TN-S supply 4.2ohms, this is the solution from the DNO!

[GaryM]

I recorded a Ze on a TN-S supply as 4.2ohms. Consumer unit is an all insulation Wylex twin RCD unit.
I spoke to the landlord of the property which was currently empty (now occupied) and told him he needs to contact the DNO with regards to the high Ze.

They came to site and this was the result! Essentially it looks like they're treating the high Ze with an RCD though all circuits are protected by 30mA RCD's.
I've asked the landlord to contact them and ask, in writing, for their reasoning behind what they've done and when they're going to return to maintain the earth that they're responsible for.
Also why we couldn't get away with leaving an enclosure flapping in the wind, two circular conductors through a single stuffing gland designed for one conductor. They seem to be a law unto themselves.

 

[Mark.W]

It would be safer just to spike it IMO!

 

[ezzzekiel]

bit surprised they would leave that even as temp measure

 

[GaryM]

It would be safer just to spike it IMO!

I looked specifically for am earth rod as that's what I expected when the landlord explained that they had fitted an RCD in line with the tails but no, not there.

 

[GaryM]

bit surprised they would leave that even as temp measure

Me too, totally shocked when I saw it!

 

[rich.250]

Good job DNO!! (insert sarcasm here)

So they can fit rcds now??
And then you have to in series so the dual Rcd board is pointless.....
Lol

 

[SPARTYKUS]

What a bag of.

 

[londonlec]

Temporary solution IMO.

 

[GaryM]

Temporary solution IMO.

I reckon so too but that will be confirmed when the landlord contacts the DNO.

Temporary or not though, the work is unacceptable.

 

[GLENNSPARK]

so who regulates DNOs?....they should see this......

 

[hasel5]

Can't believe the don would not resel there units sounds like landlord is telling a untruth to me

 

[GaryM]

Can't believe the don would not resel there units sounds like landlord is telling a untruth to me

I know him very well and no, it's not an untruth as you put it.
No seals were placed on any of the equipment.

 

[Amp David]

Where's the supply cable to the head?

 

[GaryM]

Where's the supply cable to the head?

It enters the bottom like normal.

 

[Amp David]

LOL, just looked again and saw it, looked like some unpainted plaster at first.

 

[GaryM]

LOL, just looked again and saw it, looked like some unpainted plaster at first.

It does, I can see why you missed it