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Discuss Strange things at callout in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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Was at a callout today kettle plugged into cooker control switch was not working and neither was the cooker.Unplugged the kettle and put my megger in and im getting 248v.Disconnected the cooker and getting the same at the outlet.Changed both the switch and outlet and rcbo however still the kettle or cooker does not work.Tried other appliances in the socket too and they dont work either yet still getting 248v .

Any thoughts?
 
Was at a callout today kettle plugged into cooker control switch was not working and neither was the cooker.Unplugged the kettle and put my megger in and im getting 248v.Disconnected the cooker and getting the same at the outlet.Changed both the switch and outlet and rcbo however still the kettle or cooker does not work.Tried other appliances in the socket too and they dont work either yet still getting 248v
what you put in the first post ,we are not mind readers you know .
 
High resistance joint on the L (or N). Simple application of Ohm's Law. If you're not pulling any current (I imagine your megger has a high input impedance) then the voltage drop over even a largish resistance will be low, and you will measure a high voltage. Whereas anything pulling a reasonable amount of current (with a low resistance), the majority of the voltage will drop across your high resistance joint.

Hence Handyspark's question, I guess... :)
 
Thanks happysteve i looked for a joint but couldnt see any.

It might be under the floor or in the wall tho so ill prob end up rewiring it.

Or it might be in the service head, meter, isolator if fitted, a loose henley block connection.

I would put the system under some load and check the voltages all the way through the system. That will help point you in the right direction.
 

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