Electrical Installation Calculations and Design : (design sequence, load characteristics, distribution design, isolation and switching, simple installations and final circuits, fault rating of switchgear, final circuit overcurrent devices and cables, final circuit voltage drop limitations, fault protection, short-circuit current protection, protective conductors, final circuit current demand, complex installations, selection of cables for current-carrying capacity, preliminary design, overcurrent requirements, current-carrying capacity tables, impedance of cooper and aluminium conductors, harmonics, cable ratings, voltage drop overcurrent protection, protection against voltage disturbances, busbar trunking, fault currents) .