[Build] Next: Dirty Shop

Sean Glang seanglang at gmail.com
Mon Jun 28 18:26:14 UTC 2010

Hi all, first time emailer to this list.

I wanted to pipe in that in typical electrical wiring schemes, black wires
are reserved for one phase, and red are reserved for the second phase.  If
that is the case, its not a good idea to put all your heavy loads (like
power tools) on one phase and all your light loads (like lighting... heh) on
the other.  This creates load imbalance, can cause load on your neutral, and
violates elecctrical code.   To keep your lighting safe from tripping along
with your radial arm saw, simply put it on a seperate circuit.  For extra
super added safety, put that circuit in a different load center.

That's all for now, but i'd like to help out when I get back to california.

Sean is.

On Jun 28, 2010 10:33 AM, "jim" <jim at well.com> wrote:

  i bought electrical stuff for the dirty shop,
some of which (i hope) is sitting on the top of
the dedicated sub-panel, some of which is in the
storage-rack room.
  the idea is to power all shop lights and
outlets from the sub-panel:
  * run conduit from the sub-panel around the
perimeter of the interior, probably up near the
tops of the walls, dropping pipe down at
various locations to provide outlets and
  * outlets would be of two types: general
purpose and dedicated. general purpose are
duplexes for light-load hand tools. dedicated
are single receptacles for higher amperage,
in-place tools (e.g. radial arm saw...).
  * lights should be reconfigured, maybe use
some of the existing flourescents but re-hang
them in best locations, maybe install some
fixtures to provide spot lighting for work
  * switches can be distributed so's to
control work area as well as general lights.
  * there's the idea of having an emergency
shutoff switch, too, possibly one for each
dedicated receptacle and one for each general
purpose circuit.
  * probably good to redo the power track
so's to drop receptacles on cords for use
at the table(s) in the center of the room.
this might entail rehanging one or more
tracks and certainly rewiring so's to power
the tracks from the dedicated sub-panel
rather than from the primary sub-panels that
are currently powering them.
  * note policy is to use "black" circuits
for all receptacles and "red" circuits for
lights and built-in appliances. the point is
to keep lights separate, as the likelihood
of short-circuits is with receptacles: if
there's a short-circuit, it's good that the
lights will still be on.
  * i'm willing to help, including consider
alternate ideas. i don't want to do all the
work; i hope for help. probably i'm the one
to install the conduit and junction boxes
and others are the ones to pull wires,
install receptacles and switches, hang
lights.... this division of labor worked
pretty well with the darkroom (biggest
problem there was coordinating differing

On Sun, 2010-06-27 at 22:23 -0700, Ben Kochie wrote:
> Nice work on the floors. Next up I would ...
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