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?

29) What is the minimum size of rigid steel conduit used for surface conduit wiring?