Understanding Maximum Demand Calculation: A Comprehensive Guide

Inventory of Circuits: Listing all individual circuits and their full connected loads.

Maximum demand refers to the highest electrical load expected to be drawn from a supply point at any single time. It is a critical design feature because it dictates the size of distribution cables, main protective devices, and the overall incoming supply capacity from the network operator.  Core Calculation Methods 

• ( DF = \fracMaximum\ DemandConnected\ Load )
• Example: A floor with 100 lights (50 kW CL) but only 30 kW ever runs simultaneously → DF = 0.6.

7.3 Electric Vehicle Charging

• Home chargers: Use diversity (e.g., assume 30% of chargers on at same time for MD).
• Fleet depots: Diversity factor near 1.0 (all charge simultaneously).