240 neutral wire

[jeff_hayes]

I have come across this many times lately that people have turned the neutral wire into the second hot wire on 240 panels. I am just curious if there is a certain way to describe this better then. stating the obvious.

both cases they have either taped the white wire with black tape or used a sharpie.

Any input would be helpful

Thank you

www.topnotchhomeinspection.com

[rmeier2 (Robert Meier)]

It is permitted to be reidentifed as an ungrounded conductor when you comply with 200.7(C).

200.7(C) Circuits of 50 Volts or More. The use of insulation
that is white or gray or that has three continuous white
stripes for other than a grounded conductor for circuits of
50 volts or more shall be permitted only as in (1) and (2).
(1) If part of a cable assembly that has the insulation per-
manently reidentified to indicate its use as an un-
grounded conductor by marking tape, painting, or other
effective means at its termination and at each location
where the conductor is visible and accessible. Identifi-
cation shall encircle the insulation and shall be a color
other than white, gray, or green. If used for single-pole,
3-way or 4-way switch loops, the reidentified conduc-
tor with white or gray insulation or three continuous
white stripes shall be used only for the supply to the
switch, but not as a return conductor from the switch to
the outlet.

[jfunderburk (Joe Funderburk, CMI)]

That’s how you do it.

http://www.do-it-yourself-help.com/circuit_breaker_wiring_diagrams.html