Electical wiring question, temp job box

[Landpimp]

I have(borrowed from dad) one of those portable electical job boxs, the kind that looks like a small table, 220 comes in, then you can use 220 or 110 off of many plugs, its weather proof.

I need to wire this into my old 220 dyer plug so I can run heavier duty power outside when building a fence, my house just has no outside plugs, figured this would work, its the same outlet(dyer) I run my 220 welder off of and I have backfed(please no grief about that) the house with the generator thru.

So the problem is, the job box has 4 wires, my dyer/welder plug has only 3.......so what do I do? how do I wire up a new plug(on end of job
box cord)? which wire do I leave off? or can I even leave one off? or will this even work? will it just stick me with 220 only.......as I really just need 110(to run normal power tools off)

 

[Landpimp]

OK.......while waiting I have been reading

sounds like I just leave the nutral off......2 hots and 1 ground, will this do 220/110 still?

all I need is 110 really

 

[LandCruiserPhil]

OK.......while waiting I have been reading

sounds like I just leave the nutral off......2 hots and 1 ground, will this do 220/110 still?

all I need is 110 really

To be safe and do it right you need a netural....

 

[Landpimp]

then how do I do it right with what I got?

gotta get 110(at least) to my job box, got 3 prong(quessing it must be ++ and ground) 220v to work with.....and thats it

funny.....my house didnt' have a nuetral for 7 years, it had rusted off the panel.......what a trip to find that out.

To be safe and do it right you need a netural....

 

[Toyo FJ40]

If you dryer plug was new it would have 4 prongs. From what I understand sub panels (like your job box) must have separate ground and nutral, where as main panels the ground and nutral are tied together. If you use your dryer plug you would be carrying your 110 load on an unisulated ground wire. (chances are you do anyway because some dryers use 110 with the 220).

Kevin

 

[Koffer]

You must have a really good soil for grounding.

Around here you loose the neutral and it will burn the CATV wire off the house or watch everything plugged in go "poof" and let out the "magic smoke" that makes things work

funny.....my house didnt' have a neutral for 7 years, it had rusted off the panel.......what a trip to find that out.

 

[Landpimp]

and thats how we found out there was not a nutral anymore....wierd power issues and some "magic smoke"

You must have a really good soil for grounding.

Around here you loose the neutral and it will burn the CATV wire off the house or watch everything plugged in go "poof" and let out the "magic smoke" that makes things work

 

[Landpimp]

Old house......3 prong dyer plug, the mail breaker panel was upgraded in the 80's sometime, so its semi modern. My welder runs fine off the 3 prong. And the generator powered 220/110 feeding back thru the same plug

oh and don't use my 220 dryer, I am using natural gas and 110

QUOTE=Toyo FJ40;2595458]If you dryer plug was new it would have 4 prongs. From what I understand sub panels (like your job box) must have separate ground and nutral, where as main panels the ground and nutral are tied together. If you use your dryer plug you would be carrying your 110 load on an unisulated ground wire. (chances are you do anyway because some dryers use 110 with the 220).

Kevin[/QUOTE]

 

[Koffer]

What you can do is pull the cover off the plug (turn off breaker 1st ) and see how many wires are behind the outlet . If theres 4 (white ,red,black and a ground ) you can just change the outlet to a 4 prong .

 

[honk]

If your tools are all 110v why don't you pick up a cord with 12 gauge wire and three or four outlets to plug in where your TV is and drop it out a window?

Or do you need the TV to watch and pause your step by step howto videos?

 

[Landpimp]

man now why didn't I think of that

I would rather run the power off the spare circut I have, i know it can handle the loads and I am tired out s*** out my window....and old damn house has like one 110 plug per room......

no how to needed.....I have a 65 year old true Nordic craftsman doing the fence...I am just manual labor.....dig holes, move s*** around......stuff I am good at

I got a killer job box, I got a spare 220 circut......I must make use of them

If your tools are all 110v why don't you pick up a cord with 12 gauge wire and three or four outlets to plug in where your TV is and drop it out a window?

Or do you need the TV to watch and pause your step by step howto videos?

 

[Landpimp]

advice I was givin..........tie the ground and neutral together......what say the sparkies

 

[SteveO]

advice I was givin..........tie the ground and neutral together......what say the sparkies

According to the Canadian code (can't speak for the NEC) you're not allowed to ground the neutral anywhere but in the service equipment. I think some of the dryers down there ground the neutral in them though and that's why when an appliance comes up across the border the cord needs to be changed and the neutral isolated from ground. We don't even have the same 240V, 30A outlet up here that you have for your dryer. Maybe one of the US sparkies can weigh in. LandcruiserPhil know's what he's talking about, maybe he'll answer for you.

 

[Toyo FJ40]

How about you get a 4 prong outlet and some 10/3 wire and run an outlet at your breaker box for your job box. you can get a new 30 amp breaker or hook it to your unused dryer breaker and then use that for your generator plug in.


Kevin

 

[Landpimp]

my breaker panel is not very easy to access or run stuff to.....its in the basement/crawlspace/bombshelter

How about you get a 4 prong outlet and some 10/3 wire and run an outlet at your breaker box for your job box. you can get a new 30 amp breaker or hook it to your unused dryer breaker and then use that for your generator plug in.


Kevin

 

[Waorani]

advice I was givin..........tie the ground and neutral together......what say the sparkies

That's what I do. Ground/neutral are connected in the panel anyway (or at least in mine - but then again I installed it!!) so why not?