nfinch86

Yes, BUt you may have misunderstood the meaning of that term.

De-rating a circuit is done many times. But de-rating is for the total load of a panel, NOT the individual line, a breaker (fuse, etc) is there to protect the wiring from over load. An example is a 8 unit building, each unit may have a 100 amp panel, but the building set up may allow you to de-rate that to a 400 amp main panel to service the entire building, as when the units are offices, they may have 100 amp sub panels. but never need that much. it does NOT mean to use smaller wires. a 100 amp panel needs 100 amp wire, a 400 amp needs 400 amp wire. 50 amp welder plug needs a 50 amp wire and breaker, IF you have 10 gauge then its 30 amp. putting a 50 amp breaker on a 30 amp line, is removing the stated protection, and can cause you or your kid, friends, etc, to DIE.

A laundry have have 20 circuits for 30 amp dryers. While each circuit is still a 30 amp breaker, the main panel can does not need to have 600 amps. due to de-rating it can be less than a 600 amp panel, because it should never need that much. But each 30 amp line, must still be protected by a 30 amp breaker if they are wired with 10 gauge THHN wire. Just as 50 amp breakers should have at least 8 gauge THHN wiring.

Any more info and I will have to charge you

Does anyone have experience with Telwin mig Welders? Any comments? How do they compare to other brandnames?

Thanks Thomas, I'll do that. Do the rods need to be rated for DC to work? Like I said, I AM a neophyte!

HI; I Could not Agree More , ENJOY YOURSELF!!!! .... Norm :

Lemon Juice works well for me, a good 24hr. soak!!!..... Norm :

You can cut it the same as steal, torch, abrassive cut off wheel, hacksaw, or bandsaw, just depends on what it is (shape, size, weight) and how nice of a cut you want.

welder19

Click on the pdf link in the first post.

I would recommend instead of goggles, getting a shade #5 face shield. This will give you better visibility since you're not limited to a small window. Fibre-metal makes good shields and head gear at reasonable prices. You can find fibre-metal products online, or your Local welding shop can probably order it for you.

Be careful, there is a difference between a tinted green face shield and a true shade #5 face shield.

Also, don't forget to wear saftey glasses under the shield.

Edit:

Headgear: Fibre-Metal® F-400 High Performance® Faceshield With 4" Crown Ratchet Headband - Airgas.com
Shade 5 shield: Fibre-Metal® 4178 High Performance® 8" X 16 1/2" IR/UV Shade 5 Wide View Faceshield Window - Airgas.com

I am still working on my OA welding and becoming increasing dissatisfied with the goggles I have. I have tried various makes of the standard box shape with flip up lens. They all fit poorly, the lenses rattle around and the headstrap is worthless. I need something to go over prescriptions glasses ( I dont think cup goggles will work for me) and also to accommodate a cheater lens. I am willing to spend the money for something decent. The ones I am using are a real distraction. I would sure appreciate any tips.

Thank you

I have TM 9-2852 Instruction Guide - WELDING - Theory and Application - War Department . 3 June 1943

You would spend a small fortune on oxygen with one of those.
Save up your money for a real oxy/accet set up and then take care of it, it will last you half a life time.

welder19

Yes Lincoln is the Best in my opinion.I own the 140-T Great Machine! PS. I've been Welding 40+Yrs. & allways used Lincoln Machines . Norm :

Jayco looks good from North of the Boarder, here in ( Tobacoo Country ) now enjoy your new digs. Norm:

THANKS BOB: Yes the Belgian Hall is still here, I don't know about the Courtland hotel,as i'm a non-drinker.As far as the Tobacco Fields thier almost gone now.,being replaced by Gensing and other Crops. I look forward to talking with you & the other members of this very interesting & informative Forum.Your DELHI ONT. Friend Norm.

jayco: Thanks for the welcome, Yes Tobacco has been grown in S.W.ONTARIO for 80 yrs. not so much now that smoking is seen as a BIG NO NO! Most farmers are moving to different crops now. I Look forward to more posts & enjoying these conversations. Norm:

Hi Just Joined To-day: I'll be 58yrs. This Sat.-Sept.13/08,I've been Welding since I was 16 yrs. old & STILL LEARNING EVERY DAY.I'm an Iron Worker- Welder by Trade. I Live in Southern Ontario,Canada a small Farming Town called Delhi.,was Mostly Tobacco Country. I Own NORM'S MOBILE WELDING. We do a lot of Farm Repairs & Custom Fabrication in Norfolk,County,Ontario. I hope to post & learn more in the future.Norm Finch.Norm's THANK'S GUYS.