₦airaland Forum

Akpuoru:
Hi guys, I have an ongoing project in Benin but I was supplied the electrician I contracted does not know about the installation of lightening arrestor in fact he is talking me out of it.
I got a guy who said he would bury the copper tape from the arrestor together with the earthing cable 6mm from the DB. Please I don't know if am getting this right. Some info on lightening arrestor installation will be appreciated. Thanks

Let the lightening arrestor copper tape be separated from the building earthing. Make sure he use original copper earth rod for the earthing as well.

You can visit this thread for more information.

https://www.nairaland.com/2316228/importance-proper-earthing-bonding-system

Weldone engineer.


For complete design of ELECTRICAL and MECHANICAL DESIGN drawing visit this thread:

https://www.nairaland.com/1804476/complete-package-design-drawing-electrical




For complete standard electrical and mechanical installation visit;

https://www.nairaland.com/1233943/contact-us-electrical-mechanical-plumbing/9

Call us today

Call us today

charlesadeoye:
Please can you send me original prices of 1.5mm,2.5mm,4mm of the companies? Colemann, nigerchin etc. Whats the best of them all? And which one do you habe for sale? All these to chaz_adey@yahoo.com. thanks

Mail sent sir

I can't upload pictures, i don't know what is wrong but available on request

10mm 4-core flex cable 100m sent to warri

calk us today

nice day ahead

call us today

Thanks for your calls

Let's handle your electrical and mechanical design

I need Suzuki small bus very urgent. Pls if you have upload and give price. thanks

on going project

jabolo:
Ah, I see. A crazeman posing as an electrician was originally employed.

The problem is not from inverter nor harmonics filter. The electrician did a bad job

jabolo:
Did you test for harmonics? This is what a sub-optimal inverter spews out into the electrical system in several directions and no amount of DB separation can offer protection to sensitive equpment (i presume their old generator suffered stator inter-winding overheat and/or damage to its own control circuitry) without a harmonic filter in place.

If you did not replace the inverter, or install harmonic filters, I suspect you just got lucky with a replacement generator with inbuilt resilience but you're still sending that stuff out to the distribution network accumulating problems elsewhere resulting in system outages. There should be standards for inverters allowed to be installed in our homes and we should not allow any cheap stuff just to be imported.

The total connection was wrong initially, All the lighting and socket outlet connected to inverter shared the same neutral with PHCN /Generator instead of running a separate neutral cable from inverter equipment to a separate neutral bar on the DB. Whenever there is power outage from PHCN , all the loads connected to inverter will shut down even the inverter breaker will trip off. During the investigation and troubleshooting, we discovered that there is backfield in the main changeover switch and generator breaker when the inverter is working only. The inverter model is XANTREX from US one of the most expensive inverter in the market.

Give us a call today

twinskenny:
some places self we can use 4 for a duplex depending on how big the duplex is ... i know i will get bash for this lol

sometime you want to seperate inverter/solar load from AC/WATER HEAVY STUFF from inverter.. good to have smaller d4 single phase by the side of the big D8/D6...

You are right by separating the clean power from the raw power. some residential buildings and some offices use the same distribution board for raw power and inverter. We recently called by a South African company in Victoria Island for a power audit, they have been having issues with their power for over months. We carried out the following test:
-Insulation resistance test
-Continuity Test
-Earth Leakage test

After series of testing and other rigorous troubleshooting, we discovered that there was heavy backfield from inverter equipment to changeover and generator. This has caused them to change their generator before they contacted us cos it has damaged so many including their generator. Thank God we corrected everything and they are enjoying the power supply till date.

we are here to give u the best

Destinycalls:
1.5mm,2.5mm,4mm,10mm cables. D6 Distribution board. thanks email prices to mailtoche@yahoo.com

mail sent

Destinycalls:
1.5mm,2.5mm,4mm,10mm cables. D6 Distribution board. thanks email prices to mailtoche@yahoo.com

mail sent

Destinycalls:
1.5mm,2.5mm,4mm,10mm cables. D6 Distribution board. thanks email prices to mailtoche@yahoo.com

mail sent

Destinycalls:
Hello, Please could you assist with cable and distribution box prices. Please send details to mailtoche@yahoo.com Thank you.

pls can you specify the size of cables and distribution boards?
thanks

geotuns:
Hello,
Please, could you assist with cable prices?
Please send details to geotuns@gmail.com
Thank you.

sent

ongoing works

FastShipping:
Twinskenny and co,

Is there a way I can make this standing lights work in Nigeria? They are 110v but Nigeria is 220v. I like them a lot but not available in Lagos.

You can get the one with stepdown transformer it will definitely work in Nigeria

Happy Sunday to u all

Happy Sunday

clarocuzioo:
Please can you send me the current prices of all major producers, please also send me ur contact phone number to cruc_ifixo@yahoo.com thanks

Mail sent

Happy weekend

Joynikky:
Could you please help to answer this question.
My electrician wants me to use 16mm instead of using 10mm for the load in my house wiring. He says because it is will be rented apartment, that the tenant might start overloading the wires if I use 10mm. All the people that I know used 10mm for their own house.
Would there be sense is what my electrician is saying?

Thanks for asking the question
What is the size of your house? 2bedroom, 3bedroom or how many bedroom. Is your Distribution board single phase or 3phase? how many AC and water heater point do you have in the building? All these determine the total load.

I need answer to the above questions to get you the size of cable.

Thanks

Dominionng:
That's the world I find myself sir. It was my good intention that put me in trouble. At a time when prospective clients believe contractors might run away with their money, or start nagging about how the agreed sum is not feasible after money has exchange hands, I took it upon myself to

a. Receive 50% of the project sum as mobilization fee and the balance only when project is TOTALLY completed .

b. No mobilization fee, then receive payment when project is TOTALLY completed.

I never knew I'd be giving the witches and wizards from my village a chance to be fanning themselves with my photo.

Boss that's serious. God will open another way