Originally Posted By: jfarsetta
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The course is prety much finshed. Its pretty good, and starts with the discovery of electricity by the Greeks. It progresses through some basic physics, including why some thngs are conductors, while others are insulators. It explains Ohms law, and parallel circuits. It speaks to electrcal panels, sine waves, alternating current, and junction boxes. I think its abut 65 pages long. My head really hurts ![icon_wink.gif](upload://ssT9V5t45yjlgXqiFRXL04eXtqw.gif)
It includes some info on Federal Pacific, and aluminm wiring. It steps a newbie through some of the things to look for durng an inspection. It has a photo segment, which is not in any way supposed to be more than a training excersise in some of the more typical stuff to look for. It contans a checklist outline, a glossary, and a short quiz at the end.
It also speaks to common safety practices.
The bottom line is that this course in no way teaches you everything you need to know. It was developed to fill a void we have. That is, there is no way to stop an unqualified person from performing an inspection. That being said, it is important to try and provide a good foundation of knowledge from which to build. It's purpose is also to get folks THINKING. This, above all else, is the most critical. Everythng needed to be known to be a competent inspector will not come out of a magic box, an instrument, or a textbook. It is acquired knowledge, attained from a variety of means.
It is the first in a series I am writng for Nick. Ths one is open to all. The idea is offer all subsequent on-line courses to NACHI members only. It is not an advanced course, so dont jump all over me. Realize who the target audience is intended to be. If nothing else, the physics and electrical theory portions are interesting, and some of the info may be helpful to all. My own theory is that if you can visualize how something works, and why things happen, you can apply that theory in the inspection process. It helps you to be sharper,and assists you in UNDERSTANDING how things work, and why things can fail. This equates to closer examination of items.
An electron is like a pool ball. One ball smacks another, and sends it on its way. Most of the energy transferrs from one ball to the next. Hence, ball#1 stops moving, and ball #2 starts moving. However, some energy is lost in the transfer. In the movement of electrons, what does this lost energy manifest itself as?
Now, think about a #14 wire, conected to a 20amp breaker. Visualize what is going on...
Illigitimi Non Carborundum
"Dont let the bastards grind you down..."