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ATEX certificationIECEx certificationIEC 61508 certificationQuality system approvalAssistance with DSEAR (ATEX User Directive) Implementation
Training & Technical AdviceIECEx Service Facility CertificationTechnical file storageTesting
Baseefa Services
Aim: One single certificate for anyhazardous area product recognised andaccepted throughout the world.
Already accepted in many countries.Alternatively a single test report (ExTR)can be sent to any member certificationbody (ExCB) to issue locally acceptedcertification.
Currently only electrical equipment to IECStandards (but IEC Standards for non-electricalequipment are being developed).
ExCB issues an ExTR (covering theproduct type) and a quality assessmentreport (QAR) (covering the relatedproduction facility)
Certificates of conformity created directlyon the IECEx website, fully visible for thewhole world to read and check status.
ExCB maintains the status of certificatebased on the outcome of further QARs, aminimum of 2 audit visits in a 3 year period.
Putting IECEx and ATEX together
IEC 61508 - Safety Systems
IEC/EN 61508 is the international standard for electrical, electronic andprogrammable electronic safety related systems. It sets out the requirementsfor ensuring that systems are designed, implemented, operated andmaintained to provide the required safety integrity level (SIL). Four SILs aredefined according to the risks involved in the system application, with SIL4being used to protect against the highest risks.
IEC 61508 is becoming increasingly relevant in the assessment of ATEXSafety Related Devices.
The standard is in seven parts:
IEC 61508-1, General requirementsIEC 61508-2, Requirements for E/E/PE safety-related systemsIEC 61508-3, Software requirementsIEC 61508-4, Definitions and abbreviationsIEC 61508-5, Examples and methods for the determination of safety integrity levelsIEC 61508-6, Guidelines on the application of IEC 61508-2 and IEC 61508-3IEC 61508-7, Overview of techniques and measures
Gas GroupsGas Representative
Group Test GasI Methane
(mining only)IIA PropaneIIB EthyleneIIC Hydrogen
Gases are classified according to theignitability of gas-air mixture.Refer to IEC/EN 60079-20 for classificationof common gases and vapours.
Manufacturer’s Nameand Address
Electrical Parameters
Product Identification
Serial No. and Yearof Manufacture
ATEX Notified BodyIdentification No.
Ex de IIC T4 GbEx tb IIIC T135ºC T250 180ºC Db IP66
ABC EngineeringBuxton, SK17 9RZ, UK
Type XYZ Solenoid2008 s/n 1234
II 2GD
IECEx BAS08.0001X
Baseefa08ATEX0001X
Gas Group
Protection Concept
Temperature Class
Ingress Protection
ATEX Coding
IECEx Certificate No.
ATEX Certificate No.
Electrical Protection ConceptsStandard IEC/EN Code Protection ZoneGas Dust Gas Dust Concept Gas Dust
GeneralRequirements
60079-1 Ex d Flameproof 1Ex ta 20
61241-1 Ex tb Enclosure 21Ex tc 22
Ex pxb 1 60079-2 61241-2 Ex pyb Ex p Pressurised 1 21/22
Ex pzc 2 60079-5 Ex q Powder Filled 1 60079-6 Ex o Oil Filled 1 60079-7 Ex e Increased Safety 1 Ex ia Ex ia 0 20 60079-11 61241-11 Ex ib Ex ib Intrinsic Safety 1 21
Ex ic Ex ic 2 22 Ex nA Non-sparking
Ex nL Energy limited 60079-15 Ex nR Restricted breathing 2
Ex nC Enclosed breakEx ma Ex ma 0 20
60079-18** Ex mb Ex mb Encapsulation 1 21Ex mc Ex mc 2 22
Temperature ClassT Class Maximum Surface
TemperatureT1 450°CT2 300°CT3 200°CT4 135°CT5 100°CT6 85°C
Standards
EN13463-1
EN13463-2
EN13463-3
EN13463-5
EN13463-6
EN13463-7
EN13463-8
Concept
generalrequirements
flow restriction
flameproof
constructionalsafety
control ofignitionsources
pressurisation
liquidimmersion
Code
fr
d
c
b
p
k
Zone
2221
211
21
121
121
121
Mechanical certification isbased on a risk assessmentapproach.
Category 3 equipment must be safe foruse in normal operation.Category 2 equipment must be safe foruse in normal operation and expectedmalfunctionCategory 1 equipment must be safe foruse in normal operation, expected andrare malfunction.
Potential ignition sources identified inthe risk assessment are made safe byapplying one or more of the concepts.The number of ‘*’ in the table belowindicate the number of protectionconcepts which need to be applied.
cat 3 cat 2 cat1
* * **
* **
*
normaloperationexpectedmalfunctionraremalfunction
Rockhead Business Park,Staden Lane,Buxton, SK17 9RZtel. +44 (0)1298 766600fax. +44 (0)1298 766601e-mail [email protected]
ATEX Coding II 2 GD
EUExplosiveatmospheresymbol
Equipmentgroup
I - mining
II - non-mining
(*) = in presence of explosive atmosphere
Equipmentcategory
M1 - energisedM2 - de-energised (*)
1 - very high protection2 - high protection3 - normal protection
Gas Dust0 20
1 212 22
Technically identical standards for electricalequipment since 2006.
For single standards, a single set of testsand assessments can support both IECExand ATEX.
An ATEX EC-Type Examination Certificatecan be based on an IECEx ExTR but ATEXdocumentation does not necessarilysupport an IECEx certificate.
The technical requirements of amanufacturer’s QA system are effectivelythe same, both are based on EN13980 andan IECEx QAR can support the issue of anATEX QAN.
Dust Group
Maximum ExternalSurface Temperature
Maximum ExternalSurface Temperatureunder 250mm of dust
Equipment ProtectionLevels
EquipmentProtection LevelEquipmentprotection Zone
levelGa 0Gb 1Gc 2Da 20Db 21Dc 22Ma energisedMb De-energised*
Dust GroupsDust
Group
IIIA Combustible flyings
IIIB Non-conductive dust
IIIC Conductive dust
Ambient Range-20°C to 40°C unlessstated on label
60079-0*
Ingress Protection (IP)Hazardous area equipment typically requiresa minimum IP rating of IP54 but may beassessed and tested to the higher ratings below:
DUSTIP 5x - Dust protectedIP 6x - Dust tightWATERProtected against:IP x4 - splashing waterIP x5 - water jetsIP x6 - powered water jetsIP x7 - temporary immersionIP x8 - continuous immersion
See IEC/EN 60529 for full definition ofIP ratings
Mechanical Protection Concepts
240V ac5A
1180
www.baseefa.com
For the World
ATEX
IECEx ATEX
For Europe
A common approach to lifting barriers totrade within the European Economic Area(EEA).
The Directive becomes law onimplementation in each member countryand compliance is mandatory within the EEA.
Applicable to non-electrical equipment andprotective systems as well as electricalequipment.
Certification from a Notified Body isMandatory for cat. 1 and M1 equipment,protective systems and cat. 2 and M2electrical equipment. Otherwise self-declaration of compliance is permitted.
An EC-Type Examination Certificate andQuality Assessment Notification (QAN) areissued by a Notified Body.
The manufacturer - alone - is responsiblefor the Declaration of Conformity whichmust accompany every product which bearsthe European Marking.
ConformityAssessment
ProductCertification
P11.Issue 5, Feb. 2008
*Recently published standard combining gas and dust requirements for the first time.**Soon to be published with combined gas and dust requirements.
G=gas, D=dust, M=mining*in presence of explosive atmosphere
Tamb-30ºC to + 50ºC