IEC 61779-6:1999
Electrical apparatus for the detection and measurement of flammable gases - Part 6: Guide for the selection, installation, use and maintenance of apparatus for the detection and measurement of flammable gases
- Standard No.
- IEC 61779-6:1999
- Release Date
- 1999
- Published By
- International Electrotechnical Commission (IEC)
- Status
- 2007-08
- Latest
- IEC 61779-6:1999
- Replace By
- IEC 60079-29-2:2007
- Scope
- 1 This part of IEC 61779 gives guidance on the selection, installation, use and maintenance of electrically operated group II apparatus for the detection and measurement of flammable gases complying with the requirements of IEC 61779-1 to IEC 61779-5. It is a compilation of practical knowledge to assist the user, and applies to apparatus, instruments and systems that indicate the presence of a flammable or potentially explosive mixture of gas or vapour with air by using an electrical signal from a gas sensor to produce a meter reading, to activate a visual or audible pre-set alarm or other device, or any combination of these. NOTE - When in classified areas, the apparatus should be so installed and used that it is not capable of itself igniting a combustible gas-air mixture. It should therefore comply with the requirements of IEC 60079-10. For the purpose of this standard, flammable gases shall include flammable vapours. 2 This standard applies only to group II apparatus intended for use in industrial and commercial safety applications, involving areas classified in accordance with IEC 60079-10. For the purpose of this standard, apparatus includes a) fixed apparatus; b) transportable apparatus; and c) portable apparatus. 3 This standard is not intended to cover the following: a) apparatus intended only for the detection of non-flammable toxic gases; b) apparatus of laboratory or scientific type intended only for analysis or measurement purposes; c) apparatus intended for underground mining applications; d) apparatus intended for applications in explosives processing and manufacture; e) apparatus intended only for process control applications; f) apparatus intended for the detection of a potentially flammable atmosphere esulting from dust or mist in air.
IEC 61779-6:1999 history
- 1999 IEC 61779-6:1999 Electrical apparatus for the detection and measurement of flammable gases - Part 6: Guide for the selection, installation, use and maintenance of apparatus for the detection and measurement of flammable gases
IEC 61779-6:1999 Electrical apparatus for the detection and measurement of flammable gases - Part 6: Guide for the selection, installation, use and maintenance of apparatus for the detection and measurement of flammable gases was changed to IEC 60079-29-2:2007 Explosive atmospheres - Part 29-2: Gas detectors - Selection, installation, use and maintenance of detectors for flammable gases and oxygen.
