The number of drill holes is dependent on the height and width of the cable trays. It was previously shown that metal cable trays can. Welcome to Engineerings. Oglaend System manufacture and deliver Multidiscipline modular bolted support systems, cable trays, cable ladders and accessories for complete installation and containment of Instrument, Electrical, Telecom, HVAC and Piping. - The steps for installing cable trays, which include marking, cutting, drilling holes, installing supports, and fixing fittings and accessories. The document is a training manual that outlines cable tray. Scope :- This specification covers the following major activities; - Fabrication and installation of Mild Steel (MS) support structure for Galvanized Iron (GI) Cable tray. - Installation of perforated GI Cable tray of size 300 x 50 mm at height ~12 meter on wall and existing metal support structure. ngs, etc. Structural building members should never be cut, and cable trays should not be installed in hoist way or where subject to physical.
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