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Jak vypočítat Wire Gauge

Co je Wire Gauge?

Wire Gauge Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Vzorec

Min Wire Size = Load Amperage / 0.8 (NEC 80% rule) → look up AWG table

Průvodce krok za krokem

  1. 1Calculate load in amps, apply 80% derating, look up NEC wire gauge table
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Worked Examples

Vstup
20A circuit, 80% rule
Výsledek
Min = 20/0.8 = 25A capacity → use 10 AWG

Common Mistakes to Avoid

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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