Can't have flat plate accessories in my (new build) new house I guess....
D
Dustydazzler
You can , but you will need to remove the 25mm box , hack out another 11-12 mm of wall and put a 35mm box in 
Yeah I know but thought it would be a nice easy swap but most boxes mounted onto a dot and dab wall protrude by like 4mm
D
Dustydazzler
you will probably find the 25mm boxes are screwed straight on the block work hence they are sticking out 4-5mm
Classic stuff though meter tails must run 10 meters through the house, 100A isolator at the mains, and a BG dual RCD board in a house finished 4months ago....
Yeah man all done quick and easy like my ex wife
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What an utterly stupid position to fit the main switch with the top so close to the top of the meter box, the outgoing tails then look a mess, that was probably the meter bodger fitter though. I don't suppose the Electrical Contractors have the initials CE by any chance ?
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Went to one of the local residents place today as she was having issues with her Zappi and Renault Zoe.
Looking at the setup it was straightforward and, whilst not necessarily the way I’d have done it, it was still compliant.
So tried to run a Zs test L-PE but got a ‘con’ error on my Megger which means the earth is either unstable or disconnected. R1-R2 was within tolerance. So I knew the continuity through was fine.
The Zoe is quite fussy and if it detects an earth problem it won’t let the car charge.
House is out in the stick and on a TT system. So I ran a Ze at the origin of the supply and this was the lowest result I got.
It was fluctuating between 688 and 746.
Someone has had the wisdom to bury the earth rod connection under some decking and flower bed. Meaning it’s inaccessible to check if it’s just loose, or poorly installed.
Ground is rocky as hell so going to be fun getting in some new rods to get the Ze below 200. May end up daisy chaining 3-4 rods just to get it down. But will see how it goes.
Looking at the setup it was straightforward and, whilst not necessarily the way I’d have done it, it was still compliant.
So tried to run a Zs test L-PE but got a ‘con’ error on my Megger which means the earth is either unstable or disconnected. R1-R2 was within tolerance. So I knew the continuity through was fine.
The Zoe is quite fussy and if it detects an earth problem it won’t let the car charge.
House is out in the stick and on a TT system. So I ran a Ze at the origin of the supply and this was the lowest result I got.
It was fluctuating between 688 and 746.
Someone has had the wisdom to bury the earth rod connection under some decking and flower bed. Meaning it’s inaccessible to check if it’s just loose, or poorly installed.
Ground is rocky as hell so going to be fun getting in some new rods to get the Ze below 200. May end up daisy chaining 3-4 rods just to get it down. But will see how it goes.
It has also been very dry so if the rod is not deep it probably has got that issue as well.
Might be an excuse to try one of these (and the matching SDS adaptor) to get a new rod down through rocky ground:
Earth Rod Pro Drill Bit (Pack of 1)
Allows rapid earth rod installation when used with Earth Rod Pro drivers - sold separately [1LERPD] and [1LERPM]
www.cef.co.uk
- Jan 30, 2021
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Already have the adapter and have quoted for the sacrificial bits.It has also been very dry so if the rod is not deep it probably has got that issue as well.
Might be an excuse to try one of these (and the matching SDS adaptor) to get a new rod down through rocky ground:
Earth Rod Pro Drill Bit (Pack of 1)
Allows rapid earth rod installation when used with Earth Rod Pro drivers - sold separately [1LERPD] and [1LERPM]www.cef.co.uk
Used them before and they are very good. I’m guessing they have only used 1 rod as I can usually get the reading somewhere around 50ohms if I use two 16mm rods.
Good to hear! I modified M16 stainless threaded rod with angle grinder to achieve much the same before.
If you can get two coupled and driven in to 2.4m depth hopefully enough damp down there for a decent reading. Beware if heavy rain soon as it could mask how dry it is capable of getting in that area.
D
Dustydazzler
Well speaking to the site manager he said the tails go up the wall behind a steel plate then over 5cm from the top and bottom of the joists which they are as I saw them when doing the downlights
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