TROF 3. The Exclusive Auto Arc-Welded Assembly System
Uses of Atkore Trof Generally, Atkore Trof is optimum for ANY size cable. It offers continuous support with or without ventilation. The bottom design offers safety and security from unauthorized personnel. The vent holes may be bushed with a grommet for dropping out communication cables (Catalog # DOG-1).
Corrugated bottoms on straight sections are assembled to the side rails using an automatic, self indexing MIG-arc-welding system fusing a 1" diameter zone. These welds are 700% larger and stronger than the common resistance (spot) weld in use today. Electrical properties of the assembly are unequaled and are well within the NEMA requirements due to the continuous electrical path. The mechanical strength of this welded assembly withstands the rigors of shipping, handling, installation and service. The size of the weld keeps the vertical axis of the side rail from sloping inward under load. The weld maintains the 90° angle between the side rail and bottom. This allows full use of the section properties. Spot welds do not permit this. Also, stresses on spot welds (barely 1⁄8" diameter) are so severe that breakage often occurs during shipping and installation. Atkore Trof fittings are also assembled by MIG-arc-welding.
Made with FlippingBook - professional solution for displaying marketing and sales documents online