Electrical load calculation | GorkyCAD Pro
Correct load calculation is the basis for choosing the main breaker, cable size and panel power. GorkyCAD Pro calculates load automatically from placed devices.
What is demand load
Demand power is not the sum of all devices, but the sum considering that not everything runs at once. Demand and simultaneity factors per SP 256.1325800 are used.
', 'How GorkyCAD Pro calculates
Each device has power and cos φ. GorkyCAD Pro sums power by group, applies demand factors and computes the design current for each line and the input.
- Installed power
- Demand power by group
- Design current of lines
- Input and phase current
Why the calculation matters
Breakers, cable size and main breaker are chosen by design current. Wrong calculation leads to overload, breaker tripping or fire.
', 'Export
Calculation tables go into the explanatory note and PDF set for approval.
']FAQ
Which standard?
SP 256.1325800 — demand and simultaneity factors.
What is considered?
Device power, cos φ, demand factors.
Where is the result?
In the specification, diagram and explanatory note.
Frequently asked questions
Yes, all articles and calculators are completely free.
The site offers 21 free calculators: cable sizing, breakers, RCD, voltage drop and more.
In GorkyCAD Pro: plans, panels, calculations and a PDF set for free.
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