On Wed, 28 Jul 2004 23:08:44 -0500, "Don Young"
wrote:

You do not need the neutral for the air compressor or three phase loads. The
neutral is needed only for 120volt lighting and convenience outlets. Ground
conductors are needed for everything and must be kept seperate from the
neutral all the way back to the main service entrance panel.
Don Young

True - but putting in one or two extra wires is far cheaper than
repulling it all later. Stick wires for all three phases and a
neutral in that conduit now, and you future-proof yourself.

"Work Smarter, Not Harder."

If you need to get a bigger 3-phase air compressor later - or get a
mega big one and reuse that old power line for something else, and
that something else needs 3-phase and/or a neutral, you're ready.

And if not, in 30 years when they tear down the building you take
the copper in for recycling. It'll be worth more as scrap than you
paid new by then.

-- Bruce --
--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
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