Not that I wish to justify my reasoning to the unreasonable, but for the consideration and edification of others :wink_smile:, A sample has been carried out on the existing accessories during an E.I.C.R. by myself, as an approved contractor with the NICEIC :wink_smile:, these were found to be acceptable. It would be unprofessional of me to ignore the existing environmental conditions when replacing equipment .......... when I have no control of the maintenance, nor the design of other equipment in the existing premises! :wink_smile: If a customer chooses not to uprate an installation, that is acceptable in my view but then the customer carries the risk ........... not my professional indemnity! In addition to contamination, this subject fuse board is one which has asbestos arc quench pads, and is consequently .......... Code 2! :wink_smile: :wink_smile: