See Fig. 3A and Fig. 3B for visual stress comparisonEngineers guide to structural steel savings with B-Line series cable ladder system¼ Span¼ Span¼ SpanFig. 1AFig. 1AFig. 1BFig. 1BFig. 1BFig. 1AMid-SpanMid-SpanMid-SpanFig. 2BFig. 2AFig. 2AFig. 2AFig. 2BFig. 2BSimple Beam (Over Support)Simple Beam (Over Support)Simple Beam (Over Support)Fig. 3BFig. 3AFig. 3AFig. 3AFig. 3BFig. 3BEaton.com/sss3
NEMA vs IEC StandardsNational Electrical Manufacturer Association vs.International Electrotechnical Commission.NEMA & IEC both provide technical requirementsregarding the construction, testing, and performance ofmetallic cable tray systems. However, testing methodsdiffer drastically, showing different performance results.Choosing a manufacturer with proven success with bothstandards, such as Eaton’s B-Line Division, is crucial to helpensure proper system design. IEC has 5 continuous span testing methods whereNEMA has only 1 simple beam test method IEC test methods are deflection basedwhile NEMA tests to destruction Splice plates are included within IEC testmethods and not for NEMA IEC does not detail support recommendations, theIEC standard refers back to NEMA VE 2 IEC requires 3rd party witness verification (suchas DNV) while NEMA is internal. However 3rdparty verification for NEMA (such as CSA or DNV)is common practice among top cable traymanufacturers. IEC requires product impact testing with extremetemperaturesUnderstanding Electrical ContinuityThe National Electric Code (NEC) Article 392 states that acable tray system can be utilized as an EGC (equipmentgrounding conductor) per the limitations of table 392.60(A). Only mechanically discontinuous locations(i.e. expansion splice plates & gaps) need bondingjumpers (required on both side rails) Indoor cable tray runs (when temperature controlled)do not require expansion joints, and therefore,bonding jumpers are not required to maintain electricalcontinuity Please see Fig. (4): Cable Ladder Amperage Cable tray and ladder systems are tested per UL, CSA,and/or IEC standardsUnderstanding Thermal Expansion Understanding where and how often to allow forthermal expansion and contraction is an essentialmeasure to the longevity of a cable tray system Reduced system performance or failure is often dueto improper system design NOT allowing for adequatethermal expansion and contractiono See Fig. (5): Max Spacing Between ExpansionLocationso See Fig. (6): Thermal Gap Settingso See Fig. (7): Guide vs. Clamp - HD ExpansionConsiderationsFig (4): Cable Ladder AmperageNEC Table 392.60(A).Metal Area Requirements for Cable TraysUsed as Equipment Grounding ConductorsMaximum Fuse Ampere Rating.Circuit Breaker Ampere TripSetting, or Circuit BreakerProtective Relay Ampere TripSetting for Ground-FaultProtection of Any Cable CircuitIn the Cable Tray SystemFig (6): Thermal Gap SettingsMinimum Cross-Section Areaof Metal* In Square InchesAluminumCable TraysSteelCable 00**For SI units: one square inch 645 square millimeters.* Total cross-sectional area of both side rails for ladder or troughcable trays; or the minimum cross-sectional area of metal inchannel cable trays or cable trays of one-piece constuction.** Steel cable trays shall not be used as equipment groundingconductors for circuits with ground-fault protection above600amperes. Aluminum cable trays shall not be used asequipment grounding conductors for circuits with groundfault protection above 2000 amperes.Fig (5): Max Spacing Between Expansion LocationsMaximum Spacing Between Expansion Joints For 1" inless Steel316Fig (7): Guide vs. Clamp - HD Expansion te: every pair of expansion splice plates requres two bonding jumpers for grounding continuity.4gapMax. spacing betweenexpansion joints¼ spanDenotes standard splice platesDenotes heavy duty expansion splice plateDenotes expansion guide clamp at supportDenotes hold-down clamp (anchor) at supportEngineers guide to structural steel savings with B-Line series cable ladder systemEaton.com/sss
Evolution of Project SavingsEaton’s B-Line series engineered cable ladder solutionsare leading the way for lower total installed cost.*SupportRecommendationsB-Line seriesStructural Steel SavingsI-Beam SolutionsC-Channel SolutionsAs the cost of structural steel continuesto increase, the impact of reducing thequantity of supports on a projects can offsetthe cost of the cable ladder system all together.Longer SpansFitting SupportsElevation TransitionsExpansion Supports*All support details will meet and exceed NEMA VE-2 requirements.Engineers guide to structural steel savings with B-Line series cable ladder systemEaton.com/sss5
