Had a few days work this week ( makes a change) helping a mate who specialises in industrial breakdowns . Isolating at a 60 way x 30a Bill fuseboard we realised (after some confusion) that the bottom bank (or blue phase as I still call it) were in fact neutral fuses . Fuseboard was two phase and neutral , very old so no warning label and no circuit chart of course.!!
Lesson of the week , never assume you know what you are looking at !
Deke
Lesson of the week , never assume you know what you are looking at !
Deke