Site operators sometimes ask about how to make their equipment intrinsically safe. For example, one firm inquired about how to make its 480V motors intrinsically safe. Such a lack of understanding of what “intrinsically safe” means can lead to a huge waste of resources. It can also result in unnecessarily dangerous installation.
Intrinsically Safe Systems, Part 1
When working with intrinsically safe equipment, you must install it per the control drawing(s) [Sec. 504.10].