2. ELECTRICAL SYSTEM IN BUILDING
SUPPLY OF ELECTRICITY FROM DAM TO GRID
SINGLE /3 PHASE SUPPLY
PROTECTIVE DEVICES IN ELECTRICAL INSTALLATIONS
EARTHING
TYPES OF WIRES
PLANNING ELECTRICAL WIRING FOR BUILDING
SUBSTATIONS
MAIN DISTRIBUTION BOARDS
HOME SUPPLY
31. Alternate Source of Electric Supply
A stand by electric generator should be installed to
supply power to staircase and corridor lighting circuits
fire lifts the standby fire pumps smoke extraction and
damper system in case of failure of normal electric
supply.