The present invention is directed to an electrical wiring box that includes a wiring device interface portion having a substantially planar member configured to accommodate a structural member on a first side and a rim portion extending from a perimeter of the planar member from a second side thereof to form an enclosed volume. The conductor may be a plate provided in the form of an adhesive label printed with conductive ink. Each test step describes at least a part of a test to be performed on the user interface. The second clipping piece has a bending curve part and is connected to a top side of the support beam. The first layer is in contact with the cathode, and the second layer, which is thicker than the first layer, is the layer along which oxidizing gas is distributed and through which oxidizing gas is passed.