When a Contractor that holds an "R" stamp and normally preforms their own welding, subcontracts out the welding (due to their customer requesting a process that they have no Procedure for or knowledge of, how is it handled from a code stand point?
This is a repair of a Routine Nature...
We had a contractor remove a water wall tube pannel from our boiler.
The process that they used was to sever the membrane with an arc air torch.
In doing so they struck the ajoning tubes leaving gobs of molten material to be ground off.
Our concern is that in the process I an sure that a large...