8 Dec
2006
8 Dec
'06
9:18 a.m.
On 8 Dec 2006 at 16:39, Tore Sinding Bekkedal wrote:
Which is a very good thing because Norway has no
neutral wire. :) (Two
phases, 220V p-p)
So, the distribution voltage in Norway is 155V RMS?
It seems to me that the situation with 110v power tools in the UK is
not all that different from our own US convention for larger tools.
I know of no portable power tools that use 240v, except for welders
and demolition hammers.
The distribution transformer (in the case of single-phase power) has
its center tap grounded and connected to the neutral conductor. So
my table and bandsaw, as well as my jointer and shaper have their
frames grounded while using 240v motors. So the maximum exposure to
ground in the case of an accident is 120v.
But all in all, if I were to be accidentally shocked, I'd rather that
it were 55v rather than 120v!
Cheers,
Chuck