CEI EN 50629/A1 PDF

After the last item of the bulleted list “- large power transformers which are like for like replacements in the same physical location/installation for existing large power transformers, where this replacement cannot be achieved without entailing disproportionate costs associated to their transportation and/or installation.”, 

“In case one of the last two exclusions is claimed, this should be documented at the signature of the contract with a declaration made by the customer.”.