The NEC requires that cable trays must be supported by members at an interval specified by the cable tray manufacturer, but not more than 5 feet for horizontal runs to support the weight of the cables and other loads. The NEC has a requirement for ladder-type cable. OBO BETTERMANN has offered prod-ucts and solutions for electrical instal-lation for over 100 years. Proper installation can. With the RS 60 cable tray installation system, we offer you the last installation type of the standard support construction, so that you can implement all installations required in the building project with circuit integrity maintenance on the basis of the standard support construction. Keep cables neat and easy to access with simple management solutions. Since cable tray support is used in a wide variety of applications, and under varying conditions, it is important that you gain an understanding of. cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or.
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