G
Geoffsd
Hello everyone,
First inspection before fitting external socket.
House owner previously been told electrics are a bit of a mess.
Anyway, opened socket outlet from which I intend to spur to outside.
Ring Final tests: B32mcb open of course.
Continuity measures fine - 0.20,0.20,0.33.
Insulation Resistance test at 250V in case something still connected - L&N to E 0.00MΩ.
Why no tripping?
Do continuity - L to E 10Ω - (yes 10Ω) on both legs of the Ring.
To CU which is modern but several years old and looks like a split load from outside.
Take off cover and see RCD not used ??? - all circuits in one Neutral bar.
That could be why no tripping.
Anyway, disconnect and separate Line conductors.
Continuity still 10Ω L to E on BOTH conductors even though still also separated at socket so must assume the ring is bridged. adding to fun.
Further investigation reveals the circuit meanders all over the house including the boiler, one bedroom, garage door motor and the lights in an extension room
Before I return and start to take the circuit apart does anyone have an idea what may be causing this 10Ω reading and what may be the best place to start - garage motor, for instance. I don't have much experience with motors.
Thanks
First inspection before fitting external socket.
House owner previously been told electrics are a bit of a mess.
Anyway, opened socket outlet from which I intend to spur to outside.
Ring Final tests: B32mcb open of course.
Continuity measures fine - 0.20,0.20,0.33.
Insulation Resistance test at 250V in case something still connected - L&N to E 0.00MΩ.
Why no tripping?
Do continuity - L to E 10Ω - (yes 10Ω) on both legs of the Ring.
To CU which is modern but several years old and looks like a split load from outside.
Take off cover and see RCD not used ??? - all circuits in one Neutral bar.
That could be why no tripping.
Anyway, disconnect and separate Line conductors.
Continuity still 10Ω L to E on BOTH conductors even though still also separated at socket so must assume the ring is bridged. adding to fun.
Further investigation reveals the circuit meanders all over the house including the boiler, one bedroom, garage door motor and the lights in an extension room
Before I return and start to take the circuit apart does anyone have an idea what may be causing this 10Ω reading and what may be the best place to start - garage motor, for instance. I don't have much experience with motors.
Thanks
