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Hello; I need some help with capacity math on a three phase panel "upgrade". I had a electric contractor replace the entire service drop and panel(s) on my garage building. It is three phase service, it was an old printing shop with separate 110V Direct Current in parts, and a 120/240 Volt A/C...

Hi all; I am helping my sister clear out her late husbands equipment and ran into an old Lincoln tombstone, see the photo. It is free to me if I want it. Stored in a garage for probably 20+ years, and the cable ends are pretty chewed up. I understand these are useful tools, but have no idea how...

Hello; I recently had an electrical contractor upgrade the panels in my shop building, a former printing plant with three phase service. This powered a few 110V DC cartridge fuse boxes and a separate 110V A/C fuse panel. I had them replace it with a new Siemens 200A three phase panel...

Hi all; I would like an opinion from the electrical experts here. I have a 1930's commercial building in Detroit that is now my garage. It has a couple of 110 volt A/C circuits run with metal conduit, which are mostly buried in the floor concrete. The circuits are two wire, no ground wire, with...

Hi all; I have a 3200 square foot concrete block building in Detroit, which is my car play pen. It was a printing shop previously, and is an open floor space. It has a high efficiency natural gas furnace forced air with overhead duct-work; the furnace is out in the open space of the building. Is...

Hi all; I have a 1940's commercial building in Detroit that was used most recently as a print shop; now it is my toy-box. It has 110 Volt Direct Current lines running all over, that were used to power the printing presses. There is no 220 AC outlet in the building (which is three phase, BTW). I...