Fittings (Bends and Tees): These components allow the system to change direction and branch out., 30°, 45°, 90°). While there are several specific types of listings for power cables, specifically for tray applications, there is no equivalent tray rating for optical fiber cables. According to the 2014 National Electric Code® (NEC), any listed optical fiber cable is acceptable for a tray application. Cable trays. for fibre optic cables. Splice trays help maintain: They do not modify signal. association representing the major electrical equipment manufac-turers in the U. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. A complete system is made up of several integral parts: Straight Sections: The long, straight lengths of tray that form the main cable runs.
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