In the diagrams of lighting circuits in the following pages, the symbols given below will be used. See Fig. 14.

Symbol a is a safety plug, or cut-out.

Symbol b is a wall switch.

Symbol c is a 32-candlepower lamp.

Symbol d is a dynamo.

Symbol e is a 16-candlepower lamp.

Symbol f is a 16-candlepower lamp with a key socket

Symbol g is a 2-arm bracket with key sockets.

Symbol h is a 3-light chandelier with key sockets. Symbol i is a 10-candlepower lamp.

23 Conventional Symbols 45123 Conventional Symbols 45223 Conventional Symbols 45323 Conventional Symbols 45423 Conventional Symbols 45523 Conventional Symbols 45623 Conventional Symbols 45723 Conventional Symbols 45823 Conventional Symbols 459

Fig. 14.