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如何计算Electrical Load

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Electrical Load Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

公式

Total Load = Σ (Wattage × Usage Hours) per circuit

分步指南

  1. 1List all devices on circuit, sum wattages
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

例题解析

输入
Lights 300W + outlets 1200W + appliance 1500W
结果
Total Load = 3000W on 20A circuit = 25A → overloaded

常见错误注意事项

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

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