Have the builders supplied the electrician?
If so ask the contractor what he thinks or ask th electrician himself.
Yes this is wrong.
Worryingly if this is wrong what else is wrong?
Ask if he is qualified and registered. Get proof.
Possibly get another spark in to check or if building control is involved ask them for a visit. They will know.
Not ideal I know, but you don’t want the project finished to find it then needs putting right.
If so ask the contractor what he thinks or ask th electrician himself.
Yes this is wrong.
Worryingly if this is wrong what else is wrong?
Ask if he is qualified and registered. Get proof.
Possibly get another spark in to check or if building control is involved ask them for a visit. They will know.
Not ideal I know, but you don’t want the project finished to find it then needs putting right.