iec 61508 - safety systems - gunneman...
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** 4 D
igniatability of gas-air mixture.
common gases and vapours.
IEC/EN 61508 is the international standard for electrical, electronic and programmable electronic safety related systems. It sets out the requirements for ensuring that systems are designed, implemented, operated and maintained to provide the required safety integrity level (SIL). Four SILs are
being used to protect against the highest risks.
IEC 61508 is the base standard for EN 50495 Safety Devices for ATEX.
The standard is in seven parts:
IEC 61508-1, IEC 61508-2, IEC 61508-3, IEC 61508-4, IEC 61508-5,
IEC 61508-6,IEC 61508-7,
General requirementsRequirements for E/E/PE safety-related systemsSoftware requirements
Examples and methods for the determination of safety integrity levelsGuidelines on the application of IEC 61508-2 and IEC 61508-3Overview of techniques and measures
ATEX & IECEx certification Training & Technical Advice
IECEx Certificate of Personnel Competance IECEx Service Facility Certification
IEC 61508 certification Technical file storage
Quality system approval Testing
Assistance with DSEAR (ATEX User Directive) Implementation
P11.Issue 10, Aug 2013
The technical requirement of a manufacturer’s QA system are effectively the same, both are based on EN13980 (ISO/IEC 80079-34 from 2011) and an IECEx QAR can support the issue of an ATEX QAN.
Technically identical standards for electrical equipment since 2006.
For single standards, a single set of tests and assessments can support both IECEx and ATEX.
can be based on an IECEx ExTR but ATEX documentation does not necessarily
ChalmitGlasgow, G52 9AP
Type XYZ Solenoid2008 s/n 1234
II 2GD 1180
IECEx BAS10.1111X
Baseefa10ATEX1111X
Ex de IIC T4 GbEx tb IIIC T135˚C T250 180˚C Db IP66
Tamb-30˚C to +50˚C
240V ac5A
IEC 61508 - Safety Systems
www.gunneman.nl
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P011 - Baseefa Wallchart Iss10 0813 - Chalmit_Gunneman.pdf 10/9/13 10:39:43
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