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They say that they're not "code inspectors" and get around being sued by telling the customer to "consult a professional to verify" In CA you can just declare yourself a home inspector and you are one; no experience necessary.

Let's put it this way. He definitely did not get upset if there was more billed. He was a crook. Whenever 20' of wire used on a job he billed for a whole 500' roll.

One employer I had counted every wire nut on all the company trucks every weekend, then would go back through the records to see how many were billed. He did that with everything besides screws. I can think of better things to do with my weekends.

They also use 277V for lighting (the line to neutral voltage of 480V/Wye connected systems)

Self tapping screws differ from regular machine screws in that they have a fluted tip that clear the chips away before the the machine screws start if the proper size pilot holes are drilled...in theory. Realistically it is a different story (and quite frustrating, with about a 1 in 10 success...

Rather than drilling and tapping a hole, use a ground clip. It goes on the edge of the sheet metal on the box. https://www.homedepot.com/p/Commercial-Electric-14-12-AWG-Steel-Ground-Clips-Green-10-Pack-GOEC-CLIP/310741858

This is a perfectly acceptable way, especially for larger sizes where staples don't fit. T&B Ty-wraps are UL listed.

That's why I suggested a competent electrician. He could tell in a second.

A Sylvania panel to me usually means Zinsco breakers. A photo of the actual breakers would be helpful. (Either that or a call to a competent electrician)

If you have room in the panel, just install another breaker. At only 2' from the panel, just ignore (or use) the welder outlet. Buy a 30A breaker and #10 wire. Install a 6-30 (30A/250V) outlet.

Accuracy is important! I shows your level of knowledge and competence. :LOL:

There is no such thing as 115v system.....It's been 120/240v since the mid 1930s

Just turn the main breaker off if you can't figure out what circuit it's on. There's absolutely no reason to do it while it's energized.

6" is the minimum requirement for Rigid conduit, measured from top of the conduit to grade. PVC has to buried 18" or more.

It's useless. The eye the beholder. dept... One man's tin is the other man's gold. It's the least enforceable thing in the entire Code book.

The 1972 NEC had an Article 250 grounding rule that ended BX. (It required that grounding receptacles be used,for instance). The workaround is a thin copper or aluminum strip outside of the paper in intimate contact with the armor. The modified type is called Type AC.

EMT fittings have straight threads, as opposed to Rigid having tapered threads (NPT). The only rigid fitting that has a straight thread is a coupling.

That would require one to be touching 2 phases. BTW no 220 or 440 in all of the countries in North and Central America. I once had an electrician claim he was shocked by 3 phase. I guess he must have held on in each hand and had the third in his.....mouth.

Single recps. need to be rated for the full 20A. A duplex can be 15A.

https://www.wireandcableyourway.com/sjoow-300v