Historical
ANSI/ISA 60079-11 (12.02.01)-2011
Explosive Atmospheres - Part 11: Equipment protection by intrinsic safety "i"
This standard specifies the construction and testing of intrinsically safe apparatus intended for use in Class I, Zone 0, 1, or 2 hazardous (classified) locations as defined by the National Electrical Code, ANSI/NFPA 70 and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres.
Content Provider
The International Society of Automation [isa]