B-LINEThought leadershipWhite paperMatt CombesProduct Line ManagerCable Management - North AmericaB-Line series solutionsEaton, Highland, IL, USAOverview / IntroductionEaton’s B-Line series metallic cableladder systems are engineered to providesuperior strength to weight ratio whileproviding the lowest total installed costof any cable management system in theindustry today. This is achieved throughcontinuous innovation, market andcustomer based knowledge.F.Y.I.SERIESLowering your total installed costthrough structural steel savingsThe NEMA recommendationsare created by active cable laddermanufacturers in North America,and are intended to provide a basicinstallation guideline for all cable laddersystems.However, individual manufacturerscan provide recommendations fortheir systems that exceed the basicguidelines outlined by NEMA VE-2(section 3.5.1).F.Y.I.Eaton has been an active member of NEMA fortwo decades and our representative has held thechair position with the NEMA VE-2 TechnicalCommittee. NEMA guidelines are written by cabletray manufacturers for cable tray manufacturers.“Unless otherwise recommended by themanufacturer” allows cable tray manufacturers tohighlight differentiating factors for their cable tray.To achieve the lowest total installed F.Y.I.cost, Eaton’s engineers developed aninnovative means to significantly reducethe number of structural steel supportsneeded in cable ladder installations,without diminishing the load carryingWhen assessing a project for thecapacity of the system.lowest total installed cost, Eatonrecommends focusing on four keyIn addition, extensive laboratory testingdesign considerations:has enabled the Eaton B-Line seriescable ladder to exceed the National(1) Longer straight section spansElectrical Manufacturer’s Association(2) Fittings support locations(NEMA) VE-2 support recommendations(3) Vertical adjustable support locationsfor cable ladder installations.(4) Thermal expansion support locationsUtilizing Longer StraightSection SpansNEMA VE-2, (section 3.4.1) definesan allowable straight section supportspan as the following: “straight sectionsupport span should not exceed thestraight section length”.Therefore, to eliminate supports, oneoption is to increase the length of cableladder.For example, transitioning from 10ft(3m) spans to 20ft (6m) spans reducessupports by 50%.To create even more savings, Eatonoffers B-Line series cable laddersystems that are capable of 30ft(9m) and 40ft (12m) support spans;dramatically reducing the overallquantity of structural supports neededon a job site.The B-Line series cable ladder featuresa highly engineered I-beam rail, whichmaximizes the strength to weight ratioof the system, and allows for longerspan capability.
White Paper WP302012ENStructural steel savingsEffective June 2017The breadth of materials and sizes enables Eaton to offer theideal B-Line series solution to meet a variety of customerapplications and load criteria. (Refer to Structural SteelSavings (SSS-17) technical reference for support designconsiderations.)F.Y.I.F.Y.I.F.Y.I.B-Line series aluminum cable ladder can range up to 40ft (12m) in length while steelcan range up to 24ft (7.3m).This difference in length is due to the strength to weightratio of aluminum.Thermal Expansion Support LocationDesigning and accounting for proper thermal expansionand contraction is key to the longevity of a cable ladderinstallation.As NEMA VE-2 details in section 3.4.1, “it is ideal to lay outthe system so that splice joints fall between the support andthe quarter point.”It is important to note that placing expansion splice platesdirectly on top of supports does not comply with NEMA VE 2section 3.4.2, and is therefore not recommended.Fitting Support Location RecommendationsWhen it comes to installing supports, cable tray fittings areone of the biggest challenges. Eaton’s B-Line series cableladder is engineered to provide flexibility in selecting theproper support locations for fittings.Eaton’s industry-leading 3in (75mm) or 4in (100mm) tangentshelp maximize the strength and load carrying capacity ofsplice plates at fitting locations which allows for a reductionin support requirements.Conversely, Eaton’s patented B-Line series heavy dutyexpansion splice plate eliminates the need to install additionalsupports within 2ft (600 mm) on each side of the expansionlocation when placed at the quarter point of a support span.Similar to the fitting supports detailed above, theperformance of Eaton’s highly engineered B-Line seriesheavy duty expansion splice plate complies with and exceedsNEMA VE-2 recommendations as detailed in section 3.4.2.In fact, NEMA documentation does not require the testingof fitting locations altogether. However, Eaton has conductedThis equates to the elimination of 2 supports every 65ftextensive testing on its B-Line series cable ladder to provide(20m) with the typical 20ft (6m) aluminum ladder with aseveral alternative options for supporting horizontal bends,100 F temperature differential.tees, crosses, and vertical bends as compared to the NEMAThe heavy duty expansion splice plate is available for all industrial B-Line seriesVE-2 section 3.5.1 recommendations.F.Y.I.F.Y.I.F.Y.I.F.Y.I.F.Y.I.NEMA VE-2 (section 3.5.1). states, “Recommended support locations follow, unlessotherwise recommended by the manufacturer”. (Refer to Structural Steel Savings(SSS-17) technical reference for support design considerations.) Supports are notlimited to structural steel, but can be defined as strut channel and angle iron. Thesame recommendations apply to these supports as well.Vertical Adjustable Supports LocationsFor