On 26/08/2012 10:53, Richard Russell wrote:
On Sun, 26 Aug 2012 10:48:05 +0100, Andy Burns
wrote:

What about the 'carter' method?
I can see it's more dangerous where ES lamp-holders are prevalent

It also has rather unfortunate consequences if the switches are
make-before-break!

Even with break-before-make there is the distinct possibility of an arc
propagating and causing the same consequences - especially if the load
is inductively-ballasted discharge lighting.

--
Andy