- Reaction score
- 17,194
It's a shed with '5 sockets in and some basic lighting', op didn't state they were going to be running a machine shop out of it. I understand where your coming from. Obviously if he would have said what he was intending on using the shed for and then listed in detail every piece of equipment that his friend would be using then I would have been happy to point him in the right direction as to what size cable he should be installing. But instead I pointed out that maybe using the In value that he imo had possibly sat and worked out (seeing as it's only 5 sockets I'd have said he had no intention of pulling 40amps) he could look at the tables in the regs and then come to a conclusion for himself and then possibly come back and show how he come to his decision and then we could help out from there.
Yes, but he is a trainee, so it would be far better to help him understand the proper process and calculation rather than suggesting shortcuts without a proper explanation.
Any experienced electrician will be able to size this cable without any calculation just by a rule of thumb, but it is wrong to suggest to a trainee that they should select cable sizes in this manner