atex classification

Intrinsic Safety and !he ATEX Directive The ATEX markings are in addition to the standard Zone markings and indicate compliance to the new directives , European requlrements centered around the safety 01 hazardous area eqUlpment that became mandatory on July 1, 2003. AII equipment exported ¡nto European member countries must meet the ATEX hazardous and essential health and salety requirements for acceptance. 94/9JEC I EX = Explosim I I = Mlning industry protection 11 = St.riace Industry Apparatus Group M1 = Present continuously - equipment cannot be de-energized (mining) M2 = Present conti1uously - equipment can be de-energized (mining) 1 = Hazard present continuously 2 = Hazard present 10 to 100 hrslannum 3 Hazard present less than 10 to 100 hrsl!mUm (.,) = Mounted in safe area No Parentheses = Mounted in hazardous area Category Hazardoos Locations Are Grouped According To Their Ignition Properties, TYPICALGAS Acelylene Hydrogen Ethylene Propane Methane' MetalOust Coal Dust Graln DuS! Fibers G=Gas D = Dus! lEC GAS GROUP lIe 118 + H, IIB IIA I NORTH AMERICAN GROUP A 8 C O • E F G MINIIIUM IGNln ON ENERGY 20 20 100 I Mtning apphcatlOn under Ju n sdlctl on 01 MSHA CENELEC & North American Marking (Zone) CI< ss I = GasNapor Cl!ss 11 = Oust Clé;ss 111 = Fiber or fl ying (No group designation) DIv. 1 = Il)'litable mix1ure present oontinuously or i1terrnit1ently DIv. 2 = Ignitable mixture is not norrnally present TYptCALGAS A = Acetylene B = Hydrogen C = EtIlylene D = Propane T1 .. 45Q°C T2 .. 3OQ°C T2 A ,,280"C T2 B ,,26O"C T2 C ,,23O"C T2D s215°C T3 s200°C T3 A .. 18O"C T3 B " 165°C T3 C .. 1SOOC T4 ,,1asoC T4 A s 12O"C T5 " l00"C T6 s85°C elass 1, Division 1, Groups A, B, e, D, T5 Intrinsic Safety and elass 1, Zone 1, A E x d [ia] lIe T5 North American Marking (Oivision) the ATEX Oirective Marking CIlla I = GasNapor CIass 11 = Dust CIass 111 = Fiber Of flyi1g (No group designation) Zone O Ignitable conoentrations of gases or vapors are present conünuousy or lar long periods of time Zone 1 = 1\)'litabIe concentrations 01 gases or vapors are lo exisl under normal operaIing conditions Zone 2 19ltabIe concernIions E = lo CENELEC Staldards A = 10 American Stardards Ex=ExpIosfor1 protection m = Encapsulation (Zone 1) d = Aameproot (Zone 1) e = Increased sáety (Zone 1) ia = Intnnsic safety (Zone O) lID = h1rinsic safeIy dusI (Zone 20) r----1 lb = Intnnsic safeIy (Zone 1) o = 0iI irMIersion (lone 1) q = Powder filing (lone 1) P= Pressunzed and purgad (lone 1) nA = Nonspar1<ilg (Zone 2) [ia] associated liaD] apJB3luS [lb] = providing tIle [nLJ protection [np) I = Mini ng gas mix1ures IIC= GasNapor mix1ure MESG " 0.5 mm, MIC " 0.45 IIB= GasNapor mix1ure MESG " 0.90 mm, 11A= GasNapor mixture MESG > 0.90 mm, TI :s 45O"C T2 ,,3OO"C T3 s2OO"C T4 s 135"C T5 s 100°C T6 s 85°C US (MEC 500), C8nada (cee _,lB) MarIáng of gases or vapors are not likely to occur under normal condrtions and ff they do. only for short periods nC = SparI<ing 8IJIipmenI with protected contact (Zone 2) nR = Resbided bIeafli¡lQ encIoSlJe (Zone 2) MIC - Minimum Ignilion Current MESG - Maximum Experimental Spark Gap nL = Energy IImiled (Zone 2) nP = Pressurized enclosure (Zone 2) Hazardous Area Designation ------' Methods of Protection -------------' A hazardous area is designated as any location in which a combustible material is or may be present In the atmosphere in sufficient concentration to produce an ignitable mixture. The North American method identifies these areas by Class, Division and Group or optionally by Class, Zone and Gas Group whíle the lEC and CENELEC designate these areas by Zone and Group. Inslallation Authority General Ex Pressurization Ex p Oillmmersion Ex o CENELEC lEC & CEC Sec 18 NEC Art 505 CEC Sec 18 NEC Art . 500 6007 :..;;; 9 ... -0 __ ANSIIISA-12.00.01/UL2279 -+_-=--__ _________ __.j EN 60079-2 lEC 60079-2 ISA 12.04.01 1 & 2 NFPA 496 NFPA 496 EN 50015 lEC 60079-6 ANSIIISA-12.26.01/UL2279 Keep the gas away lrom any hot surface and equipment Division/Zones ---------------------' (The likelihood of a hazardous atmosphere being present) Encapsulation Ex m 1 & 2 1 & 2 1 & 2 1 & 2 1 &2 t & 2 EN 60079-18 lEC 60069-18 ANSI/ISA-12.23.01/UL2279 ---- North America Comparisons Ex d EN 60079 -1 lEC 60079-1 ANSI/ISA-12.22.01/UL2279 1 & 2 CSA C22.2 No. 30 UL1203/FM3615 Contain tIle explosion and quench tIle flame CENELECI lEC Standard Powder Filled Ex q EN 50017 lEC 60079-5 ANSIIISA-12.25.01IUL2279 Inereased Salety Ex e EN 60079-7 lEC 60079-7 ANSI /ISA-12. 