I forgot to mention, here are the pictures of the wires, I suspect
Red0V and black=Ground, white=Neutral? What the other one for? I
have auto-ranging digital multimeter that can do AC measurements. I
should just measure across Red & Black to see what I get?
I need to tap some electrical in an underground garage where my car
is. There are no wall outlet whatsoever and sometimes I need to plug
in some hand tools. Anyway, I found this box hanging off the low
ceiling, I opened and saw thew 5 wires, 4 wiht shield and 1 just
barecopper(ground). Can someone in the know please tell me which of
these wires I can splice into to get teh equivalent household voltage
of 120V, I plan to add a wall socket to it. I promise I will be
careful, where gloves etc. Thx
wow....i am unsure if you are qualified to perform this job...wearing
gloves does not protect you from shock, or burning your garage down.
please seek qualified help. I dont want to see anyone getting hurt
and this operation would not be very expensive for a qualified
electrician to do.
Sorry, but you need to know a lot more than it appears you know to do
that job. We have no way of knowing what those wires are from your
Note: you need more than just some wires that will give you 120V, but
you need wires that are on a circuit that can handle the additional load you
might be adding. I suggest a pro for his job.
|I need to tap some electrical in an underground garage where my car
| is. There are no wall outlet whatsoever and sometimes I need to plug
| in some hand tools. Anyway, I found this box hanging off the low
| ceiling, I opened and saw thew 5 wires, 4 wiht shield and 1 just
| barecopper(ground). Can someone in the know please tell me which of
| these wires I can splice into to get teh equivalent household voltage
| of 120V, I plan to add a wall socket to it. I promise I will be
| careful, where gloves etc. Thx
get a tester and see if anything is live
if so...........................call electrician.
You don't necessarily have a 120 volt feed in the box, even though you
probably have live wires. There are a number of possibilities, that could
cause problems if you tap into these wires, or do so incorrectly. Find
someone with some experience, and can determine what you have in the box. If
you do have a 120 volt "feed", installing a GFCI outlet is an easy enough
thing to do
It is hard to tell from here, but if the cable is shielded, it sounds
like you have some low voltage stuff. Maybe for a phone, doorbell, or
security. This wire is usually so small that you can bend it with
your finger. You will not be able to use it for power.
The only wires you can deal with here are the pink and the
orange/purple/yellow striped wires. DO NOT TOUCH ANY OF THE
Twist the pink and the striped wires into a figure eight
coupler and then lead off of that for your outlet.
REMEMBER NOT TO TOUCH ANY WIRES OF ANY OTHER COLORS!
If any of these instructions are confusing, then I would
suggest a professional electrician as this can be quite
dangerous for those with feeble electrical skills or minds.
I am not sure what you meant by "the pink" (I think you mean RED?).
Also what did you mean by "the orange/purple/yellow striped wires". I
am adding another picture with the wires labelled A,B,C,D can you
point out which one you are referring to.
I thought you gave up on this.
A to C B to C D to C Should all give you 120V A to C could
be 190V this would be the hi leg.
A to B B to D D to A will all give you either 240V or 208V
If you do get something similar to these readings, you could use B to
C or D to C for a 120V outlet. You can use A to C if it is not 190V.
Is there lighting? If incandescent, just get a screw-in adapter. If
fluorescent, open up the fixture and check on the ballast that it's
120 volts. Turn off the light at the circuit breaker and then add your
This is an underground garage. Which means it is probably in an apartment
building or condo development. These are not your wires to touch, they
belong to the building. They could be for anything such as lighting, etc.
They probably are at the NEC limit for capacity. You cannot just start
adding outlets and plugging in tools. Your description is so poor, some
words misspelt so bad that I don't know what you are saying. Your knowledge
of wiring seems to be as bad as your spelling. Leave well enough alone.
Don't touch anything. You'll live longer.
As others have said, it sounds like your knowledge level might be
inadequate for the task at hand.
Your meter will probably show you 220V between red and black.
Each of them is probably 110V. Black is NOT ground in utility
wiring - it is in automotive DC (perhaps explains your confusion).
White should be neutral, red should be 110 and black should be
110. The bare copper is ground. This sounds like commercial
wiring - NOT Romex. BE CAREFUL, it may be 3 phase with a high leg
for lighting, you will destroy whatever you hook to it. Tapping
into an existing circuit without having any idea what it is
feeding, where it is coming from, and how it is being used is NOT
smart. If you are dealing with a receptacle or lighting circuit
that is not critical or serving a designated circuit, the idea
will probably work. You really need to know the FROM and the TO,
before you proceed.
Keep the whole world singing . . . .
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.