Dynamic elaboration on the Art & Science of Hazardous Area Protection
This simple Synchronizing (In fact HARMONIZING) device does not exists ……presently.
The concept is there and The Ex-perts are aware of it .
IEC cannot guide for clarity in NEC domain. Same is true for NEC ….which cannot guide within the IEC domain
IEC & NEC , each have its own UNIQUE codes
The underlying object is SAFETY of all involved stake holders . (Persons & Property ) .
The common starting point (NEC & IEC) is FIREDAMP (That was more than 100 years back).
The answere is simple :-
Once we understand the concept of a EXPLOSIVE (FIRE) TRIANGLE