We have installed 1.5&2.5 Sq. mm wires in perforated cable tray for power and lighting. Now we have under stood it is not comply with the code or local regulations.
Since the installed cable tray is surrounded by various services and the wires are connected to various locations, it will be a big task to replace the cable to cable trunking or multiple conduits.
Can you please advise some corrective actions / additional protection to meet the code requirement