| 摘要 |
For an electrical box having an open front, mounting an electrical device, and having a plaster ring, which fastens to the electrical box, around the open front, and which has a projecting portion defining a generally rectangular aperture providing access to the electrical device, through the open front, after the electrical box, the electrical device, and the plaster ring have been installed behind a wall panel, such as a drywall panel, a protective cover is mountable removably to the plaster ring so as at least substantially to cover the generally rectangular aperture of the plaster ring, whereby to protect the electrical device against foreign matter, damage, or both while an aperture accommodating the projecting portion of the plaster ring is cut into the wall panel or while the wall panel is being decorated near the aperture accommodating the projecting portion of the plaster ring. In one contemplated embodiment, the protective cover is made from steel and has a window, which has a transparent sight made from a transparent, polymeric material enabling a person to view the electrical device through the generally rectangular aperture of the plaster ring and through the open front of the electrical box while the protective cover is mounted to the plaster ring. In another contemplated embodiment, the protective cover in its entirety is made from such a transparent, polymeric material.
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