Consumer Unit replacement

[ryanryan]

To what extent do we take for the rest of the installation?

Obviousely, the Bonding.

Is it a