Historical
ANSI/ISA 61241-11 (12.10.04)-2006 (R2011)
Electrical Apparatus for Use in Zone 20, Zone 21 and Zone 22 Hazardous (Classified) Locations - Protection by Intrinsic Safety "iD"
This standard specifies requirements for the construction and testing of intrinsically safe apparatus intended for use in an explosive dust atmostphere and for associated apparatus that is intended for connection to intrinsically safe circuits which enter such atmospheres.
Content Provider
The International Society of Automation [isa]