Does a TT Earth 0.13Ohms require a 100mA incomer?

[Energetic]

Had an interesting one this week, customer assures me he's on TT, DNO days the same but i'm getting 0.13Ohms on the Ze, never seen it that low befor.

There's no 100mA RCD on the supply and it doesn't look as if there's ever been one, so with that reading i'd assumed it was a TN system... so my question is do i now need to put on it as its TT? I'm assuming i do but with a reading that low is it still required?

My Regs book is in the van elsewhere... Thanks.

 

[Engineer54]

I reckon they'd rapidly sulphate, ie salt, thereby increasing the ground conductivity.

That will depend on the soil conditions, it could take a very long time to get to that stage. Even then it will, like all other soluble chemical additives soon be washed away. Cheaper just to add salt in the first place if you're going down the chemical additive treatment route...

 

[PEG]

...OR just use those re-hydration liquids to keep you going....and spend another hour with the biggest Hilti you can get,drivin' them in...:chinese:

 

[Engineer54]

...OR just use those re-hydration liquids to keep you going....and spend another hour with the biggest Hilti you can get,drivin' them in...:chinese:

Even better!! But you just stick to your short thin twigs and i'm sure it'll be a good'un!!

 

[Geordie Spark]

That will depend on the soil conditions, it could take a very long time to get to that stage. Even then it will, like all other soluble chemical additives soon be washed away. Cheaper just to add salt in the first place if you're going down the chemical additive treatment route...

Train the dog and wife to pee on it.

There was a Geordie champion leek grower ( you know about leek shows don't you - where blokes compete to grow the biggest leek? ) well this bloke always won the show and he was asked what the secret was. He said: "It's Wor Lass's pee. twice a day, morning & night, she waters the leek trench with her pee."

 

[trev]

Tha caalled leek boats roond wor way

 

[Geordie Spark]

Tha caalled leek boats roond wor way

Aye .. whey yese is aall furriners roond theor.

 

[trev]

N ye wreckin Aam a furrina!?
Me n Yee jist fell oot bonny lad!

 

[Geordie Spark]

N ye wreckin Aam a furrina!?
Me n Yee jist fell oot bonny lad!

Wheyman .... yer a Sandancer an' that's vorry nigh on bein' a Mackem!!!

 

[trev]

Wheyman .... yer a Sandancer an' that's vorry nigh on bein' a Mackem!!!

Ya nee marra o mine nee mair! Divvint foget, yowa lass is a sandy.
Ha, laffin on the otha side o that fyes niw?

 

[Geordie Spark]

Ya nee marra o mine nee mair! Divvint foget, yowa lass is a sandy.
Ha, laffin on the otha side o that fyes niw?

Nah hinny .... yer rang agyen ....... Wor Lass is a Staffy Pikey.

 

[trev]

Aye, Staffy Pikey but shus a sandy niw man. Sunny Marsden from worra cin mek oot, the posh end lyk