It is not a good idea to place a huge amount of lights and plugs inside the house. Go for the necessary number. An excess will only increase the cost of construction. A double insulated PVC 1/18 copper wiring can be used for homes.
Lights should be fitted 2.5 meters above the floor. Switches should be placed at a height of 1.5 meters. The length of the cables needed and the number of lamps needed can be calculated from this. The switches required for a room should be placed on a switch board. This is not only cost effective but also allows for easy access. If open wiring is done, then in addition to the 1/18 PVC wire, a 3.5×1/18 cm teak panel should also be used. Plugs, one way switches, two-way switches, teak boards, nails, wiring clips, PVC Pipes, copper wires, and wooden blocks are all needed for the wiring work. It is advisable to construct 100 watt plugs for reading rooms and kitchens. Do not use low quality cables just because of the cost. It is better to choose a definite watt bulb at a predetermined position than to go for high wattage lamps.