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Niedax USA Katalog 2007

Niedax USA Katalog 2007

Product catalog summary

General Information: Cable trays are designed as mechanical support systems for cables and raceways, not for use as walkways or ladders. Safety practices according to NFPA 70E and VDE 0100 are essential to prevent injury or damage. Only qualified personnel familiar with electrical construction and safety equipment should perform installation and maintenance.

Receiving and Unloading: Cable trays are shipped in bundles and should be hand-unloaded unless forklift provisions are available. An inventory check against the manufacturer's packing list is necessary immediately after unloading.

Storage: Storage conditions vary by material. Aluminum, fiberglass, and stainless steel can be stored outdoors, while galvanized and bare steel require protection from moisture to prevent corrosion.

Installation: Installation must comply with NEC Article 392, NEMA VE 1, and IEC 61537. Supports should be strong enough for current and future loads, with splice joints placed between supports for maximum rigidity.

Material and Finish: Cable trays are made from steel and stainless steel, with finishes like electrogalvanized, pre-galvanized, and hot dip galvanized for corrosion resistance. Material and finish choices depend on environmental conditions and required durability.

Corrosion: Corrosion can result from atmospheric, chemical, or galvanic factors. Proper handling and storage can prevent corrosion, and material choice can mitigate its effects.

Galvanic Corrosion: Minimal galvanic corrosion occurs in indoor dry environments compared to wet atmospheres. Corrosion rates are influenced by the relative size and position of materials on the Galvanic Series Table.

Cable Tray Systems: A corrosion guide is provided for various chemicals interacting with Stainless Steel Types 304 and 316 under different temperatures, with recommendations (R), conditional use (F), and non-recommendations (NR) specified.

Environmental Loads: Wind loads are critical for outdoor installations, with impact pressures for various wind velocities. Ice loads depend on tray width, ice thickness, and density, while snow loads should follow local building codes. A formula is provided for converting concentrated static loads to equivalent uniform loads.

Support Span and Strength: Cable tray system strength is influenced by support span, with recommendations for selecting appropriate systems based on structural conditions. Deflection considerations are primarily aesthetic, with guidelines for minimizing visual deflection.

Barrier and Expansion Requirements: Barrier strips are necessary for separating cable systems with different voltage ratings. Future expansion should allow a 50% increase in fill area and load capacity.

Installation and Length Considerations: Standardized cable tray lengths are available to suit support span demands, with considerations for maneuverability and splice connections.

Loading Possibilities: Power applications create the heaviest loading, with specific considerations for data/communication cabling. Support span significantly affects loading capabilities, with additional loads from ice, wind, and snow considered for outdoor systems.

Specifications and Load Calculations: Specifications emphasize rung strength for concentrated loads, with a maximum support span of 12 feet for a 20C system. The load calculation formula is W1 x L1^2 = W2 x L2^2, resulting in a load capacity of 277 lbs. per foot for a 12-foot span.

Type of Cable and Installation Guidelines: NEC Article 318 allows multiconductor tray cables in any standard tray bottom type, while single conductor tray cables are limited to ladder or ventilated bottom trays. Solid bottom trays are prohibited in Class II, Division 2 locations.

Cost vs. Strength Considerations: Ladder trays are generally more cost-effective than solid or ventilated bottom trays, with rung spacing affecting cost and load capacity.

Cable Exposure and Attachment: Tray cables are designed for environmental exposure, favoring ladder type trays for cable entry, exit, and secure attachment, especially on vertical runs.

Fitting Radius and Space Limitations: The fitting radius should accommodate the cable bend radius, with larger radii easing installation. Space constraints may dictate the smallest acceptable fitting radius.

Fittings Installation and Support Recommendations: Support locations for various fittings are detailed, with guidelines for horizontal elbows, tees, Ys, crosses, and reducers. Vertical elbows require support at both ends.

Support System and Bracket Specifications: Specifications for support systems and brackets include dimensions, load capacities, and installation requirements, emphasizing adequate anchoring to the building ground.

Fasteners and Load Supply Calculations: Fasteners for different cable tray types must be ordered separately. Load supply calculations consider permissible anchor strain and spacing between bracket fixing holes.

Catalog excerpts

B Steel, bareSteel, galvanized according to DIN 50961Steel, pre-galvanized according to DIN EN 10142Steel, hot dip galvanized after fabrication (HDGAF) according to DIN EN ISO 1461Stainless Steel, Material specification 1.4301, AISI Type 304Stainless Steel, Material specification 1.4571, AISI Type 316PlasticWeight in KgPackaging Unit per pieces (pcs.) or feet (ft.)Bolts and Nuts included in delivery G S F ER A4 K valid for all products in this Catalog according to Low Voltage Directive 73/23/EEC >

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RD... ( product is shown in 60 mm height) RBAVD RBAV RDHF 9 E2 > US 2 US 2 size="-1">

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NIEDAX Dimensionsinchh x wMaterial-thicknessmm (in.) Series > FLM6 x 12 FLM6 x 12 PieceDimensionsmmh x w >

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Catalog No.Name of the itemPageCatalog No.Name of the itemPage D DB 10Ceiling Support66DB 10 ER Clamping Head Plate 57KIGV 80 Stainless Steel, ER 66DBG 10 Head Plate 57KKAT 300Clamping Device, 9031 KLA 6 Ceiling Support 66DBG 10 ER Stainless Steel, ER 66DBT 40 Ceiling Support 66DBT 10 ER Stainless Steel, ER 66DK 50Protective Cap41DK 100 Cable Tray/Cable Ladder Hold Down Clamp 67KLABX...Drop Out 138, 144, 148 KLALX...Horizontal Tee left outgoing 136, 141KLARX...Horizontal Tee right outgoing 136, 141KLASX...Connection Piece 138, 144, 148KLBGX...Horizontal Elbow 90а large 137, 142, 147KLBKX...Horizontal...

