Finally,not phased, I have found an outlet to purchase my much awaited SPD,s (surge protection devices) and AFFD,s (arc fault detection devices),namely via SCREWFIX !In fairness the only supplier I know who have openly approached the supply of such. I priced up a standard 10 way board,to include 10 combined AFFD,S/RCBO,S,with of course an SPD,the princely sum total of £2207.89 !!! Bear in mind this does incl.vat but NO labour costs. The GB electrical world has finally gone mad !!!!!!!!!!