hi i have the following problem, im open to ideas
16th ed board. 100ma old wylex stand alone rcd installed on the tails protecting all circuits , 30ma split in the board covering sockets shower etc as you would expect.
i had to connect a replacement shower cable from 6mm to 10mm afetr a bathroom refurb.
i arrive esstablish tt system 133 ohms possible to convert to pme (.31ohms) if required, carry out zs at shower unit along with ins res test, all good.
I then carry out rcd test and nothing trips.
i walk to board and re test NOTHING.
I decide it must be 30ma rcd and return with a new unit, install it and .. NOTHING.
I am unable to get either rcd to trip even in i apply test current at the 100ma wylex unit, i have checked my testers and they work.
i think i read somwhere that these old wylex rcd units work in a different way to modern ones, could they cancel each other out?? (magnetic operation)
my next visit will be my third and im open to solutions to save another trip.
any ideas??
16th ed board. 100ma old wylex stand alone rcd installed on the tails protecting all circuits , 30ma split in the board covering sockets shower etc as you would expect.
i had to connect a replacement shower cable from 6mm to 10mm afetr a bathroom refurb.
i arrive esstablish tt system 133 ohms possible to convert to pme (.31ohms) if required, carry out zs at shower unit along with ins res test, all good.
I then carry out rcd test and nothing trips.
i walk to board and re test NOTHING.
I decide it must be 30ma rcd and return with a new unit, install it and .. NOTHING.
I am unable to get either rcd to trip even in i apply test current at the 100ma wylex unit, i have checked my testers and they work.
i think i read somwhere that these old wylex rcd units work in a different way to modern ones, could they cancel each other out?? (magnetic operation)
my next visit will be my third and im open to solutions to save another trip.
any ideas??
