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Bubba latest project.

Geo-TH,In

Geo-TH,In

Well-known Member
Bubba made me a universal 110/220 v extension cord. Instructors at Redneck Tech say he is an outstanding student. Most of the time he is out standing in the hall.
a129789.jpg
 
Tell you what, that Bubba dude sure is ambitious, I'll give him that, is he an "outstanding" student or "out standing" in the hall now lol

Can I correctly assume since its for BOTH 120 VAC and 240 VAC loads that Bubba ran 4 wires?? Namely Two Hot UnGrounDED Conductors L1 & L2,,,,,One Neutral GrounDED Conductor,,,,,,One Equipment GroundING Conductor???

Can I correctly assume the ampacity of the conductors are at least the rating of that largest what appears to be maybe a 50 or so amp Receptacle???

Can I correctly assume the plug not shown on the other end of Bubba's cord is of likewise sufficient ampacity??

Can I correctly assume the NEC's so called "Tap Rules" have been met inside there which can allow the use of smaller conductors tapped off the larger ones to feed those smaller 15 or 20 amp receptacles???

Gotta love Bubba and this is NOT to knock him or his ingenuity, its ONLY to perhaps serve as a "teaching moment" by the use of relevant and legitimate questions

Thanks George, as always a fun post and great picture......

John T
 
I sorta figured that lol gotta love Billy Bob and Bubba, over many years of farming I've done a lot of things myself that may be considered "questionable" .......

John T
 
Kinda looks like the wall of my tractor shed (I didn"t get the extension cord option). Except some my 110v outlets are GFI protected.
 
>>>"Can I correctly assume the ampacity of the conductors are at least the rating of that largest what appears to be maybe a 50 or so amp Receptacle???"

Hmmm I was thinking it would be more important that the ampacity of the conductors is at least the value of the circuit breaker supplying them. fine (well, maybe not code, but certainly not unsafe, right?) to put a 50A plug on a 30A circuit in other words. you just end up tripping the breaker when you weld too much.
 
Actually BOTH (wire ampacity and overcurrent protection device) are important. You first calculate the load then you size the conductors then you size the overcurrent protection device to protect the conductors.

If you put a 50 amp plug on a 30 amp branch circuit youre right, if you pull over 30 amps the breaker is gonna trip out. Again, if the load is calculated at 50 amps and if it were continuous I would size the conductors at 125% of 50 amps and then size the overcurrent protection device to adequately protect the chosen wires ampacity.

Fun chat and good point you raised, you need to be concerned with BOTH wire size and overcurrent protection. I figured I asked Bubba enough questions lol

John T
 
John,

I asked BUBBA how he was doing. He said he is making the best grade in his class. Asked how many are in your class. Ans. 2 if you count the instructor.

Don't think RIT is big enough to offer internet courses.

Before attending RIT Bubba got 3 college degrees, a BS, MS and PHD. I asked when he got his BS and he said after he bought a bull. I just had to ask where did you get his MS. He said got MS, More S**T, after he bought a heard of cows. I quickly saw were this was going but I had to ask where he got his PHD. Bubba said he bought his PHD at TSC, got both a 9 and 12 inch augar to go with the PHD.

So much for an educated BUBBA.

George
 
mazemeister,
You are right, 50 amps is when you are set on the 225 amps which I never use. At 110 amps setting the current is around 25 amps in. Most of my welding is done around 75-90 amps. Rarely use the 110 amp setting. Never tripped a 30 amp breaker.

Thanks, I'll let BUBBA'S instructor know he needs to do better.
George
 
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