24) How many light, fan and 6A socket outlet points are recommended for a sub-circuit as per IE rule?

25) Which is the height of horizontal run of cables as per NE code in domestic wiring?

26) What is the recommended height of socket outlet from the floor level as per BIS?

27) Which helps the wireman and the consumer to select the materials for wiring?

28) Which factor is to be considered for selection of supply (Single (or) 3 phase) for wiring?