Re: student's concern
Most jurisdictions have an experience requirement in addition to passing an exam prior to receiving and electrical license. I have taught classes to prepare students to take the Maryland Master Exam for about 15 years. In my experience the hands-on training that a person receives working on the job does very little to prepare a person for the exam. In our area the exam is based on electrical theory and the National Electric Code. Most of the students that I have taught have had little exposure to the NEC and no exposure to electrical theory unless they have gone through some sort of apprenticeship training program. It appears from your post that perhaps English is not your primary language. If this is the case, and you plan to take an examination in English, then you will need to concentrate on your reading an comprehension skills. The NEC is not an easy document to understand, even if English is your primary language. Many of my students want me to "educate them". I cannot do this. I can answer your questions and give you the tools that you need to educate yourself regarding the trade in general and the NEC in particular. The student will then need to invest the time and effort needed to master the material. I can't "pour it into your head". I have had one student take my course three times. He attends all of the classes, but does not complete any of the assignments, or spend any of his own time studying. He then can't understand why he keeps failing the Master Exam. You need to spend time "in the code" learning to read and interpret it for yourself. No one can do that for you. Forums such as this are an excellent source. Look up the answers given and see if you agree with the writer's interpretation. Take Mike Holt's on-line quizzes. Look up the answers and try to understand the intent of the code. There are no shortcuts, you must invest the time and effort. A few years ago, my mother-in-law got her first computer. Then she started looking for someone to "teach her to use it". We finally gave her some basic information and convinced her that she would learn the rest by just using it. She now can do most anything she wants, but it was through trial and error and actually using the computer that it was learned, not by having someone show her which key to press for every step. The same is true of the NEC. You can get the basics from a class, but most of the work you will need to do yourself.