Just a clarification.
A white wire is never called a common. It is routinely called a "neutral", but not "common.
Also, white and green/bare do perform the functions stated, but this is ALWAYS true. And they are kept separate outside the MAIN panel. In a sub-panel they are on separate bars.
The fact that they are on the same bar in a main panel is of NO consequence, they still perform very different duties the moment they leave the main panel.
--- In DoIt_Yourself@yahoogroups.com, S_Wilson <virtualwilz@...> wrote:
>
> White is common. Common and ground are the same inside a sub panel but
> outside the sub panel they preform different functions. A ground is
> there to protect from shock in case there are any voltages from the
> wiring to the frame of an appliance. It protects you from being the
> conductor of a voltage fault to ground. A ground never carries a
> current unless there is a fault.
> A common always carries a current when an appliance is on and is a shock
> hazard due to it being above a 0 volt threshold when a current is present.
> Ground and common shouldn't be mixed outside the sub panel. Run separate
> wires.
> I see it done by equipment installers at work, using a ground for a
> common, but it is a dangerous practice.
> Steve
>
> On 9/20/2011 9:46 AM, hapennyherald wrote:
> >
> > Have something I am uncertain about. The wiring to a stove top is 3
> > wire + ground Has Black Red White and a smaller bare. The cook top has
> > Black Red Green all insulated.
> >
> > My inclnation is Black to Black Red to Red and White to Green (since
> > the white and ground are attached to the same bar in the panel) and
> > attach the bare wire to the metal box ( since metal boxes have to be
> > grounded.
> >
> > Also would you advise wiring an outlet or hardwiring?
> >
> > Thanks David
> >
> >
>
No comments:
Post a Comment