I think I have gleaned sufficiently from other posts that it is acceptable to use good quality inline crimps to extend cables for terminatingwithin a newly installed CU. Invariably,for 2.5mm T&E and 1.5mm T&E these crimps will be red in colour. I ask the experienced electricians on this forum: is it best to cover the crimp with suitably coloured insulating tape or left as it is?
 
I think I have gleaned sufficiently from other posts that it is acceptable to use good quality inline crimps to extend cables for terminatingwithin a newly installed CU. Invariably,for 2.5mm T&E and 1.5mm T&E these crimps will be red in colour
Blue for 2.5mm and Red for the 1.5mm.
is it best to cover the crimp with suitably coloured insulating tape or left as it is?
Insulation tape is best left in the wholesalers - pointless. You can heat shrink if you like but no need
 
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I think I have gleaned sufficiently from other posts that it is acceptable to use good quality inline crimps to extend cables for terminatingwithin a newly installed CU. Invariably,for 2.5mm T&E and 1.5mm T&E these crimps will be red in colour. I ask the experienced electricians on this forum: is it best to cover the crimp with suitably coloured insulating tape or left as it is?

No, ...Never use PVC tape on crimp connections always use heat shrink!!! For an even neater job you could use bare crimps with 2 layers of heat shrink to insulate them. Or you can buy heat shrinkable insulated crimps. For aesthetics sake, i always like to see the appropriate core coloured heat shrink over crimp connections...
 
If you use the uninsulated ferrules crimped with a decent indent crimper and put 2 layers of heatshrink over it makes for a more streamlined joint.

images.jpeg
 
It may look untidy, but a wago is always a superior connection on solid core, to a crimp imo.... :)

Only in your world!! lol!!! Once a solid core has been de-formed within a crimp, you'ld need to be a ''Desperate Dan'' character to be able to pull it out!!
 
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Title
Crimps inside the CU
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Electrical Wiring, Theories and Regulations
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seftonbarn,
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Geordie Spark,
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