Section 02 · Algebraic Circuits & Conduit
The Electrician
Pick a lab below. Every calculator obeys real NEC rules — ampacity, derating, continuous-load limits, and voltage-drop targets.
Panel & Service Capacity Calculator
Demand = Σ(non-cont) + Σ(cont × 1.25) • Demand ≤ Service rating
A 200 A panel cannot legally carry 200 A of demand. NEC §220 requires continuous loads sized at 125% before totaling.
Service:
Connected (raw)
113.8 A
Demand (NEC)
121.4 A
Service utilization61%
Headroom: 78.6 A
Continuous × 1.25 per NEC §215.2(A)(1).