This part of iec 60079 specifies the general requirements for construction, testing and marking of electrical equipment and ex components intended for use in explosive atmospheres. Pdf this paper debates the requirements of some current 2017 iec standards 600790, 600791, 600796, 600797, 6007914 and. Flameproof enclosures, of iec technical committee 31. Iec 600790 general requirements iec 600791 flameproof enclosure ex d. Electrical resistance trace heating general and testing requirements. Dust explosion protection iecen 600790 and iecen 6007931. Low voltage motors motor guide motor guide february 2014. These standards are dedicated to the highly specialised fields associated with the use of equipment, termed ex equipment, and installations in areas where a potential may exist of fire or explosion.
Equipment protection by increased safety e iec 60079 7. Iec 60079 0 general requirements iec 60079 1 flameproof enclosure ex d. Filling of bulk material is preferably performed with a closed and or automated system, typically under inert gas atmosphere. International standard iec 60079 1 has been prepared by subcommittee 31a. Ul 600790 standard for explosive atmospheres part 0. Where a requirement of this standard conflicts with a requirement of iec 60079 0, the requirements of this standard shall take precedence. Aspects in the ex equipment design process that will reduce. Iec 60079 0 explosive atmospheres part 0 equipment general requirements. Guide to equipment certification requirements typical north american marking division scheme zone scheme class i zone 0 aex ia iic t4 ga hazard class protection concept.
The high speed range covers standard motors in the 3600 5100 rpm speed area. This part of iec 60079 document specifies the general requirements for construction, testing and marking of ex equipment and ex components intended for use in explosive atmospheres. Electrical equipment complying with this standard is intended for use in hazardous areas in which explosive gas atmospheres, caused by mixtures of air and gases, vapours. Or download the pdf of the directive or of the official journal for free. Ii rotating electrical machines and having a peripheral speed of below. This first revision has been undertaken to align it with iec 60079 0.
Marking according to en iec 60079 0 2007, including en 61241 0. Ex protection concepts electrical electrical symbol typical iec epl typical zones iec standard basic concept of protection increased safety e gb 1,2 iec 60079. Iec 60079 0 2004 electrical apparatus for explosive gas atmospheres part 0 general requirements from the international standard library true friend. Motor guide february 2014 low voltage motors motor guide. Iec standards often have multiple subpart documents. Starting performance of single speed threephase cage induction motors. The iec shall not be held responsible for identifying any or all such patent rights. Electrostatic hazards and ex equipment application of iec. Classification of areasexplosive gas atmospheres iec. Where a requirement of this standard conflicts with a requirement of iec 60079 0, the requirement of this standard takes precedence.
Equipment protection by flameproof enclosures d please note that this isa standard is an iec. The iecex system is based on the use of international standards, such as iec standards. A significant new general requirements standard has been published as a european standard for atex and iec 60079 0. Iec 60079101 assumes an approximately similar classification for gases and vapours. This part of iec 60079 specifies the general requirements for construction, testing and marking of ex equipment and ex components intended for use in explosive atmospheres.
The requirements for intrinsically safe systems are provided in iec 60079 25. The numbers of older iec standards were converted in 1997 by adding 60000. Explosion protected motors for use in hazardous areas 2 protection concepts type of protection symbol typical iec epl typical zones iec standard basic concept of protection optical radiation op pr op sh op is gb ga ga 1,2 0,1,2 0,1,2 iec 60079 28 iec 60079 28 iec 60079 28 inherently safe protected by shutdown increased safety. All bsi british standards available online in electronic and print formats. It is the comprehensive range of protective measures applied to an electrical apparatus to prevent possible ignition.
Publication responding to an urgent market need, to speed up the standardization in areas of rapidly evolving technologies. 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 enclosures of electric motors are designed to be flameproof according to en 60079 0 iec 60079 1. This part of iec 60034 specifies efficiency classes for single speed electric motors that are rated according to iec 600341 or iec 600790, are rated for operation. Equipment protection by flameproof enclosures d iec on. It is the second edition of isa 600790 superceding ansiisa12. It is the second edition of isa 60079 0 superceding ansiisa12. It is a function of the substance and of the temperature 3. For example, iec standardizes the frame size of motors. This standard supplements and modifies the general requirements of iec 60079 0, except as indicated in table 1. The standard atmospheric conditions relating to the explosion characteristics of the atmosphere under which it may be assumed that ex equipment can be operated are. Explosion protected motors for use in hazardous areas 2 protection concepts type of protection symbol typical iec epl typical zones iec standard basic concept of protection optical radiation op pr op sh op is gb ga ga 1,2 0,1,2 0,1,2 iec 6007928 iec 6007928 iec 6007928 inherently safe protected by shutdown increased safety. The iec standard has been varied as indicated to take account of australiannew zealand conditions as set out below. International standard iec 600790 has been prepared by technical committee 31.
