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Reference, Questions and Help => Nuke Q&A => Topic started by: stirfry on Feb 17, 2016, 02:26

Title: PWR Reactor Refueling Cavity
Post by: stirfry on Feb 17, 2016, 02:26

Do you quantify your cavity as a Confined Space. And if so, if welding is being performed does that make your cavity a Permit Confined Space.

Gary

Title: Re: PWR Reactor Refueling Cavity
Post by: Rerun on Feb 20, 2016, 09:50

Technically it meets the requirement for a confined space then downgraded to non permit required

Title: Re: PWR Reactor Refueling Cavity
Post by: Rennhack on Feb 20, 2016, 11:16

Quote from: stirfry on Feb 17, 2016, 02:26

Do you quantify your cavity as a Confined Space. And if so, if welding is being performed does that make your cavity a Permit Confined Space.

Gary

As I mentioned to you earlier...

Quote

Technically it meets the requirement for a confined space then downgraded to non permit required

If welding is performed, then you have to determine if it will cause the status to change.  Are they pumping heavier than air gasses such as argon into the cavity when they weld?  How big is it (the cavity) [its big] how much argon? How much ventilation do you have?

Is the guy that used to be safety at your site still available to talk to, to see how he used to handle it?

Title: Re: PWR Reactor Refueling Cavity
Post by: Rerun on Feb 21, 2016, 11:50

Welding in and of itself doesnt