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Consumer unit upgrade with no slack on existing cables

Discuss Consumer unit upgrade with no slack on existing cables in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Martyn Fletcher

Martyn Fletcher

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Hi all,
As the title suggest, I have today replaced an old (1977) Wylex fuse board for a nice shiney 10 way consumer unit. However, when I took the old fuse board off the existing cables gave no slack, not even a smidge. They were solid and with just 200mm of cable left hanging out of the wall.
This was obviously not enough so I had to extend them to reach the new terminals in the new box. I have surprisingly not had this scenario for a very long time, so my dilemma now began. Do I use wago's, choc boxes or butt crimps? I opted for the crimps but also added heat shrinks to them as I did many years back when doing this. Probably a mistake, but I felt more comfortable with this despite the reliability of wago's.

Would you guys please let me know what you would have done given this scenario? A rewire was not an option before any comedians suggest it. ;)

Everything tested OK by the way. I'm just concerned about the longevity of crimps compared with wago's and choc boxes. They all come loose over time.
 
Gavin John Hyde said:
I had to extend a cooker circuit on my last CU change, used wagos for the 6mm twin and earth. the 3 pole red ones are good for upto 6mm and 40 or 41 amps. for the smaller sizes I tend to use the orange ideal inline connectors. not had a problem with them yet.
Click to expand...

Arent those red ones just push in? You can't re-use them so they seem to be more permanent. I should perhaps read up more on them.
 

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