Is this dangerous? Connector blocks below sink.

[ban-all-sheds]

Identify him ( not here ) by name and contact details to Trading Standards

And Building Control - they have a statutory duty to enforce the Building Regulations, and it is a criminal offence to contravene those.

 

[Draughtsman]

I can't help thinking that the guy just didn't have a drum of 16mm, and 5m lengths from Screwfix would have come up too short to connect new CU and meter. So he chose between an expensive 50m drum of 16mm and putting the bodge connector blocks in...

 

[ban-all-sheds]

Which guy?

You have a meter, and it is connected to the CU.

When a new meter is fitted, the meter installer (not your soi-disant electrician) replaces it and connects it to the CU.

to what were the new tails from the new meter connected when the new meter was installed?

 

[ban-all-sheds]

It was agreed that the original tails would be removed and replaced with longer, continuous cables.

Agreed with whom?

The DNO?

There shouldn't have been connector blocks.

There mustn't be under the floor like that.