Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 48. Water-Tight Outlet of II. Krantz Manufacturing Co., Brooklyn, N. 1. duits, and that the cover is screwed on tightly and a flange providedfor a rubber gasket. 354 ELECTRIC WIRING 65 Fjgs. 49 and 50 show water-tight floor boxes which are for outletslocated in the floor. While the rules do not require that the floor outlet-box shall be water-tight, it is strongly recommended that a water-tight outlet be used in all cases for floor connections. In this casealso, the conduit opening is threaded, as wel
Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 48. Water-Tight Outlet of II. Krantz Manufacturing Co., Brooklyn, N. 1. duits, and that the cover is screwed on tightly and a flange providedfor a rubber gasket. 354 ELECTRIC WIRING 65 Fjgs. 49 and 50 show water-tight floor boxes which are for outletslocated in the floor. While the rules do not require that the floor outlet-box shall be water-tight, it is strongly recommended that a water-tight outlet be used in all cases for floor connections. In this casealso, the conduit opening is threaded, as well as the stem cover throughwhich the extension is made in the conduit to the desk or table. Whenthe floor outlet connection is not required, the stem cover may beremoved and a flat, blank cover be used to replace the same. A form of outlet-box used for flexible steel cables and steel ar-mored cable, has already been shown (see Fig. 5). There is hardly any limit to the number and variety of makes ofoutlet-boxes on the market, adapted for ordinary and for special con-.
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