C
cakey
Did some tests yesterday with my new alphatek 775 on some kitchen appliances that were sometimes tripping a 30ma rcbo. Went straight to the main suspect which was the washing machine, plugged it into lead i made up with conductors out of sheathing and clamped live conductors and got a reading of 22mA. Then did the same for the other appliances and and got some more high readings so i went to cu and clamped the kitchen ring cpc's, switched all appliances on and got 37mA and rcbo didnt trip. Ramp tested rcbo and it tripped at 20mA. Am i doing something wrong? Tester was set to 200mA range, should it be 2A? IR tested the circuit before and got >299 megohms.