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  1. Lighting Design
    I'm configuring a lamp, and need to get the socket/bulb into a tight area, I'm familiar with mechanical engineering and have designed an attachment that would work awesome with a dc male/female adapter. There'll be 4 edison style light bulbs (4 W each). I was going to wire the male end of the...
  2. General Electrical Discussion
    Lighted-when-off switches seem to have the light close the circuit when the switch is open. That said, If I wanted to protect against a short circuit, can I insert a 2nd load between a circuit in series? For example Power supply + to Main Load + ... Main Load -- to Dummy Load + ... Dummy Load --...
  3. General Electrical Discussion
    The chairmen of my neighborhood had asked me to look at a solar system to find out why the sign light is barely working on days where there is not as much sun. I have not worked on solar systems like this before. It is quite high tech. The package comes with the solar panel, Controller box...
  4. PLCs, VFDs, Motors and Controls
    I've got a practical bench test coming up and I know I'll have to megger a DC motor which (I have heard from prior test takers) has 9 unidentified leads coming out of it. No big deal but I was wondering if anyone had practical advice on differentiating the interpole leads from the series and...
  5. General Electrical Discussion
    What causes the difference in the ratings of AC and DC electrical equipment? Is there a specific formula for converting the ratings for the two? I'm just curious.
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