Cable tray installation is performed by qualifiedpersons familiar with standard electrical construction practices, electrical equipment, and safety ofelectrical wiring systems. Advancing technology andconstruction techniques in the hands of experience engineers, contractors, and maintenance personnel. trained in the proper care and use of protective equipment such as insulated rubber gloves, hard hat, safety glasses or face shields, dust mask, and flash resistant clothing in accordancewith established safety practices. And will be followed all nema procedures.