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Nairaland Forum / Nairaland / General / Properties / Importance Of Proper Earthing And Bonding System In Electrical Installation (32742 Views)
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Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:46pm On May 15, 2015 |
In electricity supply systems, an earthing system or grounding system is circuitry which connects parts of the electric circuit with the ground, thus defining the electric potential of the conductors relative to the Earth's conductive surface. The choice of earthing system can affect the safety and electromagnetic compatibility of the power supply. Many people don’t take the earthing and bonding serious in electrical installation. Earthing plays a wide role in electrical installation and these days some sensitive equipment we install in our various homes and offices. My father’s house electrical installations was done by old electrician called old school electrician(Baba sikira). It was a surface system of wiring(all the cables were run surface) and tiny cable were used for the earth that goes straight to the ground which form their own earthing and bonding of the electrical installation. NOW TO THE FACT: Anytime there was thunder strike when it rains, it normally affects our TV and some sensitive equipment in the house. Road side electrician (called RADIONIC in my local language) normally repair our TV then. So anytime its about to rain my father will off the TV and disconnect the plug from the wall so that thunder strike will not affect it again. So everything opened to me when i was in university that when a house or structure is not properly earthed, sensitive equipment are in danger. In contrast, a functional earth connection serves a purpose other than shock protection, and may normally carry current. The most important example of a functional earth is the neutral in an electrical supply system. It is a current-carrying conductor connected to earth, often, but not always, at only one point to avoid flow of currents through the earth. The NEC calls it a grounded supply conductor to distinguish it from the equipment grounding conductor. Other examples of devices that use functional earth connections include surge suppressors and electromagnetic interference etc. People use an earthing system mainly for these applications: • To protect a structure from lightning strike, directing the lightning through the earthing system and into the ground rod rather than passing through the structure. • Part of the safety system of mains electricity, preventing problems associated with floating ground and sky voltage. Check the pictures below. For your Electrical, plumbing design drawing and installation. Contact us For further info call 08033643191 or 08051750560 Whatsap: 08033643191 Pin: 24ED26C9 Email; atope23@live.co.uk, topselg.engineering@gmail.com You can visit our thread: https://www.nairaland.com/1804476/complete-package-design-drawing-electrical https://www.nairaland.com/1233943/contact-us-electrical-mechanical-plumbing/9 1 Like
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 4:18pm On May 15, 2015 |
This is the real earthing system that comprises of: Charcoal Industrial salt Copper Earth rod More pix to come............... 1 Like
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by peaceland(m): 4:32pm On May 15, 2015 |
Please extend the discussion to the cost aspect too sir. and when best to be done thank you |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 7:45am On May 17, 2015 |
peaceland: The cost vary from one location to the other. Numbers of earth rod determines the cost of earthing. The most important is to get the value < 1-ohms(I.e less than or equal to 1-ohms). Final figure determines the cost. Thanks |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by peaceland(m): 5:13pm On May 17, 2015 |
topsy23:so as not to confuse me sir can you do a sample exposition of the prices using a real case example someone gave me 700k bill for lightning protector for a bungalow which I consider high Thanks sir |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 8:40pm On May 17, 2015 |
peaceland: 700k? Habaaa, too much my brother. For a normal earth pit below is the breakdown. Earth rod(original) like 7length @ N4.000/Length Earth coupler 8nos @ 600per one 4,800 Earth clamp @ N1,200 Industrial salt 1bag @ N6,500 Charcoal @ N500 or 1k max Earth cable 30m(depend on the distance) @ N7500 Lightning Arrestor Spike is about 8,000 Copper tape is N1600 per meter and since the building is a bungalow u will need up to 15m. Clip for the tape @ N150 per u will need 6pcs. I hope this solve the problem bros. Thanks. 5 Likes |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 9:05am On May 21, 2015 |
EARTH PIT complete with charcoal, industrial salt, earth rod, and bare copper cable to link them together 1 Like
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by peaceland(m): 11:34am On May 21, 2015 |