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Catalog No.Name of the itemPageCatalog No.Name of the itemPageWall bracketKTA... R RAWX...Horiz. Adjustable Splice Plate 89, 99, 109, 121 Wall bracket,standard 28KTA...ER RAWX...ER Stainless Steel, ER 99, 121RAX... Stainless Steel, ER 28KTAL... Horiz. Adjustable Splice Plate 89, 99, 109, 121 Wall bracket, light 28KTAM... RAX...ER Stainless Steel, ER 99, 121RBADVX...Cable Tray Cover126RBADX... Wall bracket, medium loads 28KTAM...ER Stainless Steel, ER 28KTAM...A4 Stainless Steel, A4 28KTAS... Cable Tray Cover 126RBAX...Horizontal Elbow 45 86, 95, 106, 117RCB...Snap-in Suspension Bracket66Eye BoltRCM......

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Catalog No.Name of the itemPageCatalog No.Name of the itemPageRLUX...Cable Tray 81, 86, 93, 104, 114, 115 Stainless Steel, ER 161, 174RW 110 RLUX...ER Stainless Steel, ER 93, 115RLVX...Cable Tray light ventilated92RLVX...ER for RL/RS 110 mm 116, 167, 170, 177, 180, 182 RW 110 ER Stainless Steel, ER 116, 167, 177RWA 110 ER Ferritic Stainless Steel 116RWX... Stainless Steel, ER 92RLVX...A4 Barrier Strip 185RWX...ER Stainless Steel, A4 92RLX...Mini-Cable Tray 81, 86, 92, 104, 114RLX...ER Stainless Steel, ER 185 S SH...S-Hook62SHN-4 Stainless Steel, ER 92, 114RMB 50/75Wall/Long Span Cable Tray83RMP...

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Catalog No.Name of the itemPageCatalog No.Name of the itemPageVBSMThreaded Rods Connector Horiz. Adjustable Splice Plate 160, 166, 169, 176, 179, 181WSWVX...ER M 8, M 10, M12 63VBT 40Connector53 VP 50.50Bracing Plate66 Stainless Steel, ER 160, 166, 176, 179WWA 100Wall/Ceiling Support 61, 152, 185WWA 100 ER Stainless Steel, ER 61, 152, 185WWI 80 Wall Support 57, 61, 154WWS 10 W WAEX... Extension Horiz. Elbow 90 158, 162, 168, 174, 177, 180WAEX...ER Wall Clamping Support 152WWU 150 Wall Support 61WWU 150/8 Stainless Steel, ER 158, 162, 174, 177WAX...Horiz. Tee Adapter Fitting Splice Plate165WBL...Long...

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WARNING! Cable tray should not be used as a walkway, ladder, or support for people;cable tray is a mechanical support system for cables and raceways. Using cable trays as a walkway can result in personal injury and also cause damage to the cable tray system and installed cables. > Hazardous voltages in electrical equipment can cause severe personal injury or death. Safety related work practices, as described in NFPA 70E, Part 11 or VDE 0100, should be followed at all times.The overall performance of a cable tray wiring system is dependent upon proper installation, including supports andcables....

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To prevent damage to cable tray, never unload from truck / trailer by chaining to bottom of the skid and draggingout of trailer. > Inventory all items immediately after unloading, using the manufacturers packing list. Note on the bill of lading anyshortage or shipping damage for filing freight claim. > Aluminum, Fiberglass, Stainless Steel and /or other non-metallic cable tray can be stored outside without protectivecovering. Tray should be loosely stacked, elevated off the ground, and ventilated to prevent storage stain. If appearance is important, cable tray should be stored indoors to prevent...

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Steel cable trays are fabricated from continuous roll-formed structural quality steel. By roll-forming steel, the mechanicalproperties are increased allowing the use of a lighter gauge steel to carry the required load. This reduces the dead weight that must be carried by the supports and makes the system easier to install for the contractor. By using structural quality steel, NIEDAX assures that the material (steel) will meet the minimum yield and tensile strengths of applicable ASTM standards. All cable tray side rails, rungs and splice plates are numbered for material identification purposes....

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Pre-Galvanized steel is produced by coating coils of sheet steel with zinc. This process is accomplished by continuously rolling the material through molten zinc at the mills. This procedure is also used to produce mill galvanized and hot dip mill galvanized material. The coils are then slit to size and fabricated by roll forming, shearing, punching, or forming to produce NIEDAX pre-galvanized cable tray products. The G90 specification calls for a coating of .90 ounces of zinc per square foot of steel. This results in a coating of .45 ounces per square foot on each side of the sheet. This is...

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All metal surfaces are affected by corrosion. Depending on the physical properties of the metal and the environment towhich it is exposed, chemical or electromechanical corrosion may occur. > Atmospheric corrosion occurs when metal is exposed to airborne liquids, solids or gases. Some causes of atmosphericcorrosion are moisture, salt, dirt and sulphuric acid. This form of corrosion is typically worse outdoors, especially nearmarine environments. > Chemical corrosion takes place when metal comes in direct contact with a corrosive solution. Some factors which affect the severity of chemical corrosion...

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