Trays shall be supported at a maximum span of 2. Check here if you accept our terms (Privacy Policy) Cable Ladder/Tray & Support System B-Line Cable Ladder/Tray & Supports in Offshore & Onshore Aluminum Ladder & Tray Stainless Steel Ladder & Tray FRP Ladder & Tray Perforated Cable Tray FlexTray Wire Basket Strut Systems & Accessories Our Cable. Relevance: SS 500 specifies the cable tray standard for electrical installations, particularly for commercial and industrial use. Relevance: Aligning with IEC standards, MS IEC 61537 covers all aspects of cable tray systems, from design to installation. How far can they stretch? The answer depends on several factors, including the type of tray, the weight of the cables, and local building codes. Typically, cable trays can span anywhere from 6 to 24 feet without additional. Wire Mesh tray is generally used for telecommunication and fiber optic applications and are installed on short support spans, 4 to 8 feet Other sizes be produced according to customer's drawing. ♦ Electro zinc plated–for indoor use to BS EN 12329-2000, 12microns thick. ♦ Hot Dipped Galvanized–for. The maximum load capacity is an aspect of raceway duct systems that determines how many cables you can use and how efficiently your electrical usage will perform for any safety electrical operation and load time. The NEC has a requirement for ladder-type cable trays.