Override 2 : The temporary bypass of a safety device, to allow certain work to proceed without causing an unnecessary process shutdown or fire alarm e.g fire detector overridden during welding operation
International Association of Oil & Gas Producers OGP and International Association of Geophysical Contractors, Guidelines on Permit to Work (P.T.W.) Systems (Report No. 6.29/189 Jan 1993), London, UK 1999. http://www.ogp.org.uk/pubs/189.pdf, (Hlth, Sfty and Envir Mgt Sys - Brit) {772}