S
shocked
Hi all
this may help as it took me a little time to find
when testing an existing ring main i found it had a broken Rn ,so i took the sockets off and tested between them and found that the MFI electrician a couple of years earlier had connected one Rn with the switched load side of a spur fuse so when the switch was on Rn loop ok when the switch was off no Rn loop.
thought it may make easier for some of you next time your testing, switch on/off sw fused spurs
john
this may help as it took me a little time to find
when testing an existing ring main i found it had a broken Rn ,so i took the sockets off and tested between them and found that the MFI electrician a couple of years earlier had connected one Rn with the switched load side of a spur fuse so when the switch was on Rn loop ok when the switch was off no Rn loop.
thought it may make easier for some of you next time your testing, switch on/off sw fused spurs
john