A 3-wire knob and tube feed

By Arlen Rienstra; posted April 24, 2005

View Original (1280 x 960) 365KB


Observe the transition from ridged conduit through the floor to knob and tube open wiring. The conduit brought the 3-wire circuit from the service panel in the basement and terminated with a 3-hole porcelain insulator (conduit) through which the wires passed.