** 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