voltage at light fitting switch off

[BES]

Evening people
At it says getting about 90v at
fitting between l-n & l-e with sw off What could be causing this all tests ok . Ir around 250 l-e & 300 l-n .
Ta

 

[truckster]

No truckster havent . How would that tell you.
Ta

A Loz voltage tester puts a low impedance as opposed to the nomal high impedance across the contact points which allows the induced current to drain so you get a more accurate measurement. I had a leaflet on it somewhere but can't find it. I think I got it from the Fluke website so you could have a look there.

 

[bob22]

Agree with truckster, are the switch wire and the feed in the same cable. To understand it a bit better, get a couple of metres of twin and earth connect the live and earth in a plug top leave the blue disconnected out of the plug and terminate the wires at the other end in block connectors, when the brown is live there will be a induced voltage on the floating wire(blue) it can't go anywhere until there is a bulb or resistor for it to flow to 0volts.

 

[BES]

Cheers guys understand now thanks

 

[BillyTheSparks]

Hi Bes how did you get on with this problem??

I have a very similar problem at one of my jobs, just wondered if your experiance might help me out

many thanks

Billy