- Reaction score
- 29
Today I got 0.11 Mohm L-N>E at 250v then the same at 500v on a 6amp lighting circuit wired in the 70s which is the only lighting circuit for the house. Customer did not want me to remove the lamps. I forgot to ask or see a bell transformer or aerial booster. No faults known to the customer. MCB not tripping. No RCD. I broke the circuit down and tested L-N at 250v dead short 0.0 Then L-E N-E at 250v and 0.11 for both... I keep telling myself it must be something connected... Or is it a fault. Indicated further investigation on the MWC. Spending tonight racking over what it could be. Also how do you guys explain this to a customer without waffling the entire bs7671 to them whilst using a new piece of cable to explain cable deterioration and the benefit of having an RCD with out them thinking that your having them on.