To prepare harmonized standards for cable management, cable protection and cable support products including: - Rigid conduit and fittings of metal, insulating materials and composites; - Flexible and pliable conduits and fittings of metal insulating materials and composites; - Electrical trunking and ducting systems of metal insulating materials and composites; - Channel support, cable tray and cable ladder systems of metal insulating materials and composites. To have regard for the way in which these products are linked together as systems and to the rules for installation.