While I sympathise with what you are saying, it seems it is not unreasonable to expect the person asking the question to do a little of their own research as well. Even if that means doing a quick google, or just posting a reply saying "WTF does that mean?". For some technical subjects (like electrical) where precision in terminology is important, it can be very hard going to type out fuller versions of MCB, CU, or CFL every time they are used.
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