GROUNDING
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- เผยแพร่เมื่อ 22 ธ.ค. 2023
- In this video, we will discuss the importance of proper grounding/earthing for your home and how it can help keep you safe. Learn about the benefits of grounding/earthing, including preventing electric shocks and ensuring the longevity of your electrical appliances. By implementing the right grounding/earthing system, you can have peace of mind knowing that the safety of electricity users in your home is assured. Watch this video and don't forget to share it with your friends and family for a safer living environment.
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Awesome tutorials as usual
So what type of System does Ghana use ? TN -S , TN -C or TT ?
TT
I'm here again. My long awaiting topic. Thanks for sharing it with us...
Yeah, there's a final one coming it will drop by next week. I think that, with this one and the other previous ones should clear every doubt. Thanks for your patience.
@@obloni_Electricalwow! Thanks Sir
@@obloni_Electrical
After watching the video here are because:
1. When burying multiple earth, what should be the distance between each one of them
2. You said multiple eart should be done parallel to the main earth. How is that done. I don't get it.
3. Let assume you have are working on 8 stores, each having separate energy meters, but they are all on the supply phase. Is it good to bury individual earth close together. If is not not on the same phase what should be the distance between each one.
Just to clarify @1:50min you mentioned that for an rcd to operate due to earth fault, there needs to be a low earth resistance. This is correct for MCBs during overload and short circuit condition but does not apply to rcd or rcbo as they do not need a low earth resistance to operate if theres an earth leakage. Thats why rcds / RCBOs are required on TT systems due to the unrealibility of the earth mass. Rcds/RCBOs measure the current in vs out and trip accordingly using a mechanism inside the rcd leaving out the earth completley. Great video. Keep up the great work!
thanks very much my dear friend, for your contribution.
But please the statement @1:50min is: "For protective devices such as RCDs to operate effectively during an earth fault, this path must allow a substantial amount of the fault current to flow back to the supply source"...
The path referred to therein is the earth fault loop path, which includes the CPC, the earthing electrode, and the earth(because we are talking about TT system). I went ahead to say that "if this path is not able to complete, then whatever protective devices you have in your circuit will not operate, including some RCDs"
Also, I wasn't only talking about RCDs. I talked about CPDs in general and emphasized on RCDs appropriately. Thanks.
I am working on a video to practically demonstrate how RCDs will behave in the event of an earth fault, when the earth fault path is not continuous.
I will also explain when the RCD doesn't need Earth to operate, and when it can't operate without Earth.
Yes, so RCDs can operate without earth when there's an imbalance in the system in certain cases, BUT RCDs will not operate in the event of an earth fault when there is no Earthing for the installation (in a TT system).
Thanks again.
Thanks for clarifying that for the audience. This topic is of great interest to me.
@@badrubakari1418
Very grateful for your input. thanks
Thank you sir
This so awesome, I have a question for you sir, what causes neutral wire to be giving electrical shock and how can it be sorted out? Thanking you in anticipation sir.
Sure! Usually it's an open circuit in a part of the neutral line that causes that. It will be very clear to you when I explain with a video. I will do that soon. Thanks
@@obloni_Electricalwow I can't for the video sir
After watching the video here are because:
1. When burying multiple earth, what should be the distance between each one of them
2. You said multiple eart should be done parallel to the main earth. How is that done. I don't get it.
3. Let assume you have are working on 8 stores, each having separate energy meters, but they are all on the supply phase. Is it good to bury individual earth close together. If is not not on the same phase what should be the distance between each one.
Please send your specific request to WhatsApp +233209323669
Please is 6 Ones ok for earth risistanc
I think I addressed this same question already but again, That depends on several factors:
1. Local regulations: Electrical codes set the maximum allowable resistance for earth electrode resistance. For example, some local codes specify a maximum of 25 ohms in which case 6 Ohms is okay . So please consult your local electrical regulations.
2. Application: Some critical applications, like lightning protection for substations, require much lower values, around 5 ohms or even less.
Also note that these local codes can be reviewed at any point in time. The most important thing also is for you as an electrician to know why the EARTHING system
is very important, and how it can be properly done for safety and proper operation of the insulation. Please you will need to watch these other videos on earthing. Follow the se links :
th-cam.com/video/wWO2Z-gm-HA/w-d-xo.html
th-cam.com/video/Njr3LXOyEyI/w-d-xo.html
th-cam.com/video/dYPBiVqkBFQ/w-d-xo.html