Abstract: A modular electrical wiring system comprising outlet boxes including laterally spaced positioning plates slidably receiving modular devices therebetween. Each modular device including a forwardly opening housing receiving slide-in busses in accord with the internal circuitry desired. A cooperating face block seals the forward end of the housing, providing appropriate access to or control of the internal circuitry defined by the internal busses. Power and distribution cables engage the internal circuitry through wire receiving compartments in the top wall of the module. The module includes side locking plates releasably engageable with the positioning plates of the outlet box for a retention of the positioned module.

Abstract: A holding strap for securing service lines to furring strips and the like wherein the strap includes a planar face panel with a generally arcuate flange extending laterally from one end thereof. The face panel including a nailing prong turned laterally therefrom to the same side as the flange in longitudinally spaced relation thereto. The flange defines a pocket opening to the same side of the face panel beyond which the flange extends.

Abstract: A nail plate including integral laterally projecting nailing prongs and, remote therefrom, a laterally directed hold-down flange. The area between the prongs and the flange is imperforate to define a shield for wiring and the like. The free outer edge of the flange may include a rolled portion defining an elongate sleeve.