A consumer has a work area that he wishes to illuminate with single 80W, 220V tungsten fitting. The existing light points, which are to be removed are controlled by a single gang 10A switch. This switch is to remain in the design. How many light fittings will

A consumer has a work area that he wishes to illuminate with single 80W, 220V tungsten fitting. The existing light points, which are to be removed are controlled by a single gang 10A switch. This switch is to remain in the design. How many light fittings will

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter3: Determining The Required Number Of Branch Circuits, Lighting Outlets, And Receptacle Outlets

Section: Chapter Questions

Problem 18R

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Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.

Question

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A consumer has a work area that he wishes to
illuminate with single 80W, 220V tungsten fitting. The
existing light points, which are to be removed are
controlled by a single gang 10A switch. This switch
is to remain in the design. How many light fittings will
the switch support.
Current consumed by one fitting is
The switch must carry the current of
Number of fitting supported by the switch is

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