changes in elevation, with intermediate angles, and forcables not requiring a large radius, vertical adjustable spliceplates are often the best solution.NEMA VE-2 (section 3.4.3) states that a support is requiredwithin 2ft (600mm) on both sides of every vertical adjustablesplice plate regardless of series or span.Eaton has conducted extensive testing to prove that pairingB-Line series cable ladder and vertical splice plate, installerscan forego transitional supports up to half span for steel,stainless steel, and aluminum cable ladder systems (2-5 andmetric cable ladder series). This allows a 20ft (6m) ladder tospan 10ft (3m) unsupported between adjustable splice plates.Similarly, cable ladder series are designed for 30ft (9m) spansand can be unsupported up to 15ft (4.5m) between verticaladjustable splice plates and up to 20ft (6m) unsupportedspans can be utilized with 40ft (12m) ladders.F.Y.I.F.Y.I.F.Y.I.Refer to Structural Steel Savings (SSS-17) technical reference for support designconsiderations. The vertical adjustable splice plate is an unparalleled “Eaton B-Lineseries only solution”, and is applicable for both NEMA and IEC industrial stylecable ladders.Eaton1000 Eaton BoulevardCleveland, OH 44122United StatesEaton.com 2017 EatonAll Rights ReservedPrinted in USAPublication No. WP302012ENJuly 2017 WPSSS-17F.Y.I.cable ladder. Reach out to B-Line series technical sales for more information.ConclusionIn conclusion, Eaton is committed to supplying its customerswith innovative solutions that will result in the lowest totalinstalled cost.The most significant cost driver of cable ladder installationsis the cost of the supports, whether it is an industrial orcommercial application.Depending on the complexity and location of the project,supports can range anywhere from 500 to over 15,000 each.By incorporating Eaton’s support recommendations withstraight sections, fittings, vertical adjustable splice plates, andheavy duty expansion splice plates, B-Line series cable laddersolutions can help eliminate substantial costs in both laborand support materials on any given project.Please feel free to contact your local Eaton B-Line seriescable ladder representative to address any additionalquestions regarding this information or for assistance inoptimizing your support layout.For more information, visit Eaton.com/sssEaton is a registered trademark.All other trademarks are propertyof their respective owners.Eaton B-Line Division509 West Monroe StreetHighland, IL 62249United States800-851-7415Eaton.com/sssFollow us on social media to get thelatest product and support information.
NEMA RecommendationVertical Inside / Outside BendSupport RecommendationOption 1“½ Span”Elevation viewSupport recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.36" (900mm) bendradius max.½ Span[10' (3m) max]Support anywhere under fitting orsplice plateIf less than orequal to 10' (3m) max.no intermediatesupport is requiredNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.½ Span[10' (3m) max]*Note: Support profile may be placed atany location underneath splice plate.2 8I-Beam supportmethod*Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationElevation viewVertical Inside / Outside BendSupport RecommendationOption 2“Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.36" (900mm) bendradius max.Full spanIf less than orequal to ½ span[10' (3m) max.]no intermediatesupport is requiredNote: Depicted support memberacts as dual support for bothstraight section and fitting whenlocated underneath thesplice plate.Full span*Note: Support profile may be placed atany location underneath splice plate.I-Beam supportmethod*Strut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com9
NEMA RecommendationElevation viewVertical Inside / Outside BendSupport RecommendationOption 3“Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.36" (900mm) bendradius max.Full span½ Span[10' (3m) max]from upperfittingNote: Intermediate supportsintervals not to exceed 10' (3m)on extended vertical drops½ Span[10' (3m) max]from lowerfittingNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.Full span*Note: Support profile may be placed atany location underneath splice plate.210I-Beam supportmethod*Strut supportmethodIsometric viewEngineers guide to structural steel savings with B-Line series cable ladder systemEaton.com/sssEngineers guide to structural steel savings with B-Line series cable ladder system CA00000000E—August 2017 www.eaton.com
NEMA RecommendationElevation viewVertical Inside / Outside BendSupport RecommendationOption 4“Floating”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.36" (900mm) bendradius max.2' (600mm) max2' (600mm) maxNote: Intermediate supportsintervals not to exceed 10' (3m)on extended vertical drops2' (600mm) max2' (600mm) maxI-Beam supportmethodStrut supportmethodEngineers guide to structural steel savings with B-Line series cable ladder systemEaton.com/sss2Engineers guide to structural steel savings with B-Line series cable ladder system CA00000000E—August 2017Isometric viewwww.eaton.com11
