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grounding
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  1. Electrical
    Hey everyone (1st time poster), I need some help with my electric. I have old wiring that isn’t knob & tube but is prior to ground wire being in the wiring (I think?). I’ve attached a pic of the wire but I think it is ungrounded 14 gauge copper. For sure not aluminum or anything else. I have...
  2. Electrical
    Hi! I'm willing to build up a network within my residential house which includes outdoor equipment for WAN access. And I'm failing to figure out the best way for me to make it work reliably, especially in terms of lightning (EMI) protection. So let me introduce all the necessary info regarding...
  3. Electrical
    I am doing some re-wiring in my detached garage. The garage has a sub-panel. The sub panel power is supplied by a 10 gauge wire ran underground through conduit from the main panel in the house (50-60 feet away). The 10 gauge feed to the sub-panel comes off of a 30 amp breaker in the main panel...
  4. Electrical
    There is a mid century house. Appears to have two conductor ungrounded wiring. The original outlets are two prong unpolarized. On the spectrum of: Code compliant...might work but better not...OMG NO!!! can you install a three prong outlet to a two conductor wire by jumping the neutral to...
  5. Electrical
    I recently had a master electrician advise me to connect the grounding systems of two houses with different services on the same property in order to enhance the overall grounding system. Wouldn't this also connect the two services' neutral systems, since they are both bonded at their...
  6. Electrical
    Hi there! We just posted a new article on this topic of swimming pool grounding and bonding. We cover the basics of each (they are not the same) but the end story is basically that this is normally required to NOT be a DIY project and most local electrical codes require licensed electricians to...
  7. Electrical
    I am installing an outdoor sub-panel servicing two outdoor (230V) motors 300ft from the main service panel. For this application the code is calling for an insulated grounding conductor from the service panel to the sub-panel (and bonding all the boxes), all of which I have done. However, I do...
  8. Electrical
    I am installing a 100amp subpanel in my attached garage. The panel is 45 feet (actual wire length) away from the 200amp main panel which will be running through a finished basement against an outside wall. What size wire should I use? I presume that the ground has to run back to main and there...
  9. Electrical
    So my water pipe where it enters the house is apparently bonded to something in the floor with (old, oxidized) plumber's tape? It goes to some metal ring that is attached to the floor. What would this be? There is a conductor that comes into the breaker panel which is attached to the neutral...
  10. Electrical
    Greetings all, I'm new here so please bear with my inexperience. As the title of this thread suggests I would like to know if there are any earthing solutions for renters. I have been renting for a long time and where ever I go, there is an absence of a good permanent earthing solution...
  11. Electrical
    Hello everyone, I am having my copper plumbing changed over to PEX in the near future. Currently, my panel is grounded to the supply waterline (copper) with a jumper over the water meter. When my waterlines get changed over, is it possible to ground to my cast iron stack? If not, can someone...
  12. Electrical
    When is a bonding bushing required? See picture attached. Should I use a plastic bushing or a bonding bushing in this situation? Three #4 wires and one #8 wire (for ground) are entering a subpanel through 1" PVC conduit with a PVC male adapter and a locknut. Thanks
  13. Electrical
    (note: also asked on stack) What I am looking for is guidance and honest evaluation. I'm not afraid of being wrong. I want to save some bucks and learn some things, without blowing myself up. So please tell me if I'm doing something dangerous, and preferably please tell the section of the...
  14. Appliances
    Hello all! I'm wondering if someone can help me out with what might be a really easy question. I installed a new motor into my GE gas dryer. All was going alright until I ran into an issue where I didn't know where to attach the grounding wire. The instructions I was following show a place to...
  15. Electrical
    Hello all, I am renting an old house, I have started automating(SmartThings, Google Home) with smart outlets and smart switches. I was trying to change a light switch with a smart switch(GE Z-Wave Wireless Smart Lighting Control Smart Switch, On/Off, In-Wall,Works with Amazon Alexa, 12722...
  16. Electrical
    Hi, I'm planning to run some EMT conduit sleeves with romex to protect the romex from one wall to another wall. I'm also planning on running some (separate) EMT and metallic raceway for ethernet cables. (NEC does not require the EMT sleeves to be grounded and I am unsure whether the EMT and...
  17. Electrical
    I have a general question about grounding rods: If a residential dwelling is located in an urban setting, such that the main panel is at the front of the residence, and that the front of the property is directly joined with the sidewalk and street, and the grounding rods are installed inside...
  18. Electrical
    In a 1953 14-2 wired home, an updated 100 amp panel has been installed with a braided copper ground wire running from an outside buried copper rod. No other bare ground wires are attached to the section where this Main Ground is. I have run a single 14 awg wire from that section to a junction...
  19. Appliances
    Hello, I noticed today that there is a small ground wire coming from both washer and dryer chassis (connected to chassis with a screw) to a water pipe nearby. Since both are already grounded through their plugs (both are 3 prongs, dryer is gas, and all the receptacles they are plugged into are...
  20. HVAC
    My HVAC contractor says the installation of the line set between the air handler and the condenser outside is complete but he has not grounded the lines. I wonder what happens if a lightening strikes the condenser, which, by the way, is located on the roof of the house (so not directly...
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