It doesn't really matter which 2 spaces you use. With me so far? You can use 1-space, 2-space or 3-space breakers. Now if the 3-phase is wired Wye or regular Delta, power is symmetrical, so you can use any position without worrying about it. However, a wild-leg delta system, watch out! Every third row in the breaker panel is the "wild leg". The problem is, the last guy didn't.
Mind you, the National Electrical Code specifies which particular phase must be wild-leg on the panel. If it's wrong, I'd fix it, but beware - there's a difference between swapping 2 phases and rotating all 3 , and the difference is motors will run backwards. We are code mavens here, and when you really embrace it, code is your friend.
Code protects you from wrecking stuff and killing people. The Oakland warehouse fire should be top-of-mind when working in converted spaces, so very preventable - and thousands of creative types are being evicted from similar spaces, a tragic loss to arts and culture. You want the fire marshal coming through and seeing really competent electrical. Since you say you do have good grounds presumably in the metal conduit , please eradicate those horrible NEMA 10 receptacles. Generally in this type of wiring, you don't just install random receptacles.
You wait until you know exactly what machine will go there, and then provision the power it requires, using the receptacle that's correct for that. NEMA 15 if he wants 3-phase. Here are the right colors when dealing with wild-leg.
If you see any existing neutrals, grounds or high-leg that aren't the right colors, please use some tape of that color to tag them, for practical clarity. Mind you, for neutrals and grounds 6 AWG or smaller, Code requires you use wire of the correct color, so do that in any new work. US, Canada and the rest of North America.
Don't confuse "poorly enforced" with "legal". By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Home Questions Tags Users Unanswered. Here's the resulting voltage: Violet and red make sense, but green seems impossible?? Skinner Skinner 2 6.
Hook up v outlet. www.thelongevityrevolution.com: Performance Tool W V, 25' x 18GA Metal.
Looks like I've discovered I have a high-leg or wild-leg delta system. I assume it's not safe to use dual-phase v equipment on this outlet? Hah, you figured that out while I was editing! This is not a hobby to be doing work in a commercial space for other people! You could have burned up some expensive equipment because you didn't know what you were doing.
Stick to installing fixtures and replacing outlets in your own home.
New Washer
Do these look like your numbers? I for one would paint the high-leg rows orange on the panel cover, so it's obvious. Look out for other shoddy work We are code mavens here, and when you really embrace it, code is your friend. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. So we got a new washing machine to go in a house built in the late 50s. When the appliance installer came to deliver the appliance, we ran into a snag with connecting the washer The appliance delivery didn't know what to do with the crazy outlet and thought he could just run the cord over to a standard plug 6 feet or so away used by the sprinkler control system with extra plugs for whatever but the cord was too short.
My intuition would be that washers and dryers are usually on their own circuit for a reason, and running a heavy duty extension cord would be a bad idea. So what do we need to do to hook this up? Is there an adapter or wiring change that would convert this plug to the voltage needed by the washer? Or do we need to exchange the washer for one designed for a volt plug?
Do these look like your numbers?
Or would an extension cord actually be a reasonable solution? Getting a new washer will depend on the manufacturer, dealer, and other factors that are off topic here. If you lack this knowledge, or are not comfortable working with electricity, please contact a local licensed Electrician.
If you decide to tackle this project yourself, here is an overview of what needs to be done. You'll be going from a configuration with two ungrounded hot conductors, and one grounding conductor NEMA To a configuration with one ungrounded hot conductor, one grounded neutral conductor, and one grounding conductor NEMA To do this you'll have to swap out the double pole breaker for a single pole breaker, and repurpose one of the conductors.
Once everything is finished, you can flip the main breaker, and the new breaker to the ON position. This answer is only applicable in the US, and possibly Canada. You have two concerns - the voltage differential and cord reach.
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On the second one - do not use an extension cord. You're in an area that could potentially become very wet.
Mixing extension cords in there is just bad juju. On the voltage differential, you may be stuck. First, I would measure the voltage at the outlet - if it's actually V, you're in luck and can just change out the power cord on the washer. If it's V, you may need to have an electrician come in and change the circuit, if the washer can't be made to accept V. The general rule is to "make the device the washer in this case match the house", so you may also want to consult with the store that you bought the washer from.
By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies. Home Questions Tags Users Unanswered. How can I connect a V washer to a V circuit? Tester k 54 Jessica Brown Jessica Brown 1 4 You're going to have to either get a washer that accepts V, or change the circuit.
New Washer Getting a new washer will depend on the manufacturer, dealer, and other factors that are off topic here. At the Panel Before you begin, you'll need to purchase a 20A single pole circuit breaker that is compatible with your service panel, and a blank panel cover insert. Start by turning the power off by flipping the main breaker to the OFF position, then verifying that power is off using a non-contact voltage tester.
Remove the service panel cover be careful working in the open panel, the main lugs are still energized even when the main breaker is in the OFF position. Locate the breaker for the washer.