Electrical installations design, selection and erection iec 6007915, electrical apparatus for explosive gas atmospheres part 15. The process of creating and modifying standards is slow because of the lengthy but. Legally binding document step out from the old to the newjawaharlal nehru. It specifies requirements for pressurized enclosures containing a limited release of a flammable substance. Protection of equipment and transmission systems using optical radiation asnzs 60079. Iec 6007919 is never used in isolation it is always used in conjunction to the iec protection type standards used when certifying the equipment. Temperature class or ignition temperature of the gas or vapour involved. Classification of areasexplosive gas atmospheres iec 60079. Electrical installations in hazardous areas other than mines. For example for an ex d machine certified in 1984 in the uk by eecs, the service facility would also need to have bs 5501 part 1 general requirements and bs 5501 part 5 flameproof enclosure d 3. Iec 60079 0 explosive atmospheres part 0 equipment general requirements. Equipment protection by intrinsic safety i iec 6007914. A few months ago was released the updated version of the european standard en 60079 14 concerning the design, selection and installation of electrical systems for areas with potentially explosive atmosphere that has replaced the old version, which will remain in force until january, 1st 2017.
Conception, selection et construction des installations electriques international electrotechnical commission commission electrotechnique internationale xg. Date isa6007911 ul 6007911 7 general notes this is the common isa and ul standard for explosive atmospheres part 11. Standards and certification for hazardous area instrumentation. Those covering hazardous areas are created by a specific committee tc31 and its numerous subcommittees and form part of the iec 60079 series. Equipment protection by intrinsic safety i iec 6007911.
This standard supplements and modifies the general requirements of iec 600790. Classification of areas, explosive gas atmospheres iec en 60079 102. Iec 60079 14 should be immediately amended with the reinstatement of the assessment procedure used in iec 60079 14. Iec 6007914 reminds the users to carry out the inspection. It is the second edition of isa600790 superceding ansiisa12. Where a requirement of this standard conflicts with a requirement of iec 60079 0, the requirement of this standard takes precedence. Area classification document see iec 60079101 and iec 60079102. Electrical installations design, selection and erection partie 14. This standard supplements and modifies the general requirements of iec 60079 0. Electrical installations design, selection and erection.
Inspection and maintenance of electrical installations in hazardous areas other than mines foreword 1 the iec international electrotechnical commission is a worldwide organization for standardization. Classification of areas, combustible dust atmospheres dust groupsepl the selection and erection. Explosion protection theory and practice phoenix contact. The asnzs 2381 series is intended to be replaced by asnzs 60079.
Principles of explosionprotection crousehinds series. Work is currently underway to merge these two sets. Classification of areas explosive dust atmospheres engelsk tittel. Electrical equipment and ex components of type of protection increased safety e are either. Electrical apparatus for explosive gas atmospheres part xx.
Classification of areas explosive gas atmospheres international electrotechnical commission ics 29. It is the fifth edition of isa6007911 and the fifth edition of ul 6007911. Iecex international conference 2017 shanghai, china. Electrical installations in hazardous areas other than mines this norm is withdrawn since 26112008. Classification of areas, combustible dust atmospheres the selection and construction of electrical installations is defined by standard iecen 6007914. Protection technique for the equipment glands, adapters and blanking element protection technique ex. Explosive atmospheres part 14 electrical installations design selection and erection. This part of iec 60079 contains the specific requirements for the construction and testing of electrical apparatus with pressurized enclosures, of type of protection p, intended for use in explosive gas atmospheres. The requirements of this standard apply only to the use of equipment under standard atmospheric conditions as defined in iec 600790. Users are cautioned that even mild oxygen deficiency may be due to toxic concentrations of some other gas or vapour, which may not be detectable. The merging of the requirements for combustible dust atmospheres from iec 6124111. Installing and combining the equipment on the users premises is not considered. The requirements of this standard apply only to the use of equipment under standard atmospheric conditions as defined in iec 60079 0. Classification of areas explosive dust atmospheres iec 60079102.
