Tee Taps, welders, #6 wire

[dontlifttoshift]

Want to make a 70ft run of #6 wire to feed a welder outlet and drop a couple more outlets along the way and I came across these.

http://www.morrisproducts.com/pc_product_detail.asp?key=058639A5179040BDA470D0F18126DA2C

It seems that they are about the same as the Polaris connectors but not insulated. So strip the middle of the wire on the main run, install this tap, install pigtail and then insulate it alot and good to go......? Of course all of this is in a box with a proper cover. All THHN wire in 3/4" EMT.

Semi related novice question, would I do the same with the ground or can I crimp eyelets on to the ground wires and screw them to the box.

Thanks all.

 

[mm08822]

These would not be fun to insulate 3 of these in a box and jam a receptacle on top of it. Plus your trying to not cut the supply conductor at the same time.

These are better used in a trough.

 

[dontlifttoshift]

Sorry, I should have specified. The receptacle will be in another box so when I said pigtail, I meant wire running to the box with the receptacle in it. All that would be in the junction box would be 3 of these.

 

[sberry]

Wouldn't cause me to lose sleep with the full size wire and 50 breaker.

 

[klassenl]

https://commerce.ilsco.com/documents/PDF/TechnicalDrawing/M2814-02.pdf

Here is an insulated version.

 

[dontlifttoshift]

Found these

http://www.globalelectricalsupply.com/2-AWG-Parallel-T-Tap-Connector-With-Cover-p/gp-2wc.htm

 

[matt_i]

If you played your cards just right, the ground "pigtail" could also be a loop thru the shorter side, connect one end to the device/receptacle, and the other end to the box with a ring-terminal/lug. Getting slack to work on it and push it back into the box is going to be the biggest challenge as mentioned. Buying a larger sized grey steel junction box like 6x6 or 8x8 would be helpful, but they do stick out more if surface mounted...

 

[pattenp]

If this is on residential property and you are concerned about meeting code then multiple outlets greater than 20A are not allowed on a single circuit under international residential code (IRC). This is only if your state or locality follows the IRC and how they interpret the code.

 

[sberry]

How far you have to go for the first one? By the time you go thru this if you have spaces it's not a deal to run a separate circuit. With separate you may not need 6 wire depending on which machine is connected. The only ones need it are some 250 migs.

 

[sberry]

I should have said factory cord and plug units.

 

[dontlifttoshift]

I don't know which machine will be connected where or when, it could vary day to day. My panel is filling up fast. Cold Saw, shear, and Pullmax are 3 phase and I have 220 for the (future) mag brake, band saw, and others. If I ran 3 separate circuits, I would likely still run #6. #bettertohaveitandnotneeditthanneeditandnothaveit

 

[wyliesdiesels]

I don't know which machine will be connected where or when, it could vary day to day. My panel is filling up fast. Cold Saw, shear, and Pullmax are 3 phase and I have 220 for the (future) mag brake, band saw, and others. If I ran 3 separate circuits, I would likely still run #6. #bettertohaveitandnotneeditthanneeditandnothaveit

so u have 3phase in your shop?

 

[dontlifttoshift]

Yes.

All of this stuff is currently operating in the main shop, the end unit was always a rental but I'm done with tenants and need the space so we are currently renovating it to be our dedicated fab shop. That unit has it's own 200 amp panel and meter that I will be using.

To be clear, the circuit we are talking about is dedicated to welders, nothing else will be plugged into them at any time. Sberry brought up space and that is the only reason I mentioned the other equipment.

 

[ard]

Wouldn't a single split bolt work???

 

[Barnabas]

Wouldn't a single split bolt work???

When I worked as an electrician, this is what we used if the wire was too big for a wire nut. They come in all sizes. Then we wrapped with lots of electrical tape.

 

[ard]

When I worked as an electrician, this is what we used if the wire was too big for a wire nut. They come in all sizes. Then we wrapped with lots of electrical tape.

My practice is 130C rubber tape first, then 33+ on top.

 

[rburke65]

We used to use, rubber, then friction, then 33.

 

[dontlifttoshift]

Worked great. Mounted in a 6x6x6 box.

 

[Norcal]

Why are you running a neutral to welders? That is squandering money.

 

[wyliesdiesels]

Was gonna say the same thing.

 

[dontlifttoshift]

Ground wire. I realize it should be green but all the 220 in the shop is wired this way so I figured I would follow suit.

 

[wyliesdiesels]

Its incorrect. Shouldnt knowingly follow something thats wrong.

Perhaps the other 240v(220v isnt used anymore) circuits are 120/240 and are using the conduit as a ground. Or they are non grounded 120/240v circuits.

Regardless, u have metal conduit so u couldve omitted the wire all together and saved some money.

 

[Norcal]

220V color code is brown for the hot, blue for neutral, and yellow w/ a green stripe for earth / ground, it is also 50 hertz, North America is 60 hertz. The days of using a white for grounding purposes are long over, as it used to be allowed to ground dryers & cooking equipment to the neutral, that was disallowed in all but existing installations.