Arc energy analysis packages can be very expensive, but they are a worthwhile investement if you have a large electrical installation that undergoes frequent changes.
There are two forms of software, packages that carryout just the arc energy analysis and more extensive packages that also carryout fault level, discrimination studies and equipment evaluations.
Arc Analysis only programs.
You can download the IEE1584 standard that will contain an Excel spreadsheet you can use to do the analysis. Arcpro from Kinectrics and Arc Flash module from SKM are also available as stand alone packages.
Full Fault Level and Arc Analysis Packages.
Power Tools for Windows from SKM and EasyPower from ESA are two programs designed to carryout a full electrical analysis of an installation. They can be purchased with different modules and node quantities to provide the most cost effective solution for your needs.