Earth rod

[uksparks]

3 months ago I sunk in 3 rods, two were 4m deep and the other 3m deep, Ra achieved at the time was 3.1 ohms using a Three lead spike test kit.

i hooked the summerhouse up today and finished it off,

i measured Ra again and it was 2.5 ohms, then just to let you know how close it was to Ze, so accuracy of the spike test, Zdb at the new board came out at 2.88 ohms, that was on the end of a 52m run of 16mm SWA.

im very happy with the end result.

 

[davesparks]

Yes I always glue them unless its indoors ]

Seriously?

 

[uksparks]

Seriously?

That did follow with not always glue them but often I do. To be honest glueing them just makes life difficult for you when you want to change the setup a bit.

 

[Risteard]

have you actually tried to buy one?

I have both 20mm and 25mm expansion couplers in stock in the van. They're not that hard to get.

 

[davesparks]

That did follow with not always glue them but often I do. To be honest glueing them just makes life difficult for you when you want to change the setup a bit.

Again, seriously?

What the hell is going to stop the whole lot falling apart if you don't glue it? It's an obvious failure to correctly erect the wiring system so a basic failure to comply with the regulations.

 

[shanky887614]

Again, seriously?

What the hell is going to stop the whole lot falling apart if you don't glue it? It's an obvious failure to correctly erect the wiring system so a basic failure to comply with the regulations.

seriously how will it fall apart if you dont glue it?

i wouldnt think the conduit would shrink more than 20mm between boxes?

 

[davesparks]

seriously how will it fall apart if you dont glue it?

i wouldnt think the conduit would shrink more than 20mm between boxes?

Expansion and contraction will depend on how much the temperature changes and what temperature the conduit was at when it was installed.

There are other things which can cause it to fall apart. Natural movement of the structure it is fixed to or bumps and knocks can cause it.

 

[shanky887614]

Expansion and contraction will depend on how much the temperature changes and what temperature the conduit was at when it was installed.

There are other things which can cause it to fall apart. Natural movement of the structure it is fixed to or bumps and knocks can cause it.

fair enough, normally i would prefer black steel conduit rather than plastic if i needed to install it outside

 

[Risteard]

I hate to see a PVC conduit system erected without PVC cement.

 

[davesparks]

fair enough, normally i would prefer black steel conduit rather than plastic if i needed to install it outside

And I was taught that BE conduit is not acceptable outside only galv

 

[shanky887614]

And I was taught that BE conduit is not acceptable outside only galv

ah sorry should have been clearer not enamel either black paint/powder coated etc glav conduit.


galv stands out like a sore thumb in domestic

 

[Leesparkykent]

And I was taught that BE conduit is not acceptable outside only galv

Same here.

 

[Guest77]

If you installed B&E outside you would probably get the sack on most companies.

 

[davesparks]

If you installed B&E outside you would probably get the sack on most companies.

Considering that it's no cheaper than galv these days and the quality is beyond poor I don't see much sense in using it anywhere these days

 

[Robson689]

Very good readings!! Denso tape is good for protecting the top of rods too it'll last a lifetime

 

[shanky887614]

Very good readings!! Denso tape is good for protecting the top of rods too it'll last a lifetime

is that the stuff they use for bonding for lightning protection to rods?