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  1. AllGreek2me

    Ampacity of Conductors in Cable Trench

    Kyle, we use CymeCap software to make these calculations. You'll need to consider the cable type, temp. rating, concrete encasement, soil resistivity, depth, number of cables, load, load factor, DB or duct, etc. Check out ICEA documents P-53-426 and S-66.524
  2. AllGreek2me

    TRANSFORMER ROOM FORCED AIR VENTILATION DESIGN CALCULATION

    In case you're still working on this -- We use a "rule of thumb" of 5cfm per kVA of transformer, which is conservative, but helps account for issues that hinder the performance of the blower. This would give you a value of 5000 cfm forced air ventilation. You should place the intake and exhaust...
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