you can take the ECS health and safety test
ECS Health & Safety Assessment | ECS Card
then apply for a labourer card which will get you on site as a mate/electrical labourer. Some sites will let you on provisionally with just a copy of your ECS H&S test certificate until your card comes through which can take a couple of months. If you can persuade someone you are working with to sign the appropriate parts then you could get a trainee card but it doesn't make much difference in my opinion. Many sparks have labourer cards because they've never got around to doing their NVQ3 but what matters most is that you are competent.
ECS Health & Safety Assessment | ECS Card
then apply for a labourer card which will get you on site as a mate/electrical labourer. Some sites will let you on provisionally with just a copy of your ECS H&S test certificate until your card comes through which can take a couple of months. If you can persuade someone you are working with to sign the appropriate parts then you could get a trainee card but it doesn't make much difference in my opinion. Many sparks have labourer cards because they've never got around to doing their NVQ3 but what matters most is that you are competent.