In this video, I explain step-by-step how to calculate the electrical load and size the distribution system for a multi-story residential building, including: ✅ Distribution Board (DB) Sizing for 2 BHK & 3 BHK Flats ✅ Sub-Main Distribution Board (SMDB) Calculation . But with some simple math and planning (don't worry, we'll walk through it!), you can design a system that works smoothly even when you're running all the gadgets. The distribution box is the central hub of the home circuit and the general control of our daily power consumption. 1 Horizontal subsystem, calculation method for cable usage: Average cable length = (horizontal distance of the farthest information point + horizontal distance of the nearest information point) / 2 + 2H (H-floor height) Actual average cable length = average cable length ×. Load capacity calculation: Determine the total power demand of industrial facilities, including continuous load (such as production lines, pumps) and intermittent load (such as maintenance equipment, temporary workstations), and calculate the rated current required for each power distribution box.
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