The en 6007914 standard the correct use of cable gland. Where applicable, gas, or vapour or dust classification in relation to the group or subgroup of the electrical equipment. This part of iec 60079 specifies requirements for the construction, testing and marking for group ii electrical equipment with type of protection, n intended for use in explosive gas atmospheres. Iec 60079 series explosive atmosphere standards ansi webstore. Specifies requirements for the construction, testing and marking for group ii electrical equipment with type of protection n intended for use in explosive gas atmospheres. Pdf iec 60079 0 explosive atmospheres part 0 equipment. Information on flammable mists is provided in annex d. Classification of areas, explosive gas atmospheres iecen 60079102. Portable apparatus covered by the iec 60079291bs en 60079291 and the iec 60079292bs en 60079292 commonly have additional detectors for specific toxic gases and also for oxygen deficiency.
A few months ago was released the updated version of the european standard en 6007914 concerning the design, selection and installation of electrical systems for areas with potentially explosive atmosphere that has replaced the old version, which will remain in force until january, 1st 2017. Switchgear with nc and no contacts such as manual motor starters, circuit. Electrical installations in hazardous areas other than mines iec tcsc 31j on. Into the world of iec 6007914 expert electrical technologies. Classification of areas, combustible dust atmospheres the selection and construction of electrical installations is defined by standard iec en 60079 14. The new edition of iec 600790 2007 en 600790 2009 progressively replaces iecen 6007910 and iecen 6124110 by the two following standards. This part of iec 60079 and other standards supplementing this standard.
Classification of areas explosive dust atmospheres varetype. International standard norme internationale webstore. It is the second edition of isa 60079 0 superceding ansiisa12. Equipment protection by type of protection n this part of iec specifies the requirement for the construction, testing and marking for group ii electrical equipment with type of protection n.
Iec 6007914 allows measures not compliant with iec 6007911 for limiting um. Summary of issues enclosure volume does not form a part of the assessment procedure for whether a barrier gland is required, whereas our investigation has confirmed that there is a clear correlation between. Applies to electrical equipment where the rated voltage does not exceed 15 kv r. Equipment dust ignition protection by enclosure t number of amendments. This document is a modification of the iec document and includes us deviations. An important part of safety procedure is the initial inspection. Where a requirement of this standard conflicts with a requirement of iec 600790, the requirement of this standard takes precedence. Iec 6007914 should be immediately amended with the reinstatement of the assessment procedure used in iec 6007914. Portable apparatus covered by the iec 60079 291bs en 60079 291 and the iec 60079 292bs en 60079 292 commonly have additional detectors for specific toxic gases and also for oxygen deficiency. Electrical installations design, selection and erection iec 6007914. Electrical installations design, selection and erection bs en 60079 14. For other conditions, additional precautions may be necessary, and the equipment should be certified for these other conditions. It describes a test method intended for the measurement of the maximum experimental safe gaps mesg for gas or vapourair mixtures under normal conditions of temperature1 and pressure so as to permit the selection of an appropriate group of equipment. Amendment to iec 6007919 standard for explosive atmospheres.
Iec 60079 14 reminds the users to carry out the inspection. Part 2 of 2 iecex international conference 2017 shanghai, china. This is the common isa and ul standard for electrical apparatus for explosive gas atmospheres part 0. This standard applies to electrical equipment where the rated voltage does not exceed 15 kv r. The merging of the requirements for combustible dust atmospheres from iec 61241 11. This part of iec 60079 provides guidance on classification of gases and vapours. Equipment protection by intrinsic safety i iec 60079 11. Note iec 6007914 limits the installation of equipment employing type of protection. September 9, 2012 download iec 6007910electrical apparatus for explosive gas atmospherespart 10classification of hazardous areas pdf edit delete tags autopost.
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