Dpc, it's more of a competitive issue regarding min melt and total clearing times. They publish avgerage melt curves as you said, and to get your min melt and total clearing, I believe it is +/- 10%. Has been awhile, you could confirm that Brickeletric by calling either of the fuse companies Dpc...
Your breakers Time Current Curves (TCC) when overlayed on your cable damages curves, should appear to the left of your cable damage curves. Below 0.01s is the short circuit time frame, usually not shown on breakers as they are typically slower to open under fault conditions.
Not as familiar...
Dpc, your calculation is correct, and that is the maximum amount of fault current the trandformer can produce. This fault current would be limited by the source feeding the primary side of the transformer.
Downstream of the Secondary side, the fault current would be reduced due to the...
