₦airaland Forum

Carmal90:
Hello,

I have roofed my building without a lightning arrester, can anything be done to rectify this?

And when is the appropriate time to do the earthing?

Thanks

Did you get my message

Sir, my electronics just affected by the lightening/thunder few days ago. Can earthing also use to arrest thunder because it was done with the same process as yours in my present but the difference is the salt used we use the one for cooking. Pls advise

oduncojamaica:
Sir, my electronics just affected by the lightening/thunder few days ago. Can earthing also use to arrest thunder because it was done with the same process as yours in my present but the difference is the salt used we use the one for cooking. Pls advise

If you have a good earthing I think you are covered to some extent but not fully protected

Let's be part of your your project

Protection from power surges: Earthing can protect from sudden excessive surges, it also provides protection from lightning strikes. Any lighting strikes on the exposed metal or received through another path which is connected to earth line get discharged directly to earth.

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Topsy23 wishing you a Merry christmas and a prosperous healthy 2023 ahead.

Bros, I am thinking of installing a proper earthing and bonding system. can you please give me an idea of what it will cost (material and labor) from your experience.

I also had a quick review of the wiring and it doesn't appear there is any isolator before the DB. Do you have quality isolator for such a circumstance. What I'm thinking of achieving is to be able to shut of grid current (A) before it reaches the DB. This will allow maintenance work/etc to happen on the DB without risk to any electrician.

finally the DB in the house is a very dated "MEM" and I am thinking of adding appropriate breakers like a RCBO or RCCB to run off the old DB. Even If you cant do this personally, can you review, advise and supply appropriate quality configure. I am happy to discuss my thoughts with you.

Oga I forgot to add that it is a single phase Grid Setup. Thanks

mangolpupa:
Topsy23 wishing you a Merry christmas and a prosperous healthy 2023 ahead.

Bros, I am thinking of installing a proper earthing and bonding system. can you please give me an idea of what it will cost (material and labor) from your experience.

I also had a quick review of the wiring and it doesn't appear there is any isolator before the DB. Do you have quality isolator for such a circumstance. What I'm thinking of achieving is to be able to shut of grid current (A) before it reaches the DB. This will allow maintenance work/etc to happen on the DB without risk to any electrician.

finally the DB in the house is a very dated "MEM" and I am thinking of adding appropriate breakers like a RCBO or RCCB to run off the old DB. Even If you cant do this personally, can you review, advise and supply appropriate quality configure. I am happy to discuss my thoughts with you.

For the good earthing system. Below is the list of materials to buy with the cost

Earth rod 7nos @ 7000 per one
Earth clamp 1 @ 2500
Earth coupler 6 @ 1000 per one
Earth mat 1 @ 6000
Salt. 1 bag @ 5000
Charcoal 4000
10mm bare copper cable 5m @ 1000 per meter
10mm insulated cable 15m @ 1000 per meter

For the isolating you can Havel product but the rating will now depend on the size of your building . We have 32A, 63A 100A but if you have a cut-out fuse I don't think you need isolator or gear switch..

For the RCCB or RCBO it is a nice suggestion BUT those breakers are very sensitive to eaither fault current, short circuiting, bad resistance value. If you plan to use the above listed breakers you must ensure all these below

Good wiring installation
Good value of earthing value to be less than 5-ohms or possibly to have less than 1-ohm

topsy23:
For the good earthing system. Below is the list of materials to buy with the cost

Earth rod 7nos @ 7000 per one
Earth clamp 1 @ 2500
Earth coupler 6 @ 1000 per one
Earth mat 1 @ 6000
Salt. 1 bag @ 5000
Charcoal 4000
10mm bare copper cable 5m @ 1000 per meter
10mm insulated cable 15m @ 1000 per meter
[/b] Can you supply these, so I can be sure of the quality of material? If yes, let me know and I will be in touch.

For the isolating you can Havel product but the rating will now depend on the size of your building . We have 32A, 63A 100A but if you have a cut-out fuse I don't think you need isolator or gear switch..
[b] I will confirm and let you know.

For the RCCB or RCBO it is a nice suggestion BUT those breakers are very sensitive to eaither fault current, short circuiting, bad resistance value. If you plan to use the above listed breakers you must ensure all these below
[/b] I intend to my brother. But maybe to reduce cost, if the original old DB is still functional then i may add another DB which is exclusively RCCB (if you think this is possible), that way we would have covered overload issues and fault, short circuiting and resistance issue. it is not only for property but for life too.

Good wiring installation
Good value of earthing value to be less than 5-ohms or possibly to have less than 1-ohm

[b] What is the specific name that these kind of service is referred as. Looking forward to your reply.

mangolpupa:
[b][/b] What is the specific name that these kind of service is referred as. Looking forward to your reply.

For the earthing materials I can supply you.

I will be expecting your feedback in the cut out fuse

The process is called remodelling / cable management

topsy23:
For the earthing materials I can supply you.

I will be expecting your feedback in the cut out fuse

The process is called remodelling / cable management

Ok. Will be in touch soon.

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nice job you are doing sir,
am just curious, what is the depth of your earth pit?

Obnoxious2001:
nice job you are doing sir,
am just curious, what is the depth of your earth pit?

The dimensions 1m x 1m x 1m the depth is 1m also

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