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Project Arc-Flash

Title Content
Title Project Arc-Flash
Version 0.02
Author Teddy Rogers
Author website https://tuts4you.com/
Description
[Project Arc-Flash]

Project Arc-Flash is an arc-flash calculator based upon IEEE 1584 used to determine the arc-flash hazard distance and incident energy at switchboards, open air enclosures, etc. This calculator will also give you the safe working (approach) distances.

This is an unfinished project from the result of an afternoon of coding. I had ambitions to develop this further as you will see from the unfinished tabs but my original goal was solely the AC arc-flash calculation. Unfortunately with other interesting projects consuming my time I have decided to release this as-is. Most tabs are non-functioning but the arc-flash calculator, under the "AC Calculator" tab has been tested and is accurate. The DC Calculator functions but I have neither tested nor verified the results and I strongly advise you to ignore it. The other tabs are either blank or place holders which gives you some indication of what the finished project would have looked like.

The calculator has no feature to calculate the arcing current and time-current curves of arc-fault energy levels of fuses and circuit breakers. You will have to calculate these yourself or find another calculator.

If you would like me to continue development of Project Arc-Flash or have some feature suggestions please contact me and let me know, my contact details are at the top.

I currently have zero interest in developing this further so I have included the source code for anyone interested in either the calculation or those wanting to develop it further themselves. All I ask is if you use the code drop me a message and/or buy me a beer!

Usage (AC Calculator tab): **********

I won't explain the AC arc-flash calculation here, if you have any queries I suggest reading IEEE 1584. I also suggest you read IEEE 1584 before using the AC Calculator to have a full understanding of what the options are and how best to use them to calculate incident energy and boundary distances of your switchboards and enclosures.

The AC Calculator supports standard configuration types defined in the IEEE and automatically defaults within the limits of the standard ie. system voltage range, conductor gap distances, etc. Hovering over the entry fields will inform you of the data range you can input in that field, should your value fall outside of this range you will be prompted with a warning message. If you wish to use values in the calculation that fall outside of the range set by the IEEE click on the "Distance Factor" checkbox and all range checks will be ignored.

The calculator also supports the Lee Method which is a preferred AC arc-flash calculation performed on voltages above 15kV. To use this enable the checkbox in the "System Voltage" field. Note you can enable the Lee Method for calculations on voltages below 15kV.

There are a couple of sliders, the one on the left simply scales the level of rounding you want to use after the decimal place. It's a little over the top, most engineering calculations only need arc-flash calculations rounded to two or three decimal places - its there if you get bored!

The second scale is probably most useful because it quickly lets you scale to a particular boundary distance at a percentage of the total arc-fault current without having to run through multiple calculations over-and-over.

One other nice feature is the checkbox adjacent to the "PPE Rating" field that allows you to select between joules and calories. The calculator automatically converts all results to that unit of measurement.

That about it, it's a calculator!

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Publish time
5 years ago
2018-04-15 15:32:46
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