EICR remedial work

[wozz]

Do you have results for a 100ma rcd? Or assuming theses one there??

are you actually doing the remedials tomorrow? Have you priced it?

 

[Jaxo]

from looking at current report it appears there is no 100mA RCD, havent priced it... will be an invoice on completion... its an odd set up tbh.. Tennents in the house left (and broke their tennancy) saying the house was unfit for living in due to damp and other things. They got local council / environmental health involved.. who went over every aspect of the whole house.. including some guy they they hired to test the wiring...

So the people testing the wiring are working for local council,.. and I`m working for the letting agent... Have a feeling the same people will be coming back to retest it...

 

[sparkymalarky]

Oh I'd love to know a lot of things about this thread!! lol! What council would this be bud?

So there is no RCD on the shower?

 

[Engineer54]

It's no good guessing at this stage, you need to see the installation in it's entirity, for you to make any sensible conclusions.

You may well have to replace the CU if this is a TT installation, and it has no RCD protection of any kind. But i find that hard to believe if this installation is only 10 years old, as it would have still required RCD protection, even going back to the 15th ed, or even the 14th come to that, even if it was an up front VOELCB!!

Having said that, it does sound like this installation has been PME'd, if it's giving a Ze of 0.32 ohms. You'dl be hard pressed to obtain that kind of value on a TT system, with the parallel earths still in place or not!! lol!!


Anyway, let us know what you eventually find at this job....

 

[Jaxo]

Ok, ... back with a bit of an update... There is acutally a 100mA RCD as the main switch on the board.. he just didnt bother to test it/ record result on the cert...

I manages to find the earth spike in about 30 seconds.. it was under the floor right at the consumer unit... it even had a trap cut for access....

Another thing Ive noticed is that it has an old style cut out... and it "appears" to be to be a TNS supply... Live to neutral Ra is 0.12 and live to earth (Casing of cut out) is 0.22... TBH Being young ...ish I dont see many of these types of cut outs but ones I have seen before usually have an adjustable earth clamp on the sheeth of the supply cable and the installation earthed from this... Will ring the DNO (NIE) in the morning and ask them to upgrade the cut out.. (I can actually see where the installation has been previously been earthed of the casing, but it appears whoever rewired the house has installed a spike and ignored the fact there is an earth supplied

more worryingly is something else I found... a BS1361 fuse with the tinfoil wrapped around it (and not a word about it on the report... nor that half the board blanks where missing and there was no cover on the busbar inside the board...At least he found a broken earth in a light switch in the bedroom... I`m sure it took longer to write this on the report than it did for me to fix ....

 

[davesparks]

Looks like you've got a proper lead cable gland on that cutout. So I see no reason not to lug an earth onto one of them bolts, subject to actually getting a proper look at it and confirming TNS with the DNO etc obviously

 

[Engineer54]

To be honest i can't make out whether you are testing Zs or Ze. One things for sure, you ain't getting a value of 0.32 ohm off of that earth rod, especially when the rod is within the boundary of the house and not in an external location... How about a photo of the DNO cut out and the installations MET??


The last thing you should see on a TN-S PILC cable sheath is an adjustable clamp (BS 951 or whatever it is). 9 out of 10 times, the connection will be via a sweated connection or lead wiped connection, the rest being by means of Hepworth clamp or a constant force spring clamp.

 

[GLENNSPARK]

see what kind of a Ze you get off that paper-lead....

are we talking about an old cast cutout here?

if so then the DNO have been on a replacement program with these....

get em out to see to it....you may get a distributers earthing out of it as well...

 

[Knobhead]

How about a photo of the DNO cut out and the installations MET??


The last thing you should see on a TN-S PILC cable sheath is an adjustable clamp (BS 951 or whatever it is). 9 out of 10 times, the connection will be via a sweated connection or lead wiped connection, the rest being by means of Hepworth clamp or a constant force spring clamp.

Photo would be good.

There’s no danger of damaging that cable. Its PILC SWA plumbed to a brass cone. God knows how old it is.

The cut off earth is in the best place to pick up the lead sheath and armours. There’s no risk of damage.

 

[davesparks]

So as mentioned just lug onto one of them there bolts.
Whatever they replace that cutout with won't be anywhere near as good quality!