Thanks for replies guys,even the ones with hints of sarcasm,if I was a qualified electrician I would not be earning a living pushing a wand around
Just to clarify a couple of points-
Electricity to downstairs flat was switched off at fusebox under the stairs and there was also a switch adjacent to the fusebox,it was this switch that led to upstairs,I know now that it was in the on position when I arrived,but of course it was switched off when I left.I do not know if it was fed directly from the fusebox or from the mains supply before the fusebox,but in my opinion it should not have been there if it was to feed another property,and in any event should have been clearly marked.I completed the job at about 3pm and the upstairs tenant had already left for work (shift worker) so did not realise there was no electricity until he got home about 10-30 pm,thinking it was a power cut he called the electricity supplier and it was they who advised him it was fed from downstairs.
I am assuming the feed was to a seperate meter in his upstairs flat,but don't know at this stage.It was not until sat morn that they got hold of the landlord to switch the power back on,so it would have been off for about 18 hrs.
Back to the subject of having to switch electricity on or off,at least those of us that work within the rental sector will know that it is very common to have to turn on elec/gas/water in vacant properties,as well as having to load elect/gas cards at times,and no I'm not a qualified plumber or gas fitter either. :
The agent is away until tuesday so will know more then.
John