Clamp plates not compatible with the copper bar.When our supervisor started the earthing works, it was noticed that the available “clamp plate” to overlap 2 copper bars (50 mm) are not suitable for the copper bar we have (60 mm).In other substations, 2 stainless steel screws with washer and nut were used for this bar overlap. However, this material does not exist on site, so it would be necessary to buy.Additionally, to connect the earthing bar to the cable box compartments, we only have galvanized screws. Usually this connection is only made with a galvanized screw if we have special washers (which we did not receive) so that there is no contact between the galvanized material and the copper. Alternatively, it can be made with stainless steel screws that we have not received.Therefore, we need information on how to proceed in the two situations described.