16 .0 1 /U L2279 No ares, sparks or contacts Ignitable mixture present continuously Oong periods} ZoneO Zoneo (Zane 20 - Dust) Intrinsic Safety Exia Exib Ex n T 0, 1 & 2 1&2 EN 50020 lEC 60079-11 ANSI/ISA-12.02.01/UL2279 1 & 2 CSA C22.2 No. 157 UL913/FM3610 Division 1 Limlt the energy 01 sparks; limit the temperature Ignitable mixture present intermittently Zone 1 Zone1 (Zona 21 - Dustl Noninee,ldive Te chniques T _A , C, L, P, R 2 EN 6007 9-2 lEC 60079-2 ANS I/ISA-12. 12.02 / UL2279 2 CSA C22 .2 No . 213 UL1604/ FM361 1 Ignitable mixture is not normally present Division 2 Zone2 Zone 2 (Zone 22 - Dustl Ex' O Dust Protection Teehniques m Hazardous Location Installation (Refer to Artiele 500 of the National Electrieal Code for further details) Nonincedive Entity Concept (Div. 2) Intrinsically Sale Entity Concept (Div. 1 & 2) Hazardous Area Connecting Cables C calJle Lcabl. Field Instrument v ....... = Max allowable fault voltage l mu; = Maximum allowable fault current el = Internal u nprotected capacitance l, = Internal u nprotected inductance v ..... V OIC Im •• ;z; 1 .., I Associated Apparatus V oc = Maximum open Clrcuit voltage 1 -.; = Maximum short circuit current e. = Maximum allowed capacltance L. = Maximum allowed inductance 20, 21 &22 EN 50281 lEC 61241 . Enclosure Rat i ng Type Protection De scription O Indoor use, general-purpose, protects against general contact and falling dirt. 2 Indoor use, general-purpose, dustprool, protecls against lalling dirt and water. 3 Outdoor use, protects against wl ndblown dust and rain. Remains undamaged by ice lormation. 3R Outdoor use, protects against lalling rain. Remains undamaged by ice formation. The entity concept allows the connection 01 two independently certified pieces 01 equipment. This concept requires entity parameters to be assigned to both the field instrument and the associated apparatus. By comparing the parameters, the salety 01 the system can be verilied. The lield wiring is not ignition capable during a short or open condition of the wiring (normal operation). An intrinsically sale network will continue to limit energy even dunng multiple faull scenarios 01 the associated apparatus while a network installed in accordance with the nonincendive entity concept is not lau lt tolerant. el . l, + l .,.¡,¡.s l . 60pF/ft (unless othorwise known) l ....... = (unless otherwise known) 35 Outdoor use, protects against windblown dust, ra in and sleet. Ice-Iaden mechanisms remain operable. Intr;nsic Safcty System Concept (Div. 1 & 2) In this concept, an intrinsically safe instrument is certilied lor use wilh a specific associated apparalus (íntrinsic salety barrier). This approach simplilies the installation since the entire loop is well delined; however, It does not allow flexibility slnce only the spec ific equipment listed on the control drawing may be used. The resulting network is not igni tion capable (intrinsically safe) during normal and abnorma l (Iault) operation. Nonincedive Equipment Concept (Div. 2 only) Nonincedive equipment is delined as a device that is incapable of causing ignition of a hazardous atmosphere during normal operation; however, it may contain incendive energy. In a typical application, a suitable Division 2 wiring method is nece ssary lo supply power and/or communication to the nonincendive equipment since the energy contained in th is wiring may also be ignition capable . Hazardous Area Fiald Instrumant Hazardous Area Div. 2 Wiring Melhod Field Instrument Associated Apparatus Standard Control Equipment Pepper1+Fuchs and the Process Automation Market 4 Indoor/outdoor use, protects against dust, lalling rain, splashing and hose-directed water. Remains undamaged by ice formation. 4X !nd oc r /o utdoor use, corrosi cn -rcsistant, agaim:;t dust, fa ll ing rain, sp l ashing and ho se- directed water. Rema ins undamaged by ice lormation. 6 Indoor/ outdoor use , protects against water entry during temporary submersion. Remains undamaged by ice lormation. 6P Indoor/outdoor use, protects against water entry during prolonged submersion. Remains undamaged by ice formation. 