rong: Don't you mean poor 'bonding' ? Just being a PITA, I get your point. I am an apprentice, and I am all for bushings, bonding-type locknuts at panels and such, etc. So, it was grounded, it just had a sharp edge?
A different example...but poor grounding just the same...
While working as a maintenance electrician in a plant (tool & die mfr.) I was preparing to move a small machine. It is a 208V 3ph buffing lathe. It's mounted to the top of a wooden workbench. It had a bus drop cable run to it.
Here's the kicker (could have been, literally)...
There was also a 4sq box mounted to the side of the bench with two duplex rec., for worklight, etc. The bus drop cable fed directly to the 4sq. with a short piece of cable between it and the machine. Phases A, B, & C were connected to red, black, & white on the cable going to the machine. (White wasn't even re-identified. I like to at least tape it blue, black, or red, something other than white...- some just say I'm anal... I say F**k 'em).
Anyway, the short piece of cable to the machine had the phases connected to the phases of the machine. Great, OK, the machine worked. Problem...or potential deadly problem... The grounding conductor in the short cable wasn't connected to anything. NOTHING. There didn't seem to be a grounding lug in the machine's cast J-box, but at least drill a freakin' hole and install a lug!!!
This is a machine that, due to the wooden bench, was isolated from EVERYTHING, not even remotely indirectly grounded or bonded to ANYTHING!! And to boot, the operators generally lay one of their forearms over the top of the machine to steady their hand as they buff the metal parts being produced. I could just imagine one of the phases touching the metal case, sitting there hot, waiting for a machinist to touch the machine's metal and something that was ACTUALLY grounded. ZAP!! 208 (or 120 to ground) potential, possibly through his heart.
Made me a little sick, and a lot pissed!!
The machine did not get moved until I did my best to provide grounding means in the machine J-box. Real freakin' hard, drill a 1/4in hole, scrape the paint, attach a lug. WOW, difficult! And ACTUALLY use the grounding conductor in the short piece of cable.
Oh... back at the 4sq, the ground from the feeder bus drop cable was being used... as the NEUTRAL (grounded) conductor for the two duplex receptacles, and for the ground of the duplexs... DOH!!!
Even as bad as that is, connecting Ground & Neutral together downstream of the service, the metal 4sq had no connection to the machine, due to the wooden bench, and the plastic-sheathed cable. At the disconnect (plug-in, fused disco on overhead 208/120 busway, the ground from the cable went to the Neutral lug with a jumper or fed straight through to the Ground lug.
This was the case (GND & Neutral bonded together) all through the plant, machines not grounded, white used as a phase conductor, neutral just used as a ground... Most machines that were grounded were grounded to the Neutral lug in the disconnect switch at the overhead busway. (With a jumper installed between the Ground lug and the Neutral lug). ?!?!
Anywhere they wanted to get 120, they would use one phase and ground. It's 120, right??
My only regret for joining the IBEW as an apprentice, is that I didn't stay to correct all the violations and dangerous conditions. I did let management know that the electrical connections were done in dangerous manners at many places in the plant. What more could I do? It would have taken years, possibly, on my own to correct all the screw-ups of 40 or 50 years worth of "Whatever works" ... "Just get it done" ... "Use whatever you can to make it work".