NoAnything from the detector going downwards???
As above, depends on what detector you were using and how well it was being used!The detector may not detect anything if there is no power actually passing through any wiring that may be there, meaning if the circuit is dead, not in use? then the detector may not "see" any wiring with no power running through any cables that may be present??
He might still have nicked the neutral side of a spur. If so, the way to verify that everything is OK would be to plug in a device, switch it on, take the clock off the wall then grab the screw to check if it is "live"...You drilled into the middle of a 'safe zone'.
Not a good idea!
How about removing the switch plate for a sneak peek ??
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