upstairs/downstairs lighting?

[j0n66]

hi - my father-in-law is having a problem with his daughters house, all the houses Ive ever lived in have had 2 separate lighting circuits.... an upstairs and downstairs.. with 2 separate fuses/circuit breakers.

recently a light bulb went in a room downstairs, the light bulb was changed but then no lights in the house worked - on looked at the fuse box there seemed to be only one breaker for "lights" and this had tripped - un-tripping it gave back lighting for the upstairs only and downstairs is still not working? can there be another circuit breaker/fuse further on in the system or is this totally inconcevable?

thanks JON

 

[dr_technical]

Did you try changing the light bulb? In older houses and industrial installations, sometimes lighting circuits are wired in series which means you must have all the lamps working in order to complete the circuit, just like a strings of christmas lights.

 

[breezer]

Sorry all house wiring lights are in paralell so this can not be the case.

obviously the fuse is ok, since after the first light went and the upstairs lights went out too, now the fuse has ben replaced the upstairs lights are back on.

I would be inclined to turn the mains off and take apart the the ceiling rose wher the lamp went in the first place and start there. It sounds like a wire has burnt out / come loose