Furthermore, It is moisture free because it can’t accumulate in ladder cable trays. The life span of cables will be increased due to excessive operating temperatures.Ĭables could be layoff or enter into the ladder cable trays through the top or the bottom of the cable tray. Due to these conditions, the insulation of conductor, of a properly designed cable tray wiring system, will not exceed its maximum operating temperature. This permits the heat produced in the cables’ conductors to dissipate effectively. However, It is the predominate cable tray type due to its many desirable features: Why Ladder Type?Ī ladder type cable tray without covers allows the maximum free flow of air across the cables. Generally, Ladder type cable tray is used in applications with intermediate to long support spans 12 to hundreds of feet for heavy cables.
