- Simple connection using 2 screws on each side (optional)- Material: metal- T-piece for cable trays 60x100- for connecting 3 cable trays- CE certification- DIN 4102-12:1998, ISO 14001:2015, E90 (fire resistance), ISO 45001:2018-Galvanised-Installation: Insert cable. - Simple connection using 2 screws on each side (optional)- Material: metal- T-piece for cable trays 60x100- for connecting 3 cable trays- CE certification- DIN 4102-12:1998, ISO 14001:2015, E90 (fire resistance), ISO 45001:2018-Galvanised-Installation: Insert cable. Characteristic of this steel type is that – prior to mechanical deformation – it is given a zinc coating by means of a continuous dipping process. This zinc coating is easily deformed. A cathodic action occurs on cut surfaces (up to 1. First, the steel is. cable trays are equivalent. 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. Thomas & Betts offers a wide range of cable tray wiring systems for you to choose from. They are Reliable, Adaptable, Low-Maintenance, Low-Cost and Safe choices. Cable tray wiring systems offer significant advantages over conduit pipe and other wiring systems. Because of its closed design, this type of tray should e used in applications where there is minimal risk of heat generation and buildup.