My last 'non Amd 3' CU Install.

[Dave OCD]

Put this in today, I hope it doesn't burst into flames.:tongue3: Didn't have the time to faff about and get the cabling 'perfect' as I had so much to do today but I think it's ok. With the BG boards I generally 're number' the earth bar as to me it's illogical having the CPCs running in the opposite order of the neutrals,I'll miss the insulated CUs. Sorry about the
poor photo.

 

[Dave OCD]

Well said

And I'd happily offer my services as an impartial and thoroughly fair judge

Excellent, but I'd put money on nothing being forthcoming from this character Dave, I'd be eager to judge it too. :biggrin:

 

[Hellmooth]

Surely it was taking the sarcasm to another level, if not then a bit of a pointless comment!

 

[Deleted member 9648]

deleted post

 

[hightower]

If this is aimed at me can I point out that both my 'critical' comments were in fact constructive comments.
1. The wisdom of using a non Am3 DB so close to it becoming a requirement should be challenged.
2. It would normally be bad practice to install a DB under any circumstances without provision for likely future expansion.
Both points were explained by the OP.

If you post your installs you should expect comments you may not like.

Those who just want to be told how wonderful they are should be wary of posting pictures of their installs if they are not perfect.

Was aimed at the few who have posted negative comments which seem unconstructive and needlessly pointless. It was aimed at those who make it hard for me as a trainee to decipher whether people actually deem this a poor install or are just being idiots. Since your comments were constructive, but also the fact they are explained and debated means this was not aimed at you. Comments like yours actually help my understanding. Comments like 'what a load of rubbish' don't. [emoji3]

 

[Deleted member 9648]

Simple observation here, but funny how it's the people who seem overly critical that I've never seen an install of their own posted anywhere.

Well with an all RCBO board [of which I've installed quite a few] I always leave spare ways. Now can you post up a picture of one of your CU installs which I'm sure will be absolutely perfect ? But you never know,I might be able to make pointless negative observations if I can be bothered. Merry Christmas.

If this is aimed at me can I point out that both my 'critical' comments were in fact constructive comments.
1. The wisdom of using a non Am3 DB so close to it becoming a requirement should be challenged.
2. It would normally be bad practice to install a DB under any circumstances without provision for likely future expansion.
Both points were explained by the DaveOCD.

If you post your installs you should expect comments you may not like.

Those who just want to be told how wonderful they are should be wary of posting pictures of their installs if they are not perfect,and for the above reasons these are not.

(edit....re-posted to include quotes. Hightowers reply came before re-post)

 

[bigspark17]

Haha I see what you mean mate, it does look a bit like that !:laugh3: Found another of my little jobs from around 3-4 years ago, this was an old house undergoing total refurbishment, unfortunately the idiot builder plastered the wall where the CU is before the cables coming down from above were in place [a load coming up from floor level were in oval conduit due to exposed beams in that room and no wiring allowed 'on show'] but the owner was putting a cupboard there anyway. That was a nice old house to work on, right out in the wilds and most of the time I was there alone, a really tranquil place. :smiley2: View attachment 31019View attachment 31018

as previously asked is this a tt system? Theres no dno earth and you havent got a rcd main switch at origin.?

 

[Leesparkykent]

as previously asked is this a tt system? Theres no dno earth and you havent got a rcd main switch at origin.?

What makes you think it's TT? I'm viewing the pic on an iPhone so you may be able to see a bigger pic on another device but I can't see a head in the pic to determine wether it's a DNO supplied earthing arrangement. You can see a 16mm Earth though....even it was a TT system why does it require an RCD as the main switch? It's a dual RCD board...It may be prudent to have an S-type upfront but not an actual requirement. Could you post a few pics of a recently completed CCU you have done?

 

[Midwest]

If it is a TT supply, the meter tails are run on the surface & are entering an insulated CU. All the circuits appear to have additional protection via RCD. Why would it need RCD main switch at origin? Take it you mean a S type RCD?

Edit: beaten by Lee

 

[Amp David]

Looks like TT.

But why the need for and RCD at origin? Looks like an insulated CU

 

[Leesparkykent]

I must be looking at the wrong pic anyway haha

 

[Deleted member 9648]

as previously asked is this a tt system? Theres no dno earth and you havent got a rcd main switch at origin.?

Perhaps you'd care to explain why an RCD main switch is needed in this instance?

 

[shanky887614]

nothing wrong with using a non amd3 board as long as it is within a non readily combustable enclosure its fine

 

[bigspark17]

If it is a TT supply, the meter tails are run on the surface & are entering an insulated CU. All the circuits appear to have additional protection via RCD. Why would it need RCD main switch at origin? Take it you mean a S type RCD?

Edit: beaten by Lee

well i was always taught and still belive all tt system should have upfront rcd at origin for fault protection, if you are relying on the 30mA rcd in these mass produced dbs then althought ok to cover your own arse at install what happens in the future when these low end rcd's break down and the originalsinstallers poor tt 3/8 rod degrades leaving unacceptavle Ra to operate overload device within disconection times, the install is then in a very unsafe state for the building and user! Why has the op not stated if this is a TT and could shed more light on the install in question

 

[telectrix]

years ago, it was common to fit an upfront RCD to a TT system for fault protection where some or most of the circuits were not RCD protected. with the introduction of the 17th ed. now all circuits ( in a domestic property) are generally on RCD since the "buried<50mm deep" reg. came into force. now it's genarally accepted that the CU RCD/s will give that fault protection.

 

[bigspark17]

So this rcd could be leaving the install in a dangerous state untill the next test, and the next test always gets done on due date lol. I stick to my guns a 100mA type S upfront on a domestic TT at origin is the best way to install that system