"Christian McArdle" wrote in message
...
Others, like the 2.2Kw Axminster ADE4000 Dust Extractor
don't have soft start. Axminster have told me that I
should double the running current and add another 15%
in cold weather.

Your design current doesn't include startup currents. You want to use Type
B
if at all possible, as they are safer. These can accept a startup current
up
to 3 times the design current, which would appear to be fine, as your
worst
case scenario is the 2.2kW at x2.3 current which will give 22A which is
not
going to trouble the wiring or a 32A Type B MCB, even if the ring is
already
nominally fully loaded, unless the startup current lasts for an unduly
long
period of time.

Christian.

Christian,

I was expecting to provide separate circuits to each
of the static machines in the workshop. So there
won't be any ring to worry about. The workshop
sockets ring will be protected by an RCBO.

Many thanks for your help,
Roy