480 vac Conduit

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Re: 480 vac Conduit

gfretwell #180070 08/12/08 12:45 AM

Joined: Oct 2006

Posts: 745

Fredericksburg, VA, USA

E

EV607797

Member

Originally Posted by gfretwell

I know they can weld, grind and polish stainless to make the outside look like it was always one piece of metal but the inside could look like a hacksaw blade.

I love that response! Well stated for sure.

I completely missed the OP's intent here. I thought we were speaking of field-installed material where the NEC would likely be the most likely code being referenced. True, if it is a skid-mounted or portable assembly, just like a manufactured home, the rules change dramatically.

---Ed---

"But the guy at Home Depot said it would work."

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Re: 480 vac Conduit

EV607797 #180102 08/13/08 11:09 AM

Joined: Aug 2008

Posts: 10

California

S

shop_test

OP

Member

Originally Posted by EV607797

Originally Posted by gfretwell

I know they can weld, grind and polish stainless to make the outside look like it was always one piece of metal but the inside could look like a hacksaw blade.

I love that response! Well stated for sure.

Actually this is sanitary tube that is argon purge welded. The inside of the pipe is not how you described. The seam on the inside has less than an 1/8" "smooth" seam. As I stated the welds are performed by the same crew that is welding the pipes for the rest of the aseptic or sanitary food/beverage process process.

As for the skids, unfortunately even though they are simular none of them are exactly the same so I do not think that we could have them listed.

Re: 480 vac Conduit

shop_test #180105 08/13/08 01:51 PM

Joined: Jul 2004

Posts: 9,931

Likes: 34

Estero,Fl,usa

G

gfretwell

Member

I agree this is special welding, not what
I see.

Greg Fretwell

Re: 480 vac Conduit

gfretwell #180106 08/13/08 01:59 PM

Joined: Jul 2004

Posts: 9,931

Likes: 34

Estero,Fl,usa

G

gfretwell

Member

Perhaps you could get closer to the letter of the code of you pulled a cable through the pipe? I am starting to believe I would 90-4 you with THHN if you could show me the inside of some of your welds. A guy can screw up the deburring process with EMT and I just cut my finger yesterday on a rigid coupler. At a certain point we just have to ask ourselves "is this really safe?"

Greg Fretwell