| 摘要 |
A nonmetallic electrical box which has mounting surfaces or contacting points, a pair of bosses and a pair of securing arms. The bosses extend from the center of the top and bottom walls of the box for mounting a wiring device within the box, and the securing arms extend from the top and bottom walls for securing the box within the opening of a wall or ceiling. The contacting points are spaced apart along the top and bottom walls, are coplanar and extend outwardly from the top and bottom walls a distance at least equal to the distance the bosses and arms extend outwardly from the top and bottom walls, thereby preventing any side to side rocking motion when the box is mounted within a rectangular opening.
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