7 Indoor use hazardous locations . Class 1, Div. 1, Groups A, B, C. or D 9 Indoor use hazardous locations . Class 11 , Div. 1, Groups E, F, or G 12/12K Indoor use protects against entry 01 dust, dirt, and dripping water. Protects against noncorrosive liquids. 13 Indoor use protects against ent ry of dust, dirt, and dripping water and oil. Protects against noncorrosive liquids. Peppert+ Fuchs offers proven induslry expertise t hrough market-based, customer-Iocused produ c ts that provide answers to the toughes1 application problem s. Our target indu stri es are involved with c hemicals , pharmaceuticals , oil & gas, petrochemicals , and other areas including wastewater treatment and power tec hnology. In all industrial areas, Peppert+Fuchs is both a supplier and partner lor end users, control systems manulacturers , syst em integrators and eng ineering contractors . From our expert app li cation analysis and global key account management , to our on-site engíneering of new systems and technical support after the sale, we stand solidly behind every product we build. ( , I I ' . , .,.. I - .- '- . - .. .. - .. : " :", .. ........ !. " .... :. -... . •• , 1:-0- INTRIN51C 5AFETY BARRIERS DIN rail and motherboard solutions lor hazardous locations REMOTE 1/0 SYSTEMS Modular l/O solutions lor hazardous locations HART MULTlPLEXERS Interface products 10r HART applications FIELOBUS INSTALLATION 5YSTEM FieldConnex" PURGE ANO PRESSURIZATION Protect cabinet electronics from hazardous and corrosive atmospheres :"A. ., ......... - - .- . . . \ · 11 \ -'s \.t .,. ,-\ .- ,\ M"fI.· , ,- '. • • j. , I . 1\ li '. - - LEVEL 5ENSING Fullline 01 level sensors and transmitters CORROSION MONITORING On-line transmitter range suitable 10r r eal time monitoring-CorrTran™ VISUALlZATION ANO HMI OPERATION Industrial solutions lor rugged use-Extec™ SYSTEMS ANO SOLUTIONS Custom cabinets and design POWER SUPPLlES Suitable lor mission-critical operation Enclosure Protection IP Rating Protection Against Ingress 01 So lid O No protection against live or moving parts 1 Protection against contact by large surface (i.e ., the hand) 2 Protection againsl contact by fingers or medium sized solid bodies 3 Protection against contact by tools, wires, objects > 2.5 mm or small sol id bodies 4 Protection against contact by tools, wires, objects > 1 mm or small solid bodies 5 Complete protection against con1act. I ngress 01 dust not in harmlul quantities 6 Complete protection against contact Protec1ion against Ingress 01 dust NEMA Rating 1 2 3 3R 3S 4 &4X 6&6P 12 & 12K 13 Protection Against I ngress 01 Liquids O No protection 1 Protection against drops 01 con den sed water (i.e., no harmful ellect) 2 Protection against liquid drops at 15 0 from vertical 3 Protection against rain up to 60° from vertical 4 Protection against splashing from any direclion 5 Protection against waler jets lrom any direction under stated conditions 6 Protection against heavy sea water under stated condítíons 7 Protection against water immersion under stated condltlons 01 pressure and time 8 Protection against indelinite immersion in water under specified pressure lEC Classification tP 10 IP 11 tP 54 IP 14 IP54 IP 56 tP67 IP 52 tP 54 Comparisol1 based on tests per lEC 60 529. Cannot be used to convert lEC classifications to NEMA type numbers For More Information Receive deta iled information on hazardous location protection Irom the world's most trusted and respected name in intrinsic salety. Visit www.plsolutions-info/hazloc and register to receive the most uselul guides you'" ever read on hazardous location protection. The Most Comprehensive Source for Intrinsic 5afety: More than just a catal og , Pepperl+Fuchs' Engineer's Guide IS your delinitive guide lor intrinsic salety. It includes useful inlormation on installing intrinsically sale syste ms, maintenance, applicalions, and luture trends. It also contains a comprehensive glossary on hazardous locati on terms . Fa PEPPERL+FUCHS PROTECTING YOUR PROCESS Subject to modificatlons 0 2006 Pepper1+Fuchs:ll ln c., TWlnsburg, Ohlo ISP 0806 (909925, supercedes 90773n Pri n1ed in U. $.A.

atex classification

Documents

c t3 c

aameproot zone

encapsulation zone

c t5 s

oc t2 c

c t2 b

group designation zone

complete protection