16mm suppliers tails

[Snailspark]

If the suppliers meter tails are 16mm, do I have to use 16mm for a consumer unit on the consumer side or is it ok to use 25mm still?

 

[MrPupsi]

Depends on the main fuse protecting the installation.
I’m guessing it’s 60/80a with that size existing tails?

 

[littlespark]

It’s still ok to use 25 if that’s all you’ve got. Nothing wrong with oversizing.

 

[Dustydazzler]

16 for 16

25 for 25

have on occasion used 25 with 16 but only when I have run out of 16

 

[newfutile]

I always install 25, that way it covers you if someone installs a 100 amp cutout fuse and makes it possible for DNO to upgrade the supply if needed for EV and the like