Ive got an electrical issue you might have information on.
When I installed my manufactured home, I didnt want any overhead lines, so all my utilities are buried. My meter is mounted on a typical pedistal, with a 100 amp main, and a 20 amp used for electrical to my shop.
There is a spare 50 amp breaker at the homes breaker panel, that used to serve the A/C, before I converted to swamp cooler, which Ive been using to supply power to the shop, via RPC, etc etc and also is the sole breaker for my welding area. Its now 20+ yrs old, and as Ive started tigging aluminum, Im running into supply issues..it pops the breaker when I get much over 140 amps of tig welding power going. Im sure that its weak from age and use, and needs to be replaced.
If Im going to have to expend or scrounge, its time to look at supplying the welding area better. With only 100 amps of service at the pedistal, Im a bit screwed, but I have to do what I can. I was tigging an aluminum assembly (intake manifold for NO injection) for a friend, and was popping that breaker just about the time Id get a good bead started.
The pedistal was installed in a concrete pad, so removing it and replacing it is going to be a PITA. I actually dont know what the amp rating of the pedistal is, I only know there is a 100 amp breaker in it that feeds the house. There is room for additional breakers, both
110 and 220. There are no stickers visible and Ive not pulled the meter and the covers to check. If I recall after 20 yrs, it was a Zodiac (?) brandIm in an unincorporated area, so county rules (Kern) follow state regs and are interpretted with the usual rural blind eye
Some questions if I may be so bold...
- How do I determing the total amp rating of the pedistal? Id hate to melt down the buss.
- Can I simply put in another 60 or 100 amp breaker..assuming the buss will handle intermitant loads?
- Would it be kosher to mount a weather tite electrical connector to the outside of the pedistal, and run SOW over to the welding area? A run of about 30 or so feet. I have at least that much "0" or #2 SOW I of course would (and have done so) put a sub panel at the welding area. I could hole punch into the breaker section and install rigid conduit and run it over to the welding area as well. I have plenty of sutible 4ga wire that I could run, but since the heart issue..Id rather not be trenching by hand this time of the year espesialy.
- Do I have to rip out everthing and in$tall a new pedi$tal, and if $o..what would you $uggest for 200 amp $ervice, and where do I $crounge one? I would NOT be changing the service at the home. The
Mine, IRRC correctly was purchased at Home Depot or similar and the name was Zodiac or something that started with a Z. The wife has all the manuals/docs filed someplace and she is back East for a while.
Both tig welders are rated at 100 amp, 220, and while I can run them normally just fine with most materials..aluminum is requiring me to draw far more power than Id normally use for any of the welding I normally do.
I thought I had a pretty good grip on normal electrical issues, as I had a C7-C10 for a number of years, but this is way outside of my expertise. I dont know if its even code to tap into the pedistal above ground. Shrug.
Thanks
Gunner