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  1. dogbob

    Are these boxes overfull? (USA NEC 2017)

    "It is tidy work, its just a violation and who knows what else they did that we haven’t seen." Yes, that's my bigger fear. Who knows what evil lurks in the dark corners?
  2. dogbob

    Are these boxes overfull? (USA NEC 2017)

    I found one more photo of that area, zoomed in (below). It gives a bit more detail on the number of wires going into the bottom and the stuffing. This box is behind the refrigerator in the kitchen. I think that the smaller box (shown above but not shown below) is power for the refridgerator...
  3. zoom.jpg

    zoom.jpg

    • dogbob
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    • Category: Electrical Videos
  4. kitchen.jpg

    kitchen.jpg

    • dogbob
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    • Category: Electrical Videos
  5. dogbob

    Are these boxes overfull? (USA NEC 2017)

    Great advice, detailed and helpful. Thank you. Yes, I've read 316.16(A) and 314.26(B), and that's why I was concerned. But I'm just a tinkerer and this work was done by a professional electrician, so I wanted a real opinion before raising my concerns. But they will be drywalling soon and...
  6. dogbob

    Calculating the needed power and compatible driver specifics?

    If you want to power all 12 at once, you might as well put them all in series and drive them from a current-limited power supply. 5 watts at 3.5V is 1.4 amps, so you will be running the total string at somewhere around 1.4 amps for full brightness, less current for less brightness. 3.5V * 12...
  7. dogbob

    Are these boxes overfull? (USA NEC 2017)

    I am a homeowner-to-be. This is in USA, and must follow NEC 2017 (this state has not yet adopted 2020). The builder has done rough electrical and it concerns me, but I am not an electrician, so can't make a definitive call. In the attached photo, the left box appears to be a 32 cu in box (is...
  8. Overloaded boxes.jpg

    Overloaded boxes.jpg

    • dogbob
    • Media item
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    • Category: Electrical Videos
  9. dogbob

    The breaker on the right trips after anything from 30 seconds to an hour. I have only two led lights on this circuit

    I'm not certain, but it appears to be a ground fault breaker. If I'm right, it is a special safety breaker that trips when there is overcurrent or when there is leakage to ground. I've seen situations where ground fault breakers will trip after someone cleans the area with a spray cleaner and...
  10. dogbob

    Installing multiple USB charge ports in a vehicle

    Common USB ports are 5V/0.5A (2.5 watts) each. I assume that's enough for your needs. You can buy 12V to 5V USB adapters from many places, including ebay, amazon, etc. The hardest part will be installing the ports and making them look good. For each port you install, you'll need 2.5 watts...
  11. dogbob

    Bathroom Fan / Light Combo Question

    You need a tester, preferrably a volt meter that is also a continuity tester. Turn off the breaker (safety first!) Remove all wirenuts and separate all wires. Draw a sketch of the wiring and use the continuity tester to figure out which wire connects to which. Then it will be easy to reconnect...
  12. dogbob

    3 of 6 GX24Q-4-pin type pots lights went out together any ideas?

    You'll have to look inside to know. Make sure to turn off the circuit breaker before opening. :-)
  13. dogbob

    3 of 6 GX24Q-4-pin type pots lights went out together any ideas?

    Yes, if more than 4 years old, those are compact fluorescent lamps with an external ballast. There are replacement lamps with the same base that are LED and require that you bypass the ballast (rewire the lamp). If I had a bad lamp or a bad ballast, I would replace it with an LED. You can...
  14. dogbob

    Faulty electrical socket

    Sure sounds like a bad connection. First step is turn off the breaker, open the box containing the dead outlet, and visually look at the wiring. If everything looks good, do the same inspection of each box on the same breaker (WITH BREAKER OFF), because the power to that box is probably...
  15. dogbob

    LED Strip lighting

    My suspicion is a bad connection in the wiring. I've had problems with the connectors on the ends of strip lights. My symptoms were similar to yours. Soldering is reliable, but the clamp-on connectors can be flaky, even from good brands.
  16. dogbob

    How does one HALF CUT solar module affect the other modules in the string when it is partially shaded?

    Some PV systems use microinverters, one per panel. If you have one of these systems, then shading one panel will not affect power produced by another panel. Some system simply put all panels in series and feed a large inverter. If one panel gets shaded, all panels lose output. Some systems...
  17. dogbob

    How to connect IP65 LED flood to wall box

    I'm looking at installing an imported IP65 LED floodlight with CE rating on the back of my house. I guess that IP65 + CE makes them relatively safe. This one has a cable gland and 0.5 meter vinyl jacket cable coming out of the back. Here's a photo of the back of this light, from the dealer's...
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