We are in the process of doing an arc flash study for our facility. I think the Sr. Engineering who is doing the calculations is a bit confused and I need some direction on how to help him.
He is calculating the arc flash based on various working distances depending on the task to be performed. Example, racking a 480V feeder breaker in a substaion has a working distance of 24". If performing voltage testing on the breaker to verify that the 480V power has been removed the working distance is 18". He then wants to create a label for each task and place it on the equipment.
Is this the correct way to do this study?
He is calculating the arc flash based on various working distances depending on the task to be performed. Example, racking a 480V feeder breaker in a substaion has a working distance of 24". If performing voltage testing on the breaker to verify that the 480V power has been removed the working distance is 18". He then wants to create a label for each task and place it on the equipment.
Is this the correct way to do this study?