John Rumm wrote:
On 08/09/2012 00:18, Graham. wrote:
On Fri, 07 Sep 2012 23:51:05 +0100, wrote:

On 7 Sep,
Graham. wrote:

The last 3 or 4 times I have visited them I have heard a thud, and the
lights blink at the same moment. This happens maybe twice per hour,
but not regularly enough to be able to predict the next event.

The freezer starting up?

I see what you mean, and maybe Nick had this in mind too. It might
account for the timing intervals, the inrush surge of the motor
starting acting as the cartelist to set whatever it is off upstream.

The inrush for an induction motor can be enough to dim the lights for
the whole house just on its own...


Depends. When I had a 1947 vintage lump of iron up a pole to supply me
the microwave would do that all on its own.


And trip the RCD when I installed a load of computers and other **** on it

NOW I have a freezer sized personal transformer to supply the house,
that doesn't happen :-)


Still odd though because where I hear the noise is not between the
kitchen and the CU, Quite the opposite direction in fact.





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rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.