Planning Terms
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Tie-ins : Connecting new with the existing. It can be for Piping or Electrical/ Instrument. If it is Pipiing Tie in then in operating plants you may have either flanged /welded connections which needs to be connected to the new pipe line . Normally tie-in can be done during plant shut down period. If it is doen on live line then it is called Hot tap otherwise it is called as cold tap.
Hot change over : connections in live plant (mostly electrical or instruments)
Hook ups: It ...
What meaning TMM & TIR for the offshore projects
Dear Francis,
"Hot" usually is used for operational areas.
It depends on your industry, the general meaning is self explanatory, but the exact meaning you need to get from the "Process" guys.
With kind regards,
Samer
Thanks David,
Info you provided was really helpful
Cheers
Ill have a go Francis - the trouble is the definition usually depends on the context in which the phrase is being used.
Tie-in: Something that is related or connected to another; an association or connection between things; the act or method of joining two disparate systems.
Hot changeover: The switch from one system to another with minimum downtime, preferably none. If possible the new system is started before the old system is decommissioned and the two systems run in parallel until the new system is proved.
Hook up: Generally to connect a mechanism and a source of power.