TROF Overview Atkore Trof is a prefabricated metal structure consisting of ventilated or solid bottoms, welded to the side rails, and is manufactured and tested to NEMA Standard VE-1. Straight sections, fittings (elbows, tees, crosses, reducers, etc.) and a full line of matching and interfacing accessories are available. Corrugations give great lateral rigidity to the bottom transmitting the load to the side rails. Lateral (transverse) deflection is nearly eliminated compared to rung type trofs where the rails are not continuously braced by the bottom.
Atkore Trof with Three Important Industry-Leading Features: 1. New Universal Curvilinear Splice Plate System The splice plates for rigid connections have a slight curve so they can be used on straight sections or fittings. Tightening of the fastener pulls the plate flush with the side rail. The fasteners are snug and the joint is structurally and electrically superior. Even when hand- tightened, there is pressure on the fastener to hold it securely. Note: Heavy Duty, Mid-Span Splice Plates available upon request.
SIDE RAIL TOP FLANGE
CORRUGATED VENTILATED BOTTOM
SIDE RAIL TOP FLANGE
CORRUGATED VENTILATED BOTTOM
LOAD DEPTH
2. Zero Tangent Fittings Tangent as referred to on cable tray fittings
CORRUGATED SOLID BOTTOM
LOAD DEPTH
is the straight at the end of the curve to accommodate a flat splice plate. This wastes space in tightly packed areas, such as spreader rooms, where the heat of
CORRUGATED SOLID BOTTOM
SIDE RAIL WEB
R
2R
SIDE RAIL HEIGHT
SIDE RAIL WEB
TRAYS WITH TANGENTS R
LENGTH
2R
WIDTH
SIDE RAIL HEIGHT
TRAYS WITH TANGENTS
LENGTH
STRAIGHT SECTION
WIDTH
thousands of cables accumulate. Eliminating tangents allows more tray runs to distribute the heat. Atkore Zero Tangent Fittings can save up to 12" per row of tray. BONUS: Inspection for proper installation of splice plate is visual. If the plate is bowed away from the rail, nuts must be tightened.
Atkore Corrugated bottoms do NOT limit the tray load capacity. Corrugated bottoms have 1" wide ribs on 2" centers. Ventilation holes in the valleys of the corrugations are 11⁄16" diameter on one inch (1") centers. Free passage of air through the openings results in a 68% open area at the elevated cable support surface on top of ribs. Solid Trof have the same corrugations but have no holes. Note: Where drain holes are required, one can be placed in the center of each valley, if specified. STRAIGHT SECTION
TROF - Overview
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