our company recently had an arc flash study done. we have the results back and in the beginning of the report is a paragraph that say something like " arc flash studies are done with the most complete data available" in more words than that but that's the idea. two paragraphs below it states that the data used in our study is assumed based on the overcurrent device rating should have the proper sized conductors for what ever the device is rated at. the person doing the study would not open one panel cover. he told me if I opened a panel cover (for inspection purposes) he would have to leave the building. this was done by a highly recognized engineering firm associated with our electrical supply company. I am thinking I may have to throw this study out and start all over again. What if any opinion does this page have on this?