Well if the DNO bite back, i hope your client has the wherefore all to take on a public utility company!! I would have been more inclined to have gone to the ombudsman organisation, (or whatever it's called these days) in the first instance....
Reply to Upgrade supply cable for 3 phase. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc