Russell griffiths Posted May 10, 2018 Share Posted May 10, 2018 So starting to run new services to our plot and I have had to uncover the duct that the BT cable runs in. See pic. Running down the side of the duct is a thin wire just like bell wire, any thoughts on what it is I have my ideas, but what’s yours. Thanks. Russ. Link to comment Share on other sites More sharing options...
Dee J Posted May 10, 2018 Share Posted May 10, 2018 Looks like old GPO overhead pair. Maybe there to give something to detect, or early warning to excavator drivers.... 1 Link to comment Share on other sites More sharing options...
Onoff Posted May 10, 2018 Share Posted May 10, 2018 If it's similar to this then yep, old GPO drop cable: And for some light bedtime reading: http://www.britishtelephones.com/gpo/overhead.htm Link to comment Share on other sites More sharing options...
Russell griffiths Posted May 11, 2018 Author Share Posted May 11, 2018 I was also thinking it maybe for detecting the duct any others before I fill it back in. Link to comment Share on other sites More sharing options...
Construction Channel Posted May 11, 2018 Share Posted May 11, 2018 3 hours ago, Russell griffiths said: I was also thinking it maybe for detecting the duct any others before I fill it back in. Put a switch on it and flick it a few times just to make sure. It could be the lead from the big red button. Link to comment Share on other sites More sharing options...
Temp Posted May 11, 2018 Share Posted May 11, 2018 4 hours ago, Russell griffiths said: I was also thinking it maybe for detecting the duct But you could just as easily detect the cable in the duct. Link to comment Share on other sites More sharing options...
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