@richardbrand Said: post on
I learned in 2010 what I was taught in K thru12 was wrong how electricity works.... Four years of electrical apprenticeship training I was taught the same wrong crap
Nevertheless, it would be helpful if you could remember how to apply Ohm’s Law, and how power is calculated in electrical circuits! Fortunately, when wiring houses, you don’t need to work things out from first principles, because engineers have done this for you and experts have written building codes to follow.
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I know quite well how to apply Ohm’s Law. If you could understand what you read it might help. I am beginning to think you are an idiot...
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Talking of government, a while ago I sold an upgrade to The Canberra Hospital’s digital imaging system, which was the source of all patient records. I included a big uninterruptible power supply (UPS) with rectifiers, batteries and inverters. The hospital insisted that their own electricians do the installation. When I inspected the finished system, there was a computer room with hospital grade power outlets, red for the high-availability outlets, beautifully run back through a distribution system to the UPS. But the UPS only had one cable connected - the output. The electricians (we call them sparkies in Australia) had "forgotten" to run mains power to the UPS.
Rambling gibberish. What’s your point? You are a Big Man in Australia or the electricians are incompetent? Nobody, is that stupid. You know the electrician(s) may have though the batteries were special and provided endless energy power to the UPS. There is food for thought...
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My partner’s son leads a crew working on high voltage transmission lines running hundreds of thousands of Volts, but in Australia he is not officially qualified to install a 240-Volt outlet in his own home! That would be against government regulations.
Your partners son is a Lineman. I am sure he is qualified to change out a simple 240V outlet in his own home. It’s not brain surgery. 
As for my qualifications I hold a current up date Masters-Class A License. Before retiring I worked over 42+ years exclusively in the electrical wiring of Commercial, Hospitals, and Industrial facilities. Just one of the Industrial projects I worked on was a new, (now owned by ADM), Soybean Oil Refinery, One the largest in the Midwest. I was the General Foreman in change of, on average, 75 to 100 IBEW Electricians on the project. Not bragging, my expertise is in Layout. I spent more time in the Mechanical contractors trailers looking at their prints than my trailer looking at the electrical prints. Mechanical has priority to where their stuff is installed, per the mechanical prints. ( Authority found in the job spec book.) Electrical installations, below them. The electrical contractor has to move his stuff if his men installed it where a mechanical contractor’s stuff is meant to be installed. Time is money!
Hospitals... I worked for years in the largest privately own hospital in My State. (Not employed as an employee for the hospital. I worked for an Electrical Contractor. You name it, I did it. I was in charge of wiring the power to feed MRI Rooms, Cat Scan rooms, Countless numbers of X-Ray Rooms. I was in charge of any gutter ways needed for the equipment installations. I was in charge of installing the overhead ceiling heavy gauge steel unistrut system that supported the heavy X-ray equipment that hung from the ceiling. Level with-in a + or - 1/8". Some X-Ray units that used a big "C Arm" X-Ray equipment costing $1.5 million dollars + (probably $2 million today) the strut had to be solid with 100% no movement.
UPS? Installed them too. I never forgot to feed the input to one of them though.
Emergency Power Generating Systems installed them too.... Yep and everything associated with them. Going from memory, there were seven Large KW 480V 3ph 4wire WYE generators that were located in various locations throughout the hospital complex.
The Hospital has a Co-Generation Power system. (No longer used.) A $10 million dollar white elephant the brain child of a Mechanical Engineer that worked in house for the hospital... You know come to think about of it I bet you and him would have got along great. He was a want to be EE. We butted heads a lot of times over the years he was there before he finally was fired.
3 phase 13,800 volt distribution power systems for the hospital complex. HV switchgear, feeders the works. Did it all.
Several Big KVA Oiled filled step down 3Ph 13,800V to 480V 3ph 4 Wire WYE power transformers. And a few oil filled 3PH 13,800V to 120/208V 3ph 4 wire WYE Power transformers.
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I’m going to stop here. I think you get the idea for my electrical hands on practical experience qualifications. Is mine bigger than yours? I got more if you need it....
This is yours.
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Sorry guys for getting off topic of the thread.
