21 Feb
2007
21 Feb
'07
4:39 p.m.
On 21/2/07 06:11, "Bob Bradlee" <caveguy at sbcglobal.net> wrote:
That 32A MCB and the breaker in the Pro are current-operated devices.
I'll bet the main switch is an RCD (and not current operated at all), and
what's tripping the latter is an earth leakage problem.
Thing is, some older mains filters have a fairly high earth current
anyway (one reason I don't want an RCD anywhere near the mains to my
workbench). SO there may not be an actual fault. But replaceing the
filter (or the capacitors, possibly with lower value ones) might get it
running.
The 5 minute delay is a puzzler though...
-tony
would heat up and pop, I swaped the breaker out
with a different one of the
same size and it that held just
fine. The circuit I moved the week breaker to, normally only runs 7 or 8 amps
and it never failed with the
light load.
Thing is, if it was something like that then the 32A breaker running the
upstairs ring main would pop rather than the whole house, that to me shows
more of a sudden leak to earth than anything else. It's still odd that the
Pro's own PSU breaker doesn't pop before anything else does.