Building Construction Handbook, Eighth Edition

(Nancy Kaufman) #1
Lighting Circuits ~ these are usually wired by the loop-in method
using a line, neutral and circuit protective conductor to earth
cable with a 6 amp fuse or miniature circuit breaker protection. In
calculating the rating of a lighting circuit an allowance of
100 watts per outlet should be used. More than one lighting circuit
should be used for each installation so that in the event of a
circuit failure some lighting will be in working order.

Electrical Accessories ~ for lighting circuits these consist mainly of
switches and lampholders, the latter can be wall mounted, ceiling
mounted or pendant in format with one or more bulb or tube
holders. Switches are usually rated at 5 amps and are available in
a variety of types such as double or 2 gang, dimmer and pull or
pendant switches. The latter must always be used in bathrooms.

Electrical Installations

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