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I have the test results sheets as performed by Haste - the DNO asked for them to be done, and paid for them, so they must give them credibility. If they want to wash their hands of the issue, they would have tried, with "proper" tests, to find fault at my end. headbang FWIW, I'm certain they...

Okay, so here's the evidence I have - it's about the best I can do... I have a ControlLogix PLC recording the the date/time of power outages.... When the CU has tripped, if it wasn't the DNO or Haste doing tests, I have telephoned the pub within 1 to 2 minutes, and they confirmed they had just...

I hear you. It seems that the so-called "professionals" take short-cuts, and adopt bad pratices when doing their tests.... 1. The DNO tested my RCD with a device they plugged into a nearby outlet 2. Ze measurements were done with bonding connected 3. IR appears to have been done with all the...

i doubt this guy has a box small enough to contain his thoughts... anyway, i've been reading the BEAMA "RCD Handbook", and there's a section on "nuisance" trips - interesting reading: they say a major cause of RCD trips is transient injection from another location - and even mention discharge...

THEY (as in the DNO.) didn't supply the new trip - I had to get it, at my cost (they will reimburse me if it don't cure the problem). stop wondering, the new one is a 30mA trip .... Old RCD legrand 086 31 New RCD legrand 089 12 I was told by the distributor - "same trip, just a different...

Would you do that ?

I'm learning a lot from these later posts, thanks guys.... e.g. 1. Ze has been measured (twice) with all the "parallel paths" still connected and gives me no re-assurance of my own path to earth... BAD 2. IR tested globally across the board isn't a true test, probably devised by Haste because...

Steptoe, just answer this one question, and please at least try to be honest.... 1. Your board starts tripping after your DNO puts you on a new supply cable.... 2. Your supply has been trip-free since your CU was installed.... 3. You make a connection that another consumer is tripping your...

Cool, I never thought of that !! funny'ish, but very childish - if you've got nothing constructive to say, why make the effort ?

Thank-you for calling me "ignorant" I won't return the compliment. I hope you languish in the despair I'm causing you, I'll not lose any sleep over it :good night: . What I will say is that I'm not dealing with it in my own way - I am co-operating with the DNO in every respect, who should...

I assumed nothing, I just passed on what I was told. But the question remains : SHOULD the DNO be rodding every joint, or not !? Are there any regs for distribution? ---------- Post Auto-Merged at 01:35 ---------- Previous post was made at 01:27 ---------- They were not MY testers, they were...

I give up

The best idea I have heard so far is that the overlay should have rodded N to E at every spur to a premises, on the basis that the premises were PME. The person who told me that said that they would not have done it properly, or at all, relying on a N-E bonding in the substation. That is the...

That doesn't surprise me at all, considering the neutrals are all connected to a single fat bus-bar in the CU, and there is no switching on the neutrals - I would expect that N-E was consistent across the board. ---------- Post Auto-Merged at 00:53 ---------- Previous post was made at 00:51...

He said it was a test they devised themselves - I'm not going to argue with them.

Have just spoken with Haste technical about the apparent low N-E reading, and he confirmed that it is a typical figure obtained when testing with CB's closed, i.e. all the devices in the house connected, and is due to all manner of things, including, he said, the main culprits being surge...

I believe Ze was measured with all the protected circuits isolated (CB's off), nothing was unplugged in the house. All I have on the non-protected end of the board is the house alarm, and a fridge/freezer, which was replaced for another reason after the problems started. The report shows N-E at...

Maybe it's because the ground is heavily laden with coal dust... These are miners terrace houses, the area was extensively mined up until the 50's as I understand it. Somebody's got to be the lowest - do I get a prize ? :D ---------- Post Auto-Merged at 12:14 ---------- Previous post was...

I can see the earth cable coming out of their house, but it disappears under the "lawn" travelling in the direction of my house. I lose site of it after about 3 feet. I can't see the top of an earth rod, but I can also see a second newer earth cable - it looks like they have a second rod added...