🔌
Electrical Power Balance
FreeList your equipment, apply simultaneity factors and size your main switchboard.
📊Power assessment
🔌Installed P
142kW
⚡Utilised P (Ku)
73,85kW
📈P with reserve
88,62kW
🔋Apparent power
105,28kVA
⚡Rated current
152A
🔧MSB rating
160A
Recommended subscribed power
108kVA
Weighted average cos φ
0,84
Breakdown by item
LED lighting2.0 kW inst. → 1.6 kW util.
Desktop PC + monitor15.0 kW inst. → 10.5 kW util.
Split AC25.0 kW inst. → 18.8 kW util.
Socket outlets (per circuit)70.0 kW inst. → 28.0 kW util.
Lift30.0 kW inst. → 15.0 kW util.
📐 Formulas
P_installée = Σ(P_unit × Qté)
P_utilisée = Σ(P_installée × Ks)
S_apparente = P_utilisée / cos φ
I = P / (√3 × U × cos φ)Ks = simultaneity factor (not all equipment runs at once). Power reserve covers future extensions.
Standards & regulations
- NF C 15-100Installations électriques à basse tension
- NF C 14-100Installations de branchement (ENEDIS)
- UTE C 15-105Guide pratique — Détermination des sections de conducteurs
This tool provides indicative estimates. Results do not substitute professional advice. Always verify with current regulations.
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