The Permit to Work — Why the Form Is Not the Control
Read this first. This note is awareness and toolbox-talk support — it is not training-of-record. Nothing here authorises any work, replaces your site permit-to-work procedure, or substitutes for an appointed issuing authority and a documented isolation. Getting a piping lesson wrong over-designs a support. Getting this one wrong has a different consequence class.
Piper Alpha, in the North Sea. Earlier that day, condensate injection pump A was shut down for maintenance and its pressure safety valve was removed; a blind flange was fitted where the valve had been. The work could not be finished, so a permit was suspended and…
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