can I use extension cord on 240 current?

rkymtnman said:

i still dont' undertand how you plugged a 240 light into those receptacles? my 240 plugs would only fit in a 240 socket.

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Ya I was confused on that when I bought this from my grow store but I've used all my ballasts on 240 with it and my hlg550's plugged into it

Yep

Make sure its doesn't melt

I'm just gonna use the 120 lol don't wanna be on the news for being an idiot

growingforfun said:

id be very careful with that. is the extension cord rated for 220v? are the wires in the wall rated for 220v? ive seen some real ghetto setups and you don't want to be setting fires

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Is that what they mean by “fire” weed?

larrypizzimp93 said:

Ya I was confused on that when I bought this from my grow store but I've used all my ballasts on 240 with it and my hlg550's plugged into it

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not to doubt you, but have you ever measured each outlet with a multimeter for voltage?

I run all my lights on 240 split phase, my v is 248 v with timer set to lights off off 1.3 v

Midiver said:

I run all my lights on 240 split phase, my v is 248 v with timer set to lights off off 1.3 v

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less amps @ 240

More light too

larrypizzimp93 said:

The top box is 120 the bottom 2 are 240

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Absolutely not to code. The reason we have different sockets for the different voltages is so you do not insert the wrong plug into the wrong receptacle. Electrically the equipment may take it but if there was ever a fire you could say goodbye to any kind of insurance.

rkymtnman said:

not to doubt you, but have you ever measured each outlet with a multimeter for voltage?

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I'll check when lights are on but I accidentally plugged my ballast on 120 into the 240 and it smoked and shut right off so im guessing it's an actual 240

You do have a ohm meter right. That's why I hired an electrician, a very stoned electrician by the way & dat ain't my fault. I only grow potatoes.

Midiver said:

You do have a ohm meter right. That's why I hired an electrician, a very stoned electrician by the way & dat ain't my fault. I only grow potatoes.

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Ya, I had an electrician do mine too. That whole power box is ran on a 240v line. Not a "licensed" electrician lol but he knows what he's doing

Well if you don't have a tendency to light random fires in odd places you should be fine, no worries.

It's not a problem. You can run an extension cords on 220 volts.
The generic receptacle isn't code nowadays but that's the way it was done20-30 years ago.

70's natureboy said:

It's not a problem. You can run an extension cords on 220 volts.
The generic receptacle isn't code nowadays but that's the way it was done20-30 years ago.

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I am pretty sure American code is not much different than Canadian in terms of what kind of plugs and sockets you run which voltages. I have not heard it being allowed. There was a NEMA 2 that had two blade type connector but one blade was vertical and one horizontal. Top left.


Found a page on the history of sockets. I do not see where the two parallel blades were specified for 250V.




This page has some 240V sockets

I have been in many commercial buidings 30 years ago where the 220 outlets were painted red so people wouldn't plug 110 stuff into them. It's not ideal and I know why the code was later enforced. It's still no problem to run a good 12 ga extension cord.

All I am gonna say is that is dangerous as fuck, I don't care what country you are in. BAD BAD idea!

70's natureboy said:

I have been in many commercial buidings 30 years ago where the 220 outlets were painted red so people wouldn't plug 110 stuff into them. It's not ideal and I know why the code was later enforced. It's still no problem to run a good 12 ga extension cord.

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Fools were at work then. Why would a commercial building not use the proper outlet for the voltage? To save $20? As the links for the history of electrical plugs show the 110V parallel spade plug was never specified for the higher voltages.