panel

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  1. J

    Uneven voltage on legs at main panel - troubleshooting?

    I have two main panels each 150amp breaker. House was built in 83 and lived here for 6 years no issues. About 6 months ago we had a power surge and our main ac fail (hard short) and tripped the breaker. Had the unit replaced but it seems since then we have had issues with lights diming and...
  2. azimlxp

    Solar panel rating measuring

    Few days ago, I bought a solar panel. It's rating was 6v and 450 mA. But when I measured with my multimeter, It shows around 5.25v to 5.85v and 18mA to 22mA in full sunlight. My Question is - Is measuring current around 18mA to 22mA for per hour or per second?
  3. P

    Sub panel grounding in a pool shed

    I have a Ge 125 amp 12/24 load center being installed in my pool shed roughly 80 ft away from the main electrical panel on the house. The plan is to backfeed the panel with a 100 amp breaker to function as a service disconnect. I will be running a 20 amp circuit from this sub panel to a garage...
  4. D

    Sub panel breaker amperage upgrade

    I need to install a charger for an electric car, which needs 60 amp breaker. My main panel has a 200amp breaker and services 2 sub panels, both via 60 amp breakers. My issue is that there is no space in the main panel for a 60A 240V breaker. I do have space in one sub panel (basement) which is...
  5. J

    Temporary service panel

    I have the transformer feeding my temporary service. 6-4 SO cord, 50 amp panel. Can someone please provide me with the code reference that stats you can't use SO cord to feed your temp panel? Thank you
  6. sajeel

    solar panel connect directly to consumer

    Have a client with solar panel setup with batteries fitted, they have asked if possible to store the electrical energy and then use for lighting, i was thinking of using a contactor or changeover switch as cannot feed both power sources into 1 lighting circuit all your replies and suggestions...
  7. M

    Solar panel calculation

    Hi First time poster, I have a 250w solar panel and a 90ah 12v battery. What size regulator / controller do I need please? Is it as simple as connecting the controller between panel and battery? Can you use standard flex? Thanks in advance
  8. J

    Metal panel locks on plastic enclosures

    what’s your guy’s opinions on metal panel locks on fibreglass/plastic enclosures. The reason for asking is I’ve seen a few of these enclosures fitted with metal locks and I know the likely hood of the lock being made live it extremely low but would you still class the locks as exposed conductive...
  9. N

    running wire under drive way to garage for sub panel?

    2ga is what i think i need for the runs. ill have 220v out there so ill do 3 runs for hot/hot/neutral and then ground. reading the current code it seems i need grounding rods out there as well as a dedicated ground from house to garage? is that right? can i sleeve cables for wire color change...
  10. G

    Solar Panel to operate camera

    Hello guys, I have 10W solar panel, a 7000 mah battery and 10A charge controller. there is 7 hours of light a day i have 3W little camera which supposed to work 24/7 continually. in direct clear sun, im getting around 20V from the solar panels (i'm measuring direct the panels with fluke) i...
  11. H

    a solar panel to start a PV inverter project

    A few days ago I purchased a solar panel to start a PV inverter project. Additional devices used are TFT LCD, rechargeable lithium batteries and microcontrollers.
  12. C

    Grounding at the panel?

    I'm running a few new circuits inside my home...working my way backwards (wiring from inside the house, back towards the outdoor panel). I have a large outdoor junction box, approximately 18' away from the panel, serving as an entry point / splice box as it leads cables into the home. Again...
  13. Designmen90

    Connecting ground to neutral in main panel

    Hello everyone ? It's totally confusing for me. It is my understanding that the neutral and the ground busbars should be connected at the main distribution board (schematic attached), but not at the auxiliary or sub panel. But why? I know that if I connect them in sub panel the current from...
  14. L

    Review my Plan for Sub-panels off of Sq. D Homeline Main Panel

    Was wondering if the gurus can critique and/or provide recommendations on my plan to install two sub-panels in a (50'x100') 5,000 sq ft steel building that I plan to use as a hobby woodworking and welding shop. I plan to install two sub-panels using two feeder circuits originating from the...
  15. Rockingit

    Panel indicator replacement to LED

    I've an M&E client who wants me to replace a whole load of 'tired' 5v panel lamps on BMS systems for LED. My spidey sense is pricking my brain and wondering if there's some relevant standards that apply to the type of lumination for safety etc etc?? I've yet to start looking but I'm guessing...
  16. Peach0032

    Panel / AED Heater Setup Advice

    I run a local charity raising cash to install defibrillators (AED's) around our small town in South Manchester - Most of the 14 we have installed are either in an old phone box or attached to a building with a suitable power supply available for the lockbox heater (supplies just enough heat to...
  17. B

    Which Panel Ground to Use?

    Hi folks, thanks for having this forum on the Web! I read up a bit on the following but still have a question about main to subpanel grounding: I have the main panel mounted on a telephone pole just below the electric meter that feeds my home. I also have a small wood framed building (I call it...
  18. Brunel

    INFO. ON SOLAR PANEL INSTALL

    Asking for a friend, moving into a house that has Solar panel installation. So far no documentation has been forthcoming from the seller. This is all I have so far. 1. diagram of the installation 2. photo of the supply trip in the consumer unit. No battery involved . My Q. as it is connected...
  19. D

    CAFCI/GFCI Gremlin on sub panel

    Ok, I've got an issue I can't figure out to save my life. Background: I'm putting in a 100a sub panel in my detached 2 car high bay garage. Other than a 50a and a 30a 240v circuit(s), everything is on 20a circuits with CAFCI/GFCI Plug on Neutral Homeline circuit breakers...
  20. J

    Industrial control panel

    Hi guys I have a few questions regarding my findings today and wondering if any of you could help one of the guys asked me to have a look at an electrical panel due to him finding voltage from a 24v PSU + to the earth of the panel and the - to earth each readings were 6vac which I was curious...

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