. Practical electricity for beginners. consists oftwo distinct metallic partsseparated from each otherby some insulating mater-ial, usually porcelain. The rv„ on rpi. 4.* v j oue metallic part is in Fig. 39. The attaching cord *^ commonly used with a heater, the bottom of the receptacle, The switch is omitted in many . ^, ,, . ,, , cases. and the other is m the form of a thin sheet around its side. One of the wires from the source of current is connected to the bottom piece, and the other to the side piece. 67. Extension-Cord Plug.—The plug A (Fig. 40),which fits into the receptacle, consists
. Practical electricity for beginners. consists oftwo distinct metallic partsseparated from each otherby some insulating mater-ial, usually porcelain. The rv„ on rpi. 4.* v j oue metallic part is in Fig. 39. The attaching cord *^ commonly used with a heater, the bottom of the receptacle, The switch is omitted in many . ^, ,, . ,, , cases. and the other is m the form of a thin sheet around its side. One of the wires from the source of current is connected to the bottom piece, and the other to the side piece. 67. Extension-Cord Plug.—The plug A (Fig. 40),which fits into the receptacle, consists also of two metallicparts insulated from each other—one on the end of the plugand the other on its side. These two parts are connected tothe two wires in the cord. When this plug is screwed farenough into the receptacle to bring the metallic end in con-tact with the piece in the bottom of the receptacle, the linewires are connected to the wires in the cord. These wiresform a conducting circuit, thru the switch, to the metallic. HEATER-CIRCUIT TROUBLES 63
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectelectri, bookyear1921
