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Discuss New Garage Supply Certs in the Electrical Forum area at ElectriciansForums.net

T

Thomps

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Evening all.

I replaced a CU in a friends house the other week, completed EIC cert and all is good. He now wants his garage supplied with some electrics, no problems as i am going to use a spare way in the CU, use SWA supply to the Garage, install a small board in garage for lights sockets.

I am going to issue a EIC for his garage electrics but i'm not 100% certain how to do it.

I take it the 'Supply Characteristics' part refering to the main incomer?
What do you put in the 'Particulars of Installation Referred to in the Certificate'? - Is this house CU information?
Is the 'Schedule of Inspections' solely interested in the Garage install?

I'm still getting to grips with this game so any help is appreciated.

Cheers
 
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O

Octopus

  • Thread Starter Thread Starter
  • #2
Have you asked your schemes technical support?
 
Quite common problem on the industrial sector: cu is being fed from another cu.
i don't know whether my method is ok, I treat each cu as a stand alone but fed from the same supply.
 
Quite common problem on the industrial sector: cu is being fed from another cu.
i don't know whether my method is ok, I treat each cu as a stand alone but fed from the same supply. I'd be interested in an answer to this problem as well.
 
G

Guest55

  • Thread Starter Thread Starter
  • #6
Quite common problem on the industrial sector: cu is being fed from another cu.
i don't know whether my method is ok, I treat each cu as a stand alone but fed from the same supply. I'd be interested in an answer to this problem as well.
Why is a DB feeding another DB via a sub-mains a problem ?
Testing is the same as any other final circuit.
 
T

Thomps

  • Thread Starter Thread Starter
  • #7
Have you asked your schemes technical support?
I was looking on here for an answer, couldn't find it, thought i'd ask. If no one can help i'll just call them up.
 

spark 68

-
Arms
Esteemed
The usual way I do this (others may have a different method),

Is to include the sub main (the supply cable) as one final circuit on the main CU/DB SoI and SoTR, including the (R1+R2) results etc. of the sub main.

Issue a second set of SoI and SoTR and EIC for the garage installation, using Zdb previously obtained for the submain above, and include the test results of the garage CU/DB and circuits on the second EIC and SoTR.
 
G

Guest55

  • Thread Starter Thread Starter
  • #9
I was looking on here for an answer, couldn't find it, thought i'd ask. If no one can help i'll just call them up.
In answer to our question , this is how i would do the certs ,

Fill out 1 EIC for the swa feed to the garage and the lights / sockets / CU in the garage but use 2 test schedules
schedule 1 just for the swa submains from the main CU and schedule 2 for the garage CU and the lights / sockets that it supplies.
 
T

Thomps

  • Thread Starter Thread Starter
  • #11
The usual way I do this (others may have a different method),

Is to include the sub main (the supply cable) as one final circuit on the main CU/DB SoI and SoTR, including the (R1+R2) results etc. of the sub main.

Issue a second set of SoI and SoTR and EIC for the garage installation, using Zdb previously obtained for the submain above, and include the test results of the garage CU/DB and circuits on the second EIC and SoTR.
Sounds good, but if the house already has the Cert for the CU where your going to utilise a spare way is it ok just to add the extra test results for the new cable to that SoTR?
 
O

Octopus

  • Thread Starter Thread Starter
  • #12
Sounds good, but if the house already has the Cert for the CU where your going to utilise a spare way is it ok just to add the extra test results for the new cable to that SoTR?
Simply do an EIC for the "main" DB, noting "used" against all the existing circuits. Fill out the details and results for the new circuit along with the obligatory Ze, bonding, etc etc.

Seperate EIC for the sub DB. Notitfy LABC
 
D

Danboy86

  • Thread Starter Thread Starter
  • #13
Spark 68 has made this plain and simple
 
T

Thomps

  • Thread Starter Thread Starter
  • #14
Am i right in saying the householder will now have 3 seperate EICs? An original one for the house CU, a second one for the installation of the new cable and a third one for the garage install?
 

spark 68

-
Arms
Esteemed
Sounds good, but if the house already has the Cert for the CU where your going to utilise a spare way is it ok just to add the extra test results for the new cable to that SoTR?
If it was just done by you recently, you could do a quick check to see if anything has changed significantly (which it shouldn't have), and either as Murdoch said, fill out a new EIC,SoTR etc. as his post suggests, or add the sub main to the existing one if you haven't put a line through all the unused sections.

You include the supply charecteristics of the origin on the main CU/DB EIC, SoTR and SoI, as you would normally do, and put your Zdb of the sub main (as I said earlier) as the supply characteristics on the second set of paperwork.

If you had done the work altogether it could have been done under one EIC, with two sets of SoI's and SoTR's, one for each seperate CU.
 
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