Wire mesh tray, 50 mm height
Tray is made of medium carbon steel. Coating - cold galvanizing. Coating thickness ≥ 12µm. Application scope - indoors. Installation Bends, risers, branches, crossings can be made directly from the straight sections of the mesh tray. The installation of supports and (or) hangers for fastening the trays should be calculated based on the expected load and can reach 2.5 m. Operating temperature of cable trays is from -40°С to +150°С. Choice of tray size by number of cables The height of the wire mesh tray must not be less than the diameter of the thickest cable when laid in one layer or the sum of the diameters of cables laid in several layers. Tray width is selected to accommodate the required number of cables plus a margin for expanding number of cables. When choosing the dimensions of the tray, it is also necessary to consider the requirements of regulatory documents, for example, clause 2.1.61 of the PUE states: "in trunking, wires and cables can be neatly dressed or randomly laid in layers. The sum of the cross sections of wires and cables calculated from their outer diameters, including insulation and outer jackets, should not exceed: 35% of the cross section of the conduit; 45% for the trunking with opening lid." |