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 2:44pm On May 21, 2015 |
peaceland: Bros, is your building an office space or bank? why is your installer proposing INGESCO PDC 3.1 -ESE Air Terminal for your project? Do you have any sensitive equipment to install? This product is too expensive for a bungalow project of yours. see the attached picture of what your installer is proposing to install for you. Tope 1 Like
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by peaceland(m): 5:02pm On May 21, 2015 |
topsy23: Thank you Also, what type of charcoal - the common type that boli people uses - that will quickly decay in the ground. Also the salt, will it not leach away from the location? most houses these days don't seem to have this feature, I guess this is based on the believe that PHCN wiring and new methods of wiring are okay; if not okay why are people not doing it? how deep should the hole be and what determines the location - e.g can it be situated close to a borehole or sewage/septic tank? Thank you |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 5:29pm On May 21, 2015 |
peaceland: The charcoal is the normal charcoal but the salt is not cooking salt(an industrial salt they call it marconite in engineering terms) The best is to prevent your house from lightning, surge and the risk of electric shock when touching the metal in the house. I have been to a house in which I received electric shock when I touched the kitchen sink.it shows that the house is not properly earthed. Let the earth pit be a bit far away from borehole and dimension should 1000mmLx1000mmBx1200mmD 1 Like |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 10:44pm On May 24, 2015 |
We are here to make your installation the best. Call us today. Thanks 1 Like |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by egin(m): 2:16am On May 26, 2015 |
Topsy, thanks for the info. |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by segcymoor(m): 7:42am On May 26, 2015 |
peaceland:.....Why can't you kuku let him do the job for you? 1 Like |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by mufutau55(m): 4:06pm On May 26, 2015 |
segcymoor: True o. I support. And forget about those giving you wrong quotations... give it to the expert. Hajji M. 1 Like |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by peaceland(m): 9:00pm On May 26, 2015 |
mufutau55: segcymoor: mufutau55:@ segcymoor, @ mufutau55 Thanks sirs actually we are already discussing this and another related service Just want to ask questions that I have and believes others too may have Thanks 3 Likes |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by mufutau55(m): 9:11pm On May 26, 2015 |
peaceland: Good boss. I trust you oh! Hajji M. |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 7:22pm On May 27, 2015 |
@ segcymoor, @ mufutau55 Thank you sirs, discussion is on-going as per the job and other services. Thanks |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by mufutau55(m): 7:26pm On May 27, 2015 |
topsy23: It dey sweet me when I hear those kind thing for Properties Forum here... I don rest my case. Good work. Hajji M. |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by twinskenny(m): 9:05am On May 28, 2015 |
topsy23: installation cost not included |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:10pm On Jun 07, 2015 |
Recent pictures of earthing system done for a Nairalander. Earth rod and digging
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:13pm On Jun 07, 2015 |
Driving the earth rod to the soil
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:17pm On Jun 07, 2015 |
Bonding of the earth rod together to form the bonding system
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:20pm On Jun 07, 2015 |
Pouring of Industrial salt(marconite) and charcoal to complete the earthing system.
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 3:25pm On Jun 07, 2015 |
Complete earthing and bonding system
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Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 9:15pm On Jun 13, 2015 |
twinskenny: Boss, you are right excluding installation cost. That's just the cost of materials for one earth pit. Numbers of earth pit to be dug will depend on the soil. |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 5:43pm On Jun 16, 2015 |
egin: You are welcome sir |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 8:12pm On Jul 06, 2015 |
Call us today for your Electrical and plumbing installation |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 7:30pm On Jul 30, 2015 |
Call us today. |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 1:48pm On Sep 17, 2015 |
Call us today and I have a great day....... |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by topsy23: 7:24pm On Sep 23, 2015 |
Call us today...... |
Re: Importance Of Proper Earthing And Bonding System In Electrical Installation by ironheart(m): 9:06am On Sep 25, 2015 |
great job you doing, keep it up. |
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