Available fault current

[jpjarrard1977]

So on the bussman available fault curre t app there are three options. Transformer, add conductors and buss run. Which one gives me my fault at my main gear and what is the bus run? Is that if I'm using buss duct and not wire? And than the new addition to 110.24 says to make the calculation available to people. How do I do that.

 

[augie47]

The "transformer" gives you the available fault from a transformer on (service transformers thats normally provided by POCO so you don't need to calculate). Once you have that you can calculate the current at the end of a run of conductors or buss. Once you have filled in the data you can create a label and e-mail it to be printed