Tinned Copper Bonded terminal strips are manufactured by fabricating low-carbon ISI certified steel with superior quality and class. 100-120 microns of copper is bonded to nickel sealed steel strips which is again coated with 12 microns of tin (as per IEC 62439).
A large number of earthing conductors can be easily terminated on these strips/earth benches. All the conductors to be earthed are brought into the ports (threaded screw ports) of a terminal strip with desirable number of ports (customers scope) and the connection to the earth termination system is made from the Terminal Strip. The tinning provides a good resistance to corrosion and formation of smudge on the terminal strip, keeping it neat.