Examples
Examples
Try the starting example
- Design current (A)
- 25
- Protective-device nominal current (A)
- 32
- Adjusted conductor rating (A)
- 40
- Device minus design margin (A)
- 7
- Conductor minus device margin (A)
- 8
- Both entered inequalities satisfied
- yes
Try another scenario
- Design current (A)
- 26
- Protective-device nominal current (A)
- 32
- Adjusted conductor rating (A)
- 40
- Device minus design margin (A)
- 6
- Conductor minus device margin (A)
- 8
- Both entered inequalities satisfied
- yes
Calculation method
Calculation method
Device minus design margin (A)
Check entered nominal relationship design current ≤ device rating ≤ adjusted conductor rating; no full protection coordination.
Conductor minus device margin (A)
Check entered nominal relationship design current ≤ device rating ≤ adjusted conductor rating; no full protection coordination.
Both entered inequalities satisfied
Check entered nominal relationship design current ≤ device rating ≤ adjusted conductor rating; no full protection coordination.
Symbols and units
- a
- Design current (A)
- b
- Protective-device nominal current (A)
- c
- Adjusted conductor rating (A)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Check entered nominal relationship design current ≤ device rating ≤ adjusted conductor rating; no full protection coordination. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.