On Mon, 25 Nov 2013 21:31:54 +0000 (UTC), Danny D'Amico
wrote:

On Mon, 25 Nov 2013 15:10:28 -0500, clare wrote:

Line1 and Line2 are generally red and black, with the neutral white
and safety ground bare or green

Everything you said about the "single phase" center tap made perfect sense.

People keep saying the neutral wires is normally bare, but, I must
say, mine is insulated.
http://farm4.staticflickr.com/3780/1...9139da3c_o.gif

Maybe that's odd, for the USA though, 'cuz everyone is saying that
the neutral is normally bare.
The "neutral" is NEVER bare in North America (except in some parts
of rural Sakatchewan Canada, where single wire earth return IS
actually still in limited use) In SWERT there is no "safety ground"
and it is not uncommon to get a shock when standing on the "ground"
and touching something that is connected to the "ground" some distance
away - like a water trough, fed with a steel pipe from a somewhat
distant water pump. If the trough is set on rock, or on a wooden base,
and an animal is standing in the mud and goes to take a drink, they
can recieve a rather nasty shock....