Electrical engineers design lighting distribution in buildings by determining the lighting needs of each area, considering the location of light sources, and considering the impact on energy consumption and costs. They use lighting calculations and computer simulations to evaluate different lighting scenarios, and determine the best combination of fixtures and controls to achieve the desired lighting levels while minimizing energy consumption. They also consider safety and emergency lighting requirements, such as exit signs and emergency lighting systems. The final design includes specifications for the type and location of light fixtures, electrical distribution systems, and controls, as well as the required electrical capacity for each lighting circuit.
