Electrical housing assembly including serrations and arched clamp for retaining non-metallic sheathed cables

The present invention relates to an electrical box assembly for housing non-metallic sheathed cables as well as a clamping device for holding the cables in place within an electrical box. The electrical housing assembly provides a more efficient structure for retention of cables without damaging the outer non-metallic sheath of the cables stored in the electrical box. An electrical box for supporting sheathed electrical cables therein holds and supports electrical cables in a preferred arrangement. A cable clamp structure is used for clamping electrical cables to a surface of an electrical box. The cable clamp structure has an arched configuration and serrations on a cable contacting surface in order to more efficiently store electrical cables in an electrical box.