exothermic welding

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wireguru

Senior Member
its a deli, but where? is it in the ground floor of a highrise office building for example? the building might have certain standards to adhere to.
 

jim dungar

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Location
Wisconsin
Occupation
PE (Retired) - Power Systems
I have a set of prints for a commercial space in San Diego County Ca...and in the general notes it says,"All bonding electrodes shall be exothermically welded."and in the service entrance notes it says,"all grounding electrodes shall be exothermically welded.Mechanical grounding methods not acceptable."
According to your quote of the specs (my emphasis), only the GEC's need bonding.
 
Try getting out of a 4" UG PVC conduit to feed a 200 amp panel 80ft away. What you dont know was the engineer accidentally clicked a 4 rather than a 2 on his way out the door friday afternnon at 4:59 on his way to Vegas. With my experiance what is on the plan is what must be installed unless you can get the engineer to amend it. And you should have caught that note on the corner of the plan with your magnifying glass anyways when you bid it so you should be coverd........heh.
 

Fulthrotl

~Autocorrect is My Worst Enema.~
Yes it only applies to the GEC...:thanks guys

thought so.... you either need a cadweld mold for the size wire
needed, or a one shot mold....

they aren't that hard to use, if you've never cadwelded...
gloves and face shield. the stuff burns at 3,000 degrees F.

make sure EVERYTHING is dry... the ground rod, and the conductor.
this is VERY IMPORTANT!!!!

now, where to get the cadweld stuff? your wholesale house might
have it, but most likely won't.

here is where you can get everything you need to ground anything...
they have a larger cadweld inventory than erico, by about double the
amount. they are in buena park, calif. they ship everywhere.

Mayday Grounding
http://www.maydaygrounding.com/

they are experts at dealing with cadweld virgins. it won't hurt.
bring money... this stuff isn't cheap. you can leave with a small
cardboard box the size of a six pack, and have $500 in it, easy. :-(

a couple of one shots will probably only be $25, however.....


randy
 

jrannis

Senior Member
Seems like the designer was interested in Cadwelding the "electrode" thats what I would do.
Send an RFI to him.
Architech. Not soft enough to be an interior designer and not man enough to be an engineer.
 
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