In article , Wayne Whitney wrote:
On 2005-03-19, Doug Miller wrote:

In article , "toller"
wrote:

and then there is no advantage of 12-2-2
over 12-3. In fact 12-3 is better because it reduces the voltage drop.

It does what?

It does seem true that sharing a neutral between the two circuits on
separate legs reduces the voltage drop due to the wiring. The current
on the neutral leg is less than on either hot, so the voltage drop due
to the neutral leg is less than it would be with a separate neutral.

Irrelevant. This would do nothing to alter the voltage drop between the supply
and the load, which is the only place it really matters. Further, the
resistance of whatever load is applied to the circuit, even if it's just a
single light bulb, is orders of magnitude greater than the resistance of the
conductors.

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?