I'm trying to get a better handle on safety standards, but the more I read the more lost I feel.
Being a US machine standard, you would think that NFPA 79 would give some clear direction, but it just makes some references to ANSI B11, ISO 12100, IEC 62061, ISO 13849, but as I understand it they are informational and not actually required as part of NFPA 79.
There seems to be several risk assessments. There's IEC 61508 which then leads you down the SIL rating path or ISO 13849 which takes you down the PL path. Then there's ANSI B11. How do you know which one should be used?
Any help or guidance would be appreciated.
Being a US machine standard, you would think that NFPA 79 would give some clear direction, but it just makes some references to ANSI B11, ISO 12100, IEC 62061, ISO 13849, but as I understand it they are informational and not actually required as part of NFPA 79.
There seems to be several risk assessments. There's IEC 61508 which then leads you down the SIL rating path or ISO 13849 which takes you down the PL path. Then there's ANSI B11. How do you know which one should be used?
Any help or guidance would be appreciated.