Cable trays are installed by anchoring brackets or threaded rods to solid surfaces on the tunnel wall or the ceiling of the tunnel, with modular sections that can be adjusted to follow the path and slope of the tunnel. ass reinforced polyester) cable trays. These solutions provide optimum safety, flexibility and excellent corrosion resistance for ety lighting, signs, ventilation, etc. With legrand at your side, you are choosing safety, high quality, expertise and a variety of solutions to ensure that your. PohlCon supports you in efficiently planning and professionally implementing cable trays in tunnels. Our product solutions, such as cable trays and cable ladders. Cable trays provide a support structure to lay out cables across hundreds of meters, without the likelihood of sagging or becoming tangled, or even getting in contact with the rough tunnel walls. All Snake Tray. For energy distribution and cable management in tunnelling and rail systems, EAE offers long-lasting, reliable and efficient solutions. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or.