Pdf new requirements for electrical installations in hazardous. The document is a modification of the iec document and includes u. It is intended that this interpretation will be introduced in iec 60079 0 edition 7 and therefore an interpretation sheet will not be required for this or future editions. Efficiency classes of line operated ac motors ie code iec 60034301. Pdf iec 60079 0 explosive atmospheres part 0 equipment. This document is a modification of the iec document and includes us deviations. Iec 600790, electrical apparatus for explosive gas atmospheres. Flameproof enclosures d can actually get and forgive anal. This standard was first issued in 2007 and was identical to iec 60079 0.
As a manufacturer of electrical equipment suitable for use in explosive and hazardous areas you must design your products to comply with certain standards. Limitare limpiego di questi apparecchi alla funzione dinterruttore di posizione. A reference for installations in atex dust explosive atmospheres. Flameproof enclosures d method of test for ascertainment of maximum experimental safe gap. Note 1 charge build up during the filling of bulk material from metal or plastic drums or from. International iec standard 60079 17 third edition 200207 electrical apparatus for explosive gas atmospheres part 17. Astm standards annual book of astm standards bs standards csn standards din standards iec standards iso standards une standards vda automotive standards cqi qs 9000 eurocodes sets of en standards quality management standards iso 9001 environmental management systems iso 14001. Zone 21 22 eniec 600790 zone area 21 22 eniec 60079. An overview of iec ts 60079321 electrostatics guidance. Motors and drives in potentially explosive atmospheres. Iec ceneleccsa standard 60079 0 typical marking of electrical equipment for use in explosive dust atmospheres euatexiecex. The terminal boxes could also be in flameproof design or also in increased safety design according to en 60079 7 iec 60079 7. International iec standard 6007917 third edition 200207 electrical apparatus for explosive gas atmospheres part 17.
Iec 60079 0 standard relates to classifying electrical equipment stored in hazardous locations where fire or explosion hazards. A selection of certified products, conforming to the directive. List of international electrotechnical commission standards. Cenelec en iec 600790 explosive atmospheres part 0. Electrical installations design, selection and erection, and corrigendum 1. Keep up to date with new publication releases and announcements with our free iec just published email newsletter. Download iec 60079 1 electrical apparatus for explosive gas. The significant changes with respect to the previous edition are. Iec 60079 0 iec 60079 1 iec 60079 11 explosive explosive atmospheres package save up to 40% off iec 60079 0 iec 60079 1 iec 60079 11 explosive atmospheres package is applicable to electrical equipment located inside and outside explosive atmospheres and allows for the construction and testing of safe apparatus. The equipment consists of a series of ispkxxi, ispkxxuc and ispkxxiuc sensors with a 1281 or 1281.
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 know and speak the laws that govern them. Find the most uptodate version of en iec 60079 0 at engineering360. We do the download iec 60079 1 electrical apparatus for to pulverize them or make the. The significant changes with respect to is iec 60079 0. It is the fifth edition of isa 60079 11 and the fifth edition of ul 60079 11. Global reference guide on the marking of electrical. Bs en 600790 sets out the general electrical safety requirements for the construction, testing and marking of electrical equipment and components that are used in explosive atmospheres. Requirements for explosive dust atmospheres transferred from iec 61241 0, the marking group ii alone has been replaced by iia, iib, or iic as many of the enclosure requirements are now aligned with a specific subgroup, dust groups defined as group iiia, iiib and iiic.
Date isa 60079 11 ul 60079 11 7 general notes this is the common isa and ul standard for explosive atmospheres part 11. Customers who have agreed on their computer from unmz service csn onlinefor electronic access to the full texts of standards in pdf version for companies or individuals may open directly quoted csn here. Tvts standard iec metric motor is designed and certified to atex protection class 222 3g3d and ingress protection ip55 for our customers safety and peace of mind. This part of iec 60079 specifies requirements for the construction, testing and marking for group ii electrical equipment with type of protection n which includes. For hazardous locations and applications where an even higher degree of explosion proof design and certification is required we now offer the tnsa for atex class 121 2d2g. This part of iec 60079 document specifies the general requirements for construction, testing and marking of ex equipment and ex components. Service temp clarification included that da and db equipment needs dust layer applied if applicable for service temp determination.
Protection level epl according with en iec 600790 ff. Iec ts 6003425 rotating electrical machines part 25. International electrotechnical commission iec, underwriters laboratories ul and the international society of automation isa follow a common standard and contain identical requirements to the iec 60079 0 standard. This standard establishes a set of limit efficiency values based on frequency, number of poles and motor power. En 60079 1, en 60079 7 iec 60079 0, iec 60079 1 standards. This fourth edition cancels and replaces the third edition, published in 1998, and constitutes a full technical revision. Isa600790 and ul 600790 contain identical requirements, and identical. Selection of energyefficient motors including variable speed applications application guide. Electrical types of protection for explosive atmospheres due to.