New consumer unit.

B

Busby28

I've been putting together a parts list for some wiring.

1 - 100A/100Ma T/delay DP RCD - £85
1 - 12 Way SL-CU /100A/DP 63A/30maRCD including mcb's - £74
1 - Wylex 110m/80 DP Switch Fuse - £31

How do these prices sound?
Other bits are bus bar, henley block connectors, armoured gland + banjo, resin joint, stuffing glands, connecctor blocks, junction box etc etc.
Earthing system is TT.

When I disconnect the elcb I assume the earth goes straight to the earth bar in the CU and then back to the banjo tab for the SWA?
Those are internet prices and hope to price the lot up tomorrow at the merchants.

What the best connection method for extending the cables from the property as the original spark 30 years ago left them a little short?
Is joining them even recommended?
When I'm all done I'll get my spark to test it all.
 
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When I'm all done I'll get my spark to test it all.

Unfortunately it doesn't work like that (or shouldn't). Any electrician who does it that way is a fool. With something as involved as a consumer unit I would want to supply all the materials so that I could fully guarantee the work and be happy signing the certificate.

And with the questions you're asking you don't sound competant enough to be working on consumer units anyway.
 
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Hold on there.

Where are you in the UK?
If you are in England or Wales and intend to DIY the electrical works then you
MUST
Notify the local authority BEFORE starting work.
and pay their fee
They will inspect the work YOU have done at certain stages. At the end they will want to see the test results that YOU have measured to determine compliance with BS7671 and will want to see the Installation Certificate that YOU will have completed and signed.

OR

you need to use a registered electrcian who will certify and notify the work that HE(she) has done.

There is NO option for you to do the work and
get my spark to test it all.

Do read the WIKI about Electrical Works and the Law.

Cannot advise on your prices as have no iddea what you are doing.

Eg. Why a time delay RCD?
What ELCB?
Why a switch fuse? Where is it going?
Why a split load consumer unit. You will need 30mA RCD protection on ALL circuits. This is all basic wiring regulations stuff. .....
 
B

Busby28

I'm competent enough imo and have all the tools required to do the job.
When I've the parts gathered up thats the first stage completed. Then a spare saturday I'll tackle it all being well.
 
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Busby28, why are you buying a 100mA RCD? Also, why time delayed?

Is this for a domestic property?
 
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Busby28, a "competent person" in electrical terms in England & Wales means a person who has been instructed, tested and certified for electrical installation work compliant with BS7671.

It is not a general term in the above context but a specific status. Please don't think I am being rude or unhelpful. It is a term that is often (understandably) misunderstood by the layperson.
 
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Busby28, it would be good for you to get back to use to explain your plans.
You will get good advice but I must say that at first glance the parts you are planning to order are unusual for bog standard domestic.

As for the prices they look OKish to me. Regarding extending cables, we would need to know what cables?

It is a fact (as has been mentioned) that a registered electrician can not certify the work of others. a registered electrician certifies only his own work or is the qualified supervisor for a group of instructed electricians.

There are only two routes:
1) use a registered electrician for the work.
2) Notify your LABC, produce and electrical certificate, Have LABC inspect the certificate and the work.
 
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This is a wind up merchant - Troll - although he has a locked (private profile) a quick search against his name will give you all you need to know about this lunatic.

For example:
//www.diynot.com/forums/viewtopic.php?p=1830238#1830238[/QUOTE]

This is a wind up merchant - Troll - although he has a locked (private profile) a quick search against his name will give you all you need to know about this lunatic.

For example:
//www.diynot.com/forums/viewtopic.php?p=1830238#1830238[/QUOTE]


Just read it. Yea he thinks he lives in America :rolleyes:
Busby appears to be one of the people who missed out on any significant education. Good try Busby but get some GCSEs/High School Diploma first then come back with some real questions that make half sense.
Happy Thanksgiving :LOL:
 
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I've been putting together a parts list for some wiring.
Why?

What's the point?

Are you also putting together a list of parts for a time machine? It'd be no less realistic for you.


1 - 100A/100Ma T/delay DP RCD
As sparkticus asked - why a time delayed one?


Other bits are bus bar,
Are you building your own CU? As bus bar isn't a chocolate covered snack, you know.


resin joint
I think you've already smoked too many.


Earthing system is TT.
Is that the reason for the 100mA Class S? You've stumbled on some out-of-date document which you don't understand and don't realise no longer applies?


When I disconnect the elcb I assume the earth goes straight to the earth bar in the CU and then back to the banjo tab for the SWA?
If you really were competent you would not need to ask that.


What the best connection method for extending the cables from the property as the original spark 30 years ago left them a little short?
If you really were competent you would not need to ask that.


Is joining them even recommended?
If you really were competent you would not need to ask that.


When I'm all done I'll get my spark to test it all.
I think not.


I'm competent enough imo




and have all the tools required to do the job.
No you haven't.


When I've the parts gathered up thats the first stage completed. Then a spare saturday I'll tackle it all being well.

  • For a circuit to supply a given load, how would you go about deciding what cable and protective device to use? (No, you can't just copy what's there because it's going to become your responsibility and what's there might be wrong.)

  • Do you know which circuits can be ring finals and which cannot, and what the advantages and disadvantages of each are? (No, you can't just copy what's there because it's going to become your responsibility and what's there might be wrong.)

  • How do you calculate maximum demand and how can diversity be used?

  • Can you correctly identify all components and connections of a circuit by method of testing or otherwise? In doing so can you identify or recognise anything wrong or dangerous with the circuit? You cannot assume that what's currently installed is OK, and you need to check it before starting work.

  • Do you understand how the way in which cables are installed affects how much current they can carry? (No, you can't just copy what's there because it's going to become your responsibility and what's there might be wrong.)

  • Where cables need to be joined, how should this be done / not be done and in what circumstances are different methods acceptable?

  • Can you identify extraneous conductive parts, and do you know the requirements for main and supplementary bonding of them?

  • Which circuits should be RCD protected?

  • What about the testing that you should do on your existing installation before you change the CU, if you want to be sure of avoiding grief from new RCDs tripping?

  • And what about the tests you should carry out after the installation? What sequence will you do them in and at what point wil you energise the installation, and for each test do you know what is being measured, why it is important, how you would carry out the test, and with what equipment, and what sort of results you would expect to get if everything was OK?
 
B

Busby28

It is a fact (as has been mentioned) that a registered electrician can not certify the work of others

Any thing is possible. I have a friend who will sign off my work as being his own at the drop of a hat.
Will he still be my friend if my home burns down and he's in the clinker and struck off. Yes he will.

Bas you've just ruined another thread. Why don't you troll someone elses thread unless you have something usefull to add. You sound like a right sad old git with that many posts.
 

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