When does a domestic property need a rewire ???

[Dozer 73]

see a lot of different threads on here , where people asking for advice on old installations , one tonight even about moving sockets installed in the70’s in metal conduit and 2 core cable
It’s a funny game where not every one thinks the same , know wiring lasts a long time but the accessories get worn , make bad connections to plugs , lamps , switches etc
Personally I’m quite quick to advice a rewire , not for my personal gain tbh
Just wanted to know at what point other people advice a rewire

 

[John Guy]

I’m presuming you have a budget for your house and ultimately this will sway your decision either way

My thinking has always been inline with the title of the thread, long before I bought this house. If the wiring is of the correct gauge, where's the problem... spend money on a good CU have the condition report done and all is good, but that thinking didn't include the lack of earth

 

[Octopus]

...How big is the home and how long was the "inspector" in it?

It's a small two bed, with extended kitchen.
He was about 10-15 minutes under the stairs. I don't know if this is usual[/QUOTE]

How much did it cost?

 

[John Guy]

It's a small two bed, with extended kitchen.
He was about 10-15 minutes under the stairs. I don't know if this is usual

How much did it cost?[/QUOTE]
£70

 

[123]

So already your into new DB (mains ) upgrade bonding , new kitchen (separate ring ) extra sockets in every room , new boiler supply and stat , outside lights , smokes ( pending on how much you value yours and family’s life )
While your ripping house apart and full redecoration and plastering i’d Bite the bullet and do full rewire

Seriously?

 

[Midwest]

Went to a property the other day, to quote for kitchen refurb'. No cpc in lighting circuits amongst other things. They had a 'visual' check done on the electrics before moving in 6mths ago, customer still not convinced about spending money on upgrading electrics, but want to spend money on new kitchen.

Just making my point again;

I've been to two different properties recently, to quote for a kitchen refurb'. Both customers had moved in the last few months. Both had paid for a 'visual electrical inspection'.

The first one was quite good, identifying things that needed rectifying, but no testing was done, and no accessories removed for inspection.

The second one was not so good, similarly no testing etc, and failed to note the missing cpc on lighting circuits.

I've declined both jobs, and advised customers to have a proper EICR conducted.

It amazes me that people, are concerned about the state of a properties electrical installation before purchase, have some kind inspection, but then move in and don't act on the findings. They then decide to spend thousands of pounds on kitchens, bathrooms, central heating, floor coverings, redecoration etc etc.

 

[telectrix]

I disagree with most of those code 1's. lack of inspection next due label, code 1 my arse. a new CU with RCD protection and the earthing bonding sorted is most of it fixed.

 

[telectrix]

£70.

How much did it cost?

£70[/QUOTE]
looks very much like a fishing expedition the get you to agree to a full rewire. look forward to seeing andy's verdict on here in a day or so.

 

[Risteard]

Why no r1 r2 when he’s stated earth sizes of cables also why no ins res between L and N , looks more of a visual test he’s carried out here

Whilst agreed limitations need to be recorded, there is no reason to conduct either (R1+R2) or R2 testing during periodic inspection and testing. The installation is already energised and therefore Zs testing is sufficient to verify cpc continuity.

Also, insulation resistance between live conductors is wholly impractical - you aren't going to disconnect every lamp and load to conduct the test. What is more important is testing live conductors (connected together) to Earth, and this is the normal approach where insulation testing is possible. (If you can't shut down the supply, for example, insulation testing is impossible - not likely for a simple house though.)

 

[Dozer 73]

this tester has stated No main earth and also earth loop not accurate , so I would personally do r1 r2 for accurate reading of earth continuity
And as for ins resistance yes lighting l and n to earth , but why not give other circuits quick test , give you better picture of what’s going on specially when alarm bells are ringing My thinking has always been inline with the title of the thread, long before I bought this house. If the wiring is of the correct gauge, where's the problem... spend money on a good CU have the condition report done and all is good, but that thinking didn't include the lack of earth

This is correct ,

 

[Dozer 73]

Whilst agreed limitations need to be recorded, there is no reason to conduct either (R1+R2) or R2 testing during periodic inspection and testing. The installation is already energised and therefore Zs testing is sufficient to verify cpc continuity.

Also, insulation resistance between live conductors is wholly impractical - you aren't going to disconnect every lamp and load to conduct the test. What is more important is testing live conductors (connected together) to Earth, and this is the normal approach where insulation testing is possible. (If you can't shut down the supply, for example, insulation testing is impossible - not likely for a simple house though.)

So you would be happy with the report given

 

[Risteard]

So you would be happy with the report given

I haven't looked at the report. That doesn't alter the validity of my comments though.

 

[Dozer 73]

I haven't looked at the report. That doesn't alter the validity of my comments though.

Look at the report see what you think

 

[Risteard]

Look at the report see what you think

It's not relevant to my remarks though, which are general to periodic inspection and testing.

 

[Dozer 73]

That is what the conversation you have entered is about

 

[Dozer 73]

It's not relevant to my remarks though, which are general to periodic inspection and testing.

Pretty sure niceic recommend r1 r2 method to loop on Old periodic tests , more accurate and safer method ,(don’t quote me on this )
If you measure a Zs then how do you know it is done thru a cpc of the cct under test and not from supp bonding or from fortuitous indirect contact from another cpc ?