Related illustrations

0600

Knob and tube wiring

· p. 101

A perspective drawing shows knob-and-tube wiring routed through and along wood floor joists with cross bridging between them. Separate hot and neutral conductors pass through ceramic tubes where they penetrate the joists

0603

Fused neutrals in old wiring systems

· p. 102

The diagram shows an old lighting circuit with fuses in both the hot and neutral conductors, a switch in the hot conductor, and a light bulb. The hot-side fuse is intact, while the neutral fuse has blown and interrupted