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Related Topic Tags
calculation formulas, definitions, iec 61508 - functional safety of electronic controls, safety integrity level (sil), training (general), safety (general)
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  #1  
Old 23rd September 2011, 04:32 AM
ISO90012000 ISO90012000 is offline
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Please Help! SIL (Safety Integrity Level) calculation per IEC 61508.

Hi for all the people.

I've a trouble.
I need to calculate de SIL for a mechanical equipment (Ball Valve) in the petroleum sector.

Can Somebody help me (SIL, PFD, MTBF, SFF, etc).

I've know that Exida does training courses CFSE / CFSP.
Somebody has an opinon about this trainnig course?
Somebody knows if I do this training course I'll be able for my target?.

Tanks in advance.

Regards.

ISO90012000.

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  #2  
Old 23rd September 2011, 06:26 AM
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Stijloor Stijloor is offline
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Re: Sil calculation iec 61508.

For the benefit of our Members; what is the meaning of:
  • SIL
  • PFD
  • MTBF
  • SFF
  • CFSE
  • CFSP
Thank you!

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  #3  
Old 23rd September 2011, 07:00 AM
w_grunfeld w_grunfeld is offline
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Re: Sil calculation iec 61508.

For SIL (Safety Integrity Level ) calculation go to:
http://www.automation.siemens.com/mc...l/Pages/Defaul
For MTBF see: http://http://www.navsea.navy.mil/ns.../handbook.aspx

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Thanks to w_grunfeld for your informative Post and/or Attachment!
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Old 23rd September 2011, 09:00 AM
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Re: SIL (Safety Integrity Level) calculation per IEC 61508.

AlsoWikipedia reference-link IEC 61508
Thanks to harry for your informative Post and/or Attachment!
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Old 24th September 2011, 11:54 AM
w_grunfeld w_grunfeld is offline
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Re: SIL (Safety Integrity Level) calculation per IEC 61508.

Quote:
In Reply to Parent Post by harry View Post

Harry,
IEC 61508 doesn't provide any calculation method for any particular component.
The Siemens link I provided leads eventually to a free online SIL calculator.

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Old 25th September 2011, 06:10 AM
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Re: SIL (Safety Integrity Level) calculation per IEC 61508.

HI COLLEAGUES:

I'VE BEEN TAKING A GOOD LOOK & THIS LINK IS A GREAT HELPNESS.

http://www.navsea.navy.mil/nswc/card.../handbook.aspx


BUT IT DOESN'T RESPONSE FROM MY TROUBLE.
I'D LIKE FIND AN CLEAR FULL PROCEDURE FOR SIL CALCULATIONS
(NO ONLY THE MTBF).

ALSO I MUST CALCULATE THESE: PFD, SFF, & SIL.

CAN I'VE AN SIL CFSE / CFSP EXPERT OR SIMILAR QUALIFICATION BESIDE ME?.

TANKS FOR THE CURRENT HELPNESS.

AS.
  #7  
Old 25th September 2011, 08:02 AM
harry harry is offline
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Re: SIL (Safety Integrity Level) calculation per IEC 61508.

Quote:
In Reply to Parent Post by w_grunfeld View Post

Harry,
IEC 61508 doesn't provide any calculation method for any particular component. .............
I did not imply it. The original poster asked some other questions apart from SIL calculation (which you had taken care of) and I thought the link and links within it can lead him somewhere.
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