I attended a call out to look into the cause of intermittent tripping of an RCD which covered about 10 circuits. New property so everything under 12 years old. I took the cover off the board and tested the Wylex 30mA RCD trip times with my Fluke. All satisfactory. After this I pointed, using my WDE driver, to the RCD, while talking through the problem with the customer. Although my driver didnt touch the RCD, it tripped. I thought it was a co-incidence, but I repeated this several times and every time the blade of my driver got within 4mm of the RCD it tripped. If I used my finger or the driver handle, it didnt trip.
My driver isn't magnetic (as far as I can tell).
Im going to change the RCD before stripping out the many circuits but wondered if anyone had any feedback on this? The CU cover is metal and I wonder if it, like my driver is interfering with the RCD internals?
Thanks for any feeback
Simon
My driver isn't magnetic (as far as I can tell).
Im going to change the RCD before stripping out the many circuits but wondered if anyone had any feedback on this? The CU cover is metal and I wonder if it, like my driver is interfering with the RCD internals?
Thanks for any feeback
Simon