It is the fifth edition of isa6007911 and the fifth edition of ul 6007911. Guidelines for managing inspection of ex electrical. This part of the iec 60079 series applies to users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only, where the hazard may be caused by flammable gases, vapours, mists, dusts, fibres or flyings. An important part of safety procedure is the initial inspection. This standard supplements and modifies the general requirements of iec 600790, except as indicated in table 1. Classification of areas, combustible dust atmospheres. This document is a modification of the iec document and includes us deviations. Electrical installations inspection and maintenance iec 60079 17, ed. This standard applies to electrical equipment where the rated voltage does not exceed 15 kv r. This part is missing ity f ence 9 i n t o l e r 8 a b l e 7 6 a r e g 5 l i o n 4 a 3 b r 2 a p 1 r.
The international electrotechnical commission iec is a worldwide organization for standardization comprising. Assemblies with a fully specified configuration of parts are put together and placed on the. Installing and combining the equipment on the users premises is not. Electrical apparatus for explosive gas atmospheres part xx.
The text of the international standard iec 6007917. Principles of explosionprotection crousehinds series. Inspection and maintenance of electrical installations in hazardous areas other than mines. Standards and certification for hazardous area instrumentation. Gas detectors, selection, installation, use and maintenance of detectors for flammable gases and oxygen. 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. Din en 60079102 201510 explosive atmospheres part 102. International standard iec 60079101 has been prepared by subcommittee 31j. Inspection and maintenance of electrical installations in hazardous areas other than mines iec 6007917.
This part of iec 60079 provides guidance on classification of gases and vapours. Pdf electrical installations in hazardous locations classified areas need careful attention. Where the term na appears in any part of an extr package, it indicates that the associated issue was considered not applicable to the involved ev aluation. This part of iec 60079 contains the specific requirements for construction and assessment of intrinsically safe electrical systems, type of protection i, intended for use, as a whole or in part, in locations in which the use of group i, ii or iii apparatus is required. The requirements for intrinsically safe systems are provided in iec 6007925.
This part of iec 60079 and other standards supplementing this standard. October 2015 page 17 comparing en 60079101 and api 500 hazardous area classification of a gas compressor substance. Electrical installations design, selection and erection bs en 60079 14. This standard supplements and modifies the general requirements of iec 600790. Installation, inspection and maintenance of electrical. Where the equipment is required to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, additional protection requirements may be necessary. Hazardous areas explosionproof solenoids 00129 gb2017r01 availability, design and specifications are subject to change without notice. This part of iec 60079 specifies the requirements for the design, construction, testing and marking of electrical apparatus with type of protection increased safety e intended for use in explosive gas atmospheres. Explosion protection theory and practice phoenix contact. The objective of this standard is to set out the requirements for ongoing inspections of electrical. The requirements of this standard apply only to the use of equipment under standard atmospheric conditions as defined in iec 600790. The document is a modification of the iec document and includes u. This standard applies to electrical apparatus where the rated voltage does not exceed 11 kv r. Din en 6007917 200406 electrical apparatus for explosive gas atmospheres part 17.
Pdf the importance of inspections on electrical installations in. This preface is included for informational purposes and is not part of isa600790. Flammable gas detection apparatus may be used whenever there is the possibility of a hazard to life or property caused by the accumulation of a flammable gasair mixture. Australiannew zealand standard explosive atmospheres part 28. Inspection and maintenance of electrical installations in. Iec 6007914 is one of the most important international standard,specifying the requirements for. The en 6007914 standard the correct use of cable gland. The merging of the requirements for combustible dust atmospheres from iec 61241 11. 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. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to. 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. Classification of mixtures of gases of vapours with air. Iec 6007919 is never used in isolation it is always used in conjunction to the iec protection type standards used when certifying the equipment. Classification of areasexplosive gas atmospheres iec 60079101, ed.
Equipment protection by intrinsic safety i tc 31sc 31g. In accordance with iecex 02, a receiving excb may request a sample of the ex equipment and. Amendment to iec 6007919 standard for explosive atmospheres part 19. All bsi british standards available online in electronic and print formats. Guidelines for managing inspection of ex electrical equipment ignition risk in support of iec 6007917 first edition october 2008 published by. Classification of areasexplosive gas atmospheres iec. Classification of areas explosive dust atmospheres iec 60079102. Introduction of iecex the iec is the world leading organization that prepares and publishes international standards for all electrical, electronic and related technologies collectively known as electrotechnology. 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. Iec 60079 series explosive atmosphere standards ansi webstore. Sp12 committee to develop an ansi standard that is harmonized with iec 600790 to the fullest extent possible. Electrical apparatus for use in the presence of combustible dust part 17. It specifies requirements for pressurized enclosures containing a limited release of a flammable substance.
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. Electrical installations inspection and maintenance. International iec standard 6007917 third edition 200207 electrical apparatus for explosive gas atmospheres part 17. Date isa6007911 ul 6007911 7 general notes this is the common isa and ul standard for explosive atmospheres part 11. Inspection and maintenance of electrical installations in hazardous areas other than mines this englishlanguage version is derived from the original bilingual publication by leaving out all frenchlanguage pages. The international electrotechnical commission has released an amendment to iec. Electrical equipment and ex components of type of protection increased safety e are either. Where a requirement of this standard conflicts with a requirement of iec 600790, the requirements of this standard shall take precedence. Australiannew zealand standard explosive atmospheres part 10. Classification of areas, explosive gas atmospheres iecen 60079102. This part of the iec 60079 series applies to users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only, where the. En 6007914, and 17 so as to achieve an acceptable solution. Protection of equipment and transmission systems using optical radiation 1 scope this part of iec 60079 explains the potential ignition hazard from equipment using optical radiation intended for use in explosive gas atmospheres. Iec 60079 17 20 applies to users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only where the hazard may be caused by flammable gases vapours mists dusts fibres or flyings it does not include br other.
The electrotechnical commission standards are the industry standard for hazardous area inspections and are used worldwide by operators, manufacturers and distributors in the oil. October 2015 page 2 in the general framework of implementation of eu directives and. Explosive atmospheres part 17 electrical installations inspection and maintenance. September 9, 2012 download iec 6007910electrical apparatus for explosive gas atmospherespart 10classification of hazardous areas pdf edit delete tags autopost.
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