chrisplusian
Member
- Location
- Orange Park, FL
- Occupation
- Automation Systems Engineer
I know 504.80(A) and 504.80(B) require marking an intrinsically safe circuit, but I have seen nothing indicating nonincendive circuits need to have similar markings. 504.80(B) informational note 1 and 2 give some indication as to why intrinsically safe circuits need to be marked, and considering the concept behind nonincendive is similar, why is there no requirement for the nonincendive circuits?