1 This part of IEC 60079 specifies the construction and testing of intrinsically safe apparatus, intended for use in potentially explosive atmospheres and for associated apparatus, which is intended for connection to intrinsically safe circuits which enter such atmospheres. It also contains details of the test apparatus previously published as IEC 60079-3.
2 This standard supplements IEC 60079-0:1998, the requirements of which apply to intrinsically safe apparatus and to associated apparatus except as indicated in the following list.
If associated apparatus is protected by a type of protection listed in IEC 60079-0 then the requirements of that method of protection together with the relevant parts of IEC 60079-0 also apply to the associated apparatus. The list of exclusions which follows is directly applicable to associated apparatus intended for use in situations where there is no potentially explosive atmosphere and in other circumstances should be used in combination with the requirements of the other methods of protection.
IEC 60079-11:1999 history
2023IEC 60079-11:2023/COR1:2023 Corrigendum 1 — Explosive atmospheres — Part 11: Equipment protection by intrinsic safety "i"
2023IEC 60079-11:2023 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2019IEC 60079-11:2011/ISH6:2019 Interpretation sheet 6 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2019IEC 60079-11:2011/ISH5:2019 Interpretation Sheet 5 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2019IEC 60079-11:2011/ISH4:2019 Interpretation Sheet 4 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
1970IEC 60079-11:2006/ISH1:2019 Interpretation sheet 1 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2016IEC 60079-11:2011/ISH3:2016 Intrepretation sheet 3 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
1970IEC 60079-11:2011/ISH2:2016 Interpretation sheet 2 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2014IEC 60079-11:2011/ISH1:2014 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"; Interpretation sheet 1
2012IEC 60079-11:2011/COR1:2012 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"; Corrigendum 1
0000 IEC 60079-11:2011 RLV
1970IEC 60079-11:2006/COR1:2006 Corrigendum 1 - Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
2006IEC 60079-11:2006 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
1999IEC 60079-11:1999 Electrical apparatus for explosive gas atmospheres - Part 11: Intrinsic safety "i"
1991IEC 60079-11:1991 "Electrical Apparatus for Explosive Gas Atmospheres Part 11: Intrinsic Safety ""i"" (Edition 3.0)"
1984IEC 60079-11:1984 Electrical apparatus for explosive gas atmospheres Part 11: Construction and test of intrinsically-safe and associated apparatus (Edition 2.0)
1976IEC 60079-11:1976 Electrical apparatus for explosive gas atmospheres Part 11: Construction and test of intrinsically-safe and associated apparatus (Edition 1.0)