Ok I get called to a job where there is no power to the flat. Intake is in a small basement cupboard, 25mm swa protected by a Bs88 80a fuse in a switch fuse. Test for continuity and the fuse has blown. Fit a new one and I'm sure you can guess the outcome..... New fuse blows.
Go up the the tenants cu and ir at 250v the incoming swa tails, live to neutral, live to earth etc and get a reading of around 150mohms on each. Now This job was last thing tonight and my brain is frazzled, what am I missing, the cu is a 16th edition skeleton board, around 15 years old, no one else is affected in the flats, oh and the new fuse blew with the main switch off
Go up the the tenants cu and ir at 250v the incoming swa tails, live to neutral, live to earth etc and get a reading of around 150mohms on each. Now This job was last thing tonight and my brain is frazzled, what am I missing, the cu is a 16th edition skeleton board, around 15 years old, no one else is affected in the flats, oh and the new fuse blew with the main switch off
