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Why did I get 50v when I turned the fuse-board off?

Charles Newey

Even pulled the fuse out the kmf but still got 50v between earth and neutral. When i energised the fuseboard back up the voltage went. Had a high ZE. And a high PFC. 
however the RCD wouldn’t operate. I have noticed 15/20v’s at multiple different properties in the last 6 months but today. I felt the volts when changing a socket. Do we need to start disconnecting all cables before we change a socket or light etc. does there need to have more earth spikes fitted on property’s. No engineer should get a shock it’s they turn off the mains. 

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    Double pole MCB or RCBO in the CU would probably be helpful as both the the L and N are disconnected.  HOWEVER there could be a rise in potential on the E due to fault/s or PE/FE (Functional Earth) due to electronic in the instalation.  A lot of electronic equipment intentionally leak to Earth to function correctly.  

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    Double pole MCB or RCBO in the CU would probably be helpful as both the the L and N are disconnected.  HOWEVER there could be a rise in potential on the E due to fault/s or PE/FE (Functional Earth) due to electronic in the instalation.  A lot of electronic equipment intentionally leak to Earth to function correctly.  

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