Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i" (Second revision) (IEC 60079-11:2011, IDT)
This Malaysian Standard specifies the construction and testing of intrinsically safe apparatus intended for use in an explosive atmosphere and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres. This type of protection is applicable to electrical equipment in which the electrical circuits themselves are incapable of causing an explosion in the surrounding explosive atmosphere.
