8(i)
The diagram shows wiring in a meter room of a building.
(a) What is the current rating of device X?
(b) What is the difference between the switch Z shown in the diagram and the switches you use to operate different appliances at home?
(c) What is the unit of the physical quantity displayed in Y?
Show SolutionHide Solution↓
(a) X is a company fuse or pole fuse. It does not have a fixed current rating. It depends on the load capacity of the connection.
(b) Z can connect & disconnected live and neutral line simultaneously. But the switch which is used to operate domestic appliances connect & disconnected live line only.
(c) Unit is kWh.