How to Test Ground with Multimeter
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- Опубликовано: 22 авг 2024
- How to test ground with multimeter
Hey guys, in today video, I will explain you whole process how to test ground with multimeter and also show you 2 ways how to find ground wire with multimeter. Enjoy the video.
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00:32 How to find ground wire with multimeter
1:04 How to test ground with multimeter
1:25 Step 1: Insert your probes into the multimeter
1:55 Step 2: Set multimeter to ac voltage
2:18 Step 3: Measure voltage between live and neutral
2:50 Step 4: Measure voltage between live and ground
3:14 Step 5: Measure voltage between neutral and ground
3:41 Step 6: Evaluate results
#groundwire #multimeter #multimetertutorial
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I had to watch a bunch of useless videos till I found this one - it's right to the point! Thanks! 🙏
Thank you for making these straight forward explaination videos.
So what if you don't have a good ground connection? Would you get something other than 0V ?
Yes
There should be NO potential difference between neutral and ground (0V), but if you read a potential difference (volts) between neutral/grounded (white cable) and ground"ing" (green cable), then you have an ground fault. This mean the hot conductors is making contact w/ the "grounding" conductor (green/yellow or bare conductor.) If there isn't a substantial amount of current OR no GFI protection to trip the circuit, electricity will pass from source wire to earth wire w/out impedance creating a shock hazard. The grounding cable (green) is not only tied to earth but bonding to the house and all electrical devices and metal components. Depending on where the fault occured, will shock or kill someone touching any electrical devices or metal components downstream in your home. Need to be fixed immediately.
How do I differ the neutral from the ground? Assuming my colors are messed up. The readings vs Live are the same for neutral and ground…
that is also my question. if you follow math , it is a 50/50 chance ffs ...
Your neutral is a conductor that operates at ground potential.. your neutrals are bonded to ground they are the same.
Neutral/Ground = White or gray
Grounding = Grn OR Grn w/ yell stripes OR Bare
Somehow if this is wrong or insulation is removed not to determine color code. The circuit you are testing, minimum 3 conductors (Hot, Neu and Ground), 2 of 3 conductors will (or should) read 0v between two of them. This will be your Neu and Ground wires. At this point, you will need to establish where both of these cables land/terminate in the elec panel to determine which is the Neutral conductor and Ground conductor.
Neutral/Ground = White or gray
Grounding = Grn OR Grn w/ yell stripes OR Bare
Somehow if this is wrong or insulation is removed not to determine color code. The circuit you are testing, minimum 3 conductors (Hot, Neu and Ground), 2 of 3 conductors will (or should) read 0v between two of them. This will be your Neu and Ground wires. At this point, you will need to establish where both of these cables land/terminate in the elec panel to determine which is the Neutral conductor and Ground conductor.
So how do you test and tell apart ground from neutral if you don't trust the color codings?
By measuring like in the video you just watched
What if the grounding is not in the ground. You would still get the same results
Excellent information 👌 Well explained 👏
You have exact same multimeter as I do lmao.
What measurements should one obtain, if the earth pin is not connected?
^this is the critical question. The vid shows what a good earth looks like, what does a bad one look like, what would be the difference in the readings?!
Alex, how would I test to see if a "earth grounding stake" with a wire that comes in the window and connects w an alligator clip to a grounding sheet inside to see if it conducts or not?
My readings:
hot +neutral is 120
Ground + hot is 70
Neutral+ground is 50
I live in the US.
Everything was fine until I was replacing a wall outlet. Outlet was fine according to my outlet tester. The existing outlet was just old and the plastic was breaking off. Not sure where to start troubleshooting or if I caused this. When I was unplugging the wires, I did get a spark as I turned off the wrong breaker (I was arrogant and didn't test after turning off breaker).
Most likely because that ground wire is disconnected somewhere inside the wall or the ceiling. The magnetic field induced by the live wires makes that "free ground wire" go live as well despite there is no direct contact between the ground conductor and the neutral/phase conductor (known as ground fault). You can tell it's not a ground fault as the N-G voltage is much lower that of the N-P voltage. De-energize your entire house and check the continuity between that particular ground wire and the ground wire from another room where such issue does not exist. My guess will be that there is no continuity.
Thank you!
You're welcome!
If neutral is the same with ground, then ur measurements will show the same results… this video is useless and dangerous.
When I visited Philippines, I was surprised that they have 110v out of phase on the live and neutral. Which sums up to 220v. In Philippines, (at least on the place I visited)
Line neutral 220v
Neutral ground 110v
Line ground 110v
weird.. there may be no ground wire
@@yosefnegussie8790 yes. Majority of the houses there doesn't have ground on the outlets
@@harveynorman8787 Developing country. We have a 75 year old cabin in Montana with aluminum wiring and no ground. The entire thing is wired with just a hot and neutral. No ground rod either.
I have 7.5 V between Live and Ground. Is this OK? or does it mean something?
No
why there a voltage on multimeter between live and earth on plug socket because earth can touch live is it?
My audio interface was giving me electric shocks, I thought it was ground issue. I found this video, and it stopped😐
Have 2 Bain Marie at my restaurant hall and few appliances kitchen.
But whenever I turn on one of the Bain Marie there is current flown over the fridge: please see my observation:
Switch ON :
Green - Test Pen have light
Live - Test Pen have light
Neutral- Test Pen have no light
Switch OFF:
Green - Test Pen have no light
Live - Test Pen have light
Neutral- Test Pen have no light
❤❤❤
The solution
😊
Can I test 700V with 600V rated Multimeter?
If you want to kill yourself you could
No