NEMA RecommendationPlan viewHorizontal BendSupport RecommendationOption 1“½ Span”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.12" - 36" [300-900mm]bend radius.If larger use NEMA VE-2½ span or10' (3m) max½ span or10' (3m) max30I-Beam supportmethod2 1230Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationPlan viewHorizontal BendSupport RecommendationOption 2“Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Full spanAluminum12" - 24" [300-600mm]bend radius.Steel12" - 36" [300-900mm]bend radius.Full spanNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.*Note: Support profile may be placed atany location underneath splice plate.I-Beam supportmethod*Strut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com13
NEMA RecommendationPlan viewHorizontal BendSupport RecommendationOption 3“Floating”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Aluminum12" - 24" [300-600mm]bend radius.Steel12" - 36" [300-900mm]bend radius.2' (600mm) max.2' (600mm) max.I-Beam supportmethod2 14Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationPlan viewHorizontal TeeSupport RecommendationOption 1“½ Span”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.12"-36" [300-900mm] bend radius.if larger use NEMA VE-2.Supportunder fitting(2 places typ.)½ span or10' (3m) max.I-Beam supportmethodStrut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com15
NEMA RecommendationPlan viewHorizontal TeeSupport RecommendationOption 2“Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Full SpanNOTE: Depicted support memberacts as dual support for bothstraight section and fitting whenlocated underneath the splice plate.Full Span12"-36" Bend Radius.[300-900mm]If Larger Use NEMA VE-2.*Note: Support profile may be placed atany location underneath splice plate.2 16I-Beam supportmethodFull Span*Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationPlan viewHorizontal TeeSupport RecommendationOption 3“½ Span / Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Full spanNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.½ Span or10' (3m) max.Full span12"-36" [300-900mm] Bend radius.If larger use NEMA VE-2.*Note: Support profile may be placed atany location underneath splice plate.I-Beam supportmethod*Strut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com17
NEMA RecommendationPlan viewHorizontal TeeSupport RecommendationOption 4“Floating”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Aluminum12" - 24" [300-600mm]bend radius.Steel12" - 36" [300-900mm]bend radius.2' (600mm)max.2' (600mm)max.I-Beam supportmethod2 18Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationPlan viewHorizontal CrossSupport RecommendationOption 1“½ Span”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.12" - 36" [300-900mm] bend radiusIf larger use NEMA VE-2.½ Span or10' (3m) max½ Span or10' (3m) maxSupportunder fitting(2 places typ.)½ Span or10' (3m) maxI-Beam supportmethodStrut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com19
NEMA RecommendationPlan viewHorizontal CrossSupport RecommendationOption 2“½ Span / Dual Support”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.12" - 36" [300-900mm] bend radiusif larger use NEMA VE-2.Full span½ span or10' (3m) maxNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.½ Span or10' (3m) maxFull span*Note: Support profile may be placed atany location underneath splice plate.2 20I-Beam supportmethod*Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationHorizontal CrossSupport RecommendationOption 3“Dual Support”Plan viewSupport recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.12" - 36" [300-900mm] bend radiusIf larger use NEMA VE-2.Full spanFull spanNote: Depicted support memberacts as dual support forboth straight section andfitting when locatedunderneath the splice plate.Full span*Note: Support profile may be placed atany location underneath splice plate.Full spanI-Beam supportmethod*Strut supportmethodEngineersguide to ton.com/sss2Engineerssteelguidesavingsto structuralsavingswithB-Lineseriescable laddersystem CA00000000E—August 2017Isometric viewwww.eaton.com21
NEMA RecommendationPlan viewHorizontal CrossSupport RecommendationOption 4“Floating”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Aluminum12" - 24" [300-600mm]bend radius.Steel12" - 36" [300-900mm]bend radius.2' (600mm)Max.2' (600mm)Max.2' (600mm)Max.I-Beam supportmethod2 22Strut supportmethodIsometric viewguideto seriesstructuralB-Line series cableladdersystemEaton.com/sssEngineers guide to structural steelEngineerssavings withB-Linecablesteelladdersavingssystem withCA00000000E—August2017www.eaton.com
NEMA RecommendationSupports should be located within24"(600mm) of each fitting extremity600mm(24") Max.600mm(24") Max.Plan viewReducer FittingSupport RecommendationStandard Option 1“½ Span”Support recommendations apply to B-Line series 2-5 steel and aluminum cable ladder, HDLseries, and SDL series steel cable ladder products.Straight reducer½ Spanor 10' (3m) max.½ Spanor 10' (3m) max.Left
Sep 15, 2017 · Engineers guide to structural steel savings with B-Line series cable ladder system B-LINE Structural
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