Holes for splice plates must be drilled in field-cut cable trays. The most common method of locating the hole positions is to use a splice plate as a template. Drill jigs are also available. A short piece of side rail that is punched with the standar. Holes for splice plates must be drilled in field-cut cable trays. The most common method of locating the hole positions is to use a splice plate as a template. Drill jigs are also available. A short piece of side rail that is punched with the standard factory hole pattern can be bolted to the splice plate to serve as a stop that rests against t. 1.Ladder Tray 2.Solid Bottom Cable Tray 3.Trough ( ventilated ) Cable Tray 4.Channel ( perforated )Cable Tray 5.Wire Mesh Cable Tray 6.Single Rail Cable Tray f Ladder Cable Tray 1.Solid side rail protection and system strength with smooth radius fittings and a wide selection of materials and finishes. 2.Maximum strength for long span applications s. 1.Moderate ventilation with added cable support frequency and with the bottom configuration providing cable support every 4 inches. Available in metal and nonmetallic materials. 2. Standard widths of 150, 300, 450, 600, 750, 900 millimeter 3. Standard depths of 75, 100, 125, and 150 millimeters 4. Standard lengths of, 3000, 6000 millimeters 5. Fix. 1.An economical support for cable drops and branch cable runs from the backbone cable tray system. 2. Standard widths of 75,100, and 150 millimeters in metal systems and up to 200 millimeters in nonmetallic systems. 3. Standard depths of30 to 50 millimeters in metal systems and 25, 30, 40,and 50 millimeters in nonmetallic systems1. A job site, field adaptable support system primarily for low voltage, telecommunication and fiber optic cables. These systems are typically steel wire mesh, zinc plated. 2.Standard widths of 25, 50, 150, 200, 300, 400, 450, 500, and 600 millimeters 3. Standard depths of 25, 50, and 100 millimeters 4. Standard length of about 3 meter Wire Mesh t.