Cable trays and busways at floor level or at slab penetrations shall have a waterstop no less than 50 mm in height. At slab penetrations, provide 20–30 mm of firestopping and install a fire-support plate at the top. Sealing shall be tight and reliable, without visible. Ned-Tech is a leading cable tray supplier in Benin, providing durable and cost-effective solutions that meet international standards. We support contractors, project managers, energy companies, and government institutions with reliable cable trays, cable ladders, trunking, and wire mesh systems. Cable tray installation must comply with specific technical standards to ensure electrical safety, system reliability, and long-term maintainability. Both Polyester & Vinyl ester resin systems are available & all components incorporating U. From power plants to fertilizer industries, paper. Effective protection of cable systems around the world: our tried-and-tested FLAMMOTECT-A and DG-CR 0. 7 products are successfully used to protect cables in high-rise buildings, industrial buildings, and offshore facilities as well as in sensitive areas, such as hospitals, airports, production. When you design a cable management system, you are not just choosing a tray—you are deciding how reliable, safe, and maintainable your entire electrical infrastructure will be over the next 20 to 30 years.