my spiderbox has a CS6375 inlet on it. so now i have a 14-50 to CS63 adapter, and a 100' SOOW CS63 cable, and all my big toys are either 14-50 or CS63.
it's quite common that people to think you need 3 wire plus ground for 240 volts
- Thread starter The Cobbler
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wyliesdiesels
Well-known member
line and neutral in the US is 120v....
OccupantRJ
Well-known member
Before I retired from factory life I always ran a ground inside all conduit I installed because the company paid for the wire along with my salary and I could guarantee some careless drone worker was going to knock loose a conduit joint somewhere on something and not bother telling anyone about the damage. I had a contact pocket device that simply gets touched to a machine to tell if it is properly grounded.
I can't promise the is the exact listing. But it sure looks like it. If the neutral were completely missing, this cord would function properly with the Emporia Vue EVSE that I posted. The adapter is not good for an RV as others have said. The description calls out it can be used with a dryer. Not good for many reasons.
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That isn't the one I was looking at but the one I was looking at was on amazon and probably similar or the same given the pricing. I think it would have been fine if I was just running downstream to my powder coat oven or a similar 3 prong device. Wanting to run the spider box off it probably would cause me issues with the GFCI until I get a proper panel installed. I need the 120 right now more than 240 output so trying to avoid throw cash at a failure of an experiment. I'm existing off a HD 120 extension cord right now but pretty sure I won't be able to run my portable 12k midea AC unit off it and I know I certainly won't be able to run anything additional off it other than that.
whateg01
Well-known member
How much more are your taxes if it's no longer a storage shed. Seems like a huge hassle to avoid a few bucks
Snapped-off
Well-known member
Except for when it's not?
whateg01
Well-known member
What point are you trying to prove by pretending that what you are describing is remotely relevant to this discussion? All you do by continuing to insist that 240 uses a hot and a neutral in the USA is confuse new people who don't know any better. Does it exist? Yes. Is it relevant? Not at all.
CGT80
Well-known member
This is where I was going, when I asked what conductors were behind that 6-50r and whether it was metallic conduit.
I knew that NEC allowed it in the past, but was not sure if it is still allowed, plus some people prefer a dedicated ground wire instead of all the connection points that can exist with conduit.
Code, past code, and what works are all different things.
CGT80
Well-known member
Line to neutral is often 277 volt as well.
It also is not relevant to this thread. A smart person wouldn't waste time either trying to show off or just picking nits for the sake of arguing.
How are your comments helpful or relevant to the topic in this thread?
Maybe you should go start an electrical trivia thread......
Snapped-off
Well-known member
No less relevant than what ya'll are discussing in a thread about a heater. Read the thread title.
whateg01
Well-known member
If you say so
CGT80
Well-known member
My grandmother had a big shed as a workshop. There was a post with a receptacle outside it, like for an RV. The shed plugged in and was still considered movable and not a permanent structure.
Year over year who knows but considering up front the electricians quoted me 15K to install a meter loop I'll start there. I'm also in the city so there is codes to be followed and you need a licensed sparky for all the inspections. After that figure out whatever the county wants to asses and charge over the years I will still be living here.. I'll pass.
Side note.. The electricians had to be high AF when they quoted me that but I didn't bother to get a second quote after that session to be honest.
Right now I have a grand total of $620 invested and maybe another 250 to 300 if I do go ahead and add the subpanel in my garage with the wiring, plugs, conduit and other nick-nacks.
I have the spider box on the way as well as the other proper connectors to go in and out of it so right now the 20$ mystery is if I can use the adapter and at this point I can experiment with the 14-50 to 6-50 adapter on the offshore cables I have. I just went ahead and bought it along with the spider box and stuff. I figure for the time being my powder coat oven is still in the garage, since I have been holding off moving it to the shop (have to move a few things around and get a buddy to help me push and pull it) and I can move the section of that test circuit out in the driveway and flip the breakers and see if the GFCI's trip on the spider box. If somehow it doesn't then I will plug the SS2-50 adapter for the output in and plug in my oven and give it a test.
Down the road when I do the solar I will probably have 1500 invested in that.
Still plenty less then 15k as the beginner entry.
OP
thinking more on this, our stoves & driers were basically hard wired with no plug & outlets till the late 70's or early 80's .
if you wanted to move them you had to disconnect the wire from the terminals
but what would happen if I wired up my 3ø heater on split phase and landed the neutral?
it's wired delta, btw.
If someone was dealing with 480/277V or in Canukistan, 600/347V there might be a problem, but in the scope of this thread it's not a issue.
wyliesdiesels
Well-known member
so your residence has some exotic electrical service? please do share
Cruzan80
Well-known member
I think the bigger issue is that he keeps trying to claim it is relevant to the thread title. Even if someone were to need 240V Hot/Neutral (in a super specialized 3ph service using only one leg), they would still only need two wires for it (plus ground). So not sure what he would use the third wire for, just like the OP states!
OccupantRJ
Well-known member
I did the same with my first small workshop in my parent’s back yard. The electrical inspector who lived around the corner suggested it.
Our old dryer was from the 60s and had a ground and was also hard wired. The first time I heard of a dryer having a plug I thought it was strange too.
wyliesdiesels
Well-known member
code requires the EGC/ground wire, so you do need 3, unless one doesnt compare about code compliance and safety
TRWham
Well-known member
You would get 240 V on one coil, and 120 V on the other 2, and about 50% of the heat.
funny, that's what I get with two wires!
nadogail
Well-known member
My Welder and table saw are Connected to my 200 Amp service panel. The neutral and the Ground are tied together in the main panel, but are separated in the Sub Panels.
When I extended three phase 208-240 volt circuits i typically pulled in 5 conductors; 3 hots, a neutral and a Ground.
When I extended three phase 208-240 volt circuits i typically pulled in 5 conductors; 3 hots, a neutral and a Ground.
JackOfDiamonds
Well-known member
Many types of metallic conduit can be used as EGC. A low resistance ground is required. A ground wire is not.
NEC 250.118
sparky 1971
Well-known member
Exactly where in 250.118(A)(1) is that stated?
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wyliesdiesels
Well-known member
the conduit would be counted as the third wire since its being used as the EGC but the code you cited is incorrect. saying only 2 wires are needed and nothing else is incorrect, which is what I was correcting
When using flexible metallic conduits as egc, only good for circuits 20A or less. 6' or less. Otherwise need a ground wire.
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sparky 1971
Well-known member
Unless something has changed without me knowing about it, that's only for FMC. At least, it better be; I just installed a 200 amp 208 volt three phase feeder and used the EMT for my EGC.
I did mean flexible metallics. (I fix)
JackOfDiamonds
Well-known member
250.118(4)
sparky 1971
Well-known member
250.118(A)(4) states EMT is an acceptable EGC. 250.118(B) states GEC's can't be used as EGC's and there is no #4.
Below is the quote that I originally quoted.
A ground wire is not what? Going by what you said, it appears you are stating a ground wire is not an egc.
JackOfDiamonds
Well-known member
A metallic raceway can often serve as a equipment grounding conductor, such that a dedicated ground wire is not required. Common cases include a 240v circuit in EMT, which requires only two wires. I am not an electrician I just play one on the Internet. Consult your local AHJ.