Maximum demand and service current
What power do I ask for at the service connection for this dwelling?
Advanced conditions and parameters · Single-phase (230 V) · cos φ 0.95
Result
Maximum demand20.8kW
Resulting current95.19A
Connected load32kW
Utilisation factor ku0.650
Diversity factor ks1.00
Pa = Pi × ku × ks
The power approved at the service connection is set by the distribution operator through the technical connection approval. The value here is the calculation basis you take to the application, not the operator’s decision.
Art. 3.2.1.2 + 3.2.2.1, Tabelele 3.3 și 3.4 I7-2011
Calculation assumptions
The result holds under the conditions below. If your situation differs, change the values in the advanced section.
- the table values are indicative — the standard says the factors are set by the designer and the tables are used “in the absence of that information”
- power factor cos φ = 0.95
- 230 V single-phase / 400 V between lines on three-phase
The results are indicative and do not replace a design checked by a registered electrician. Every tool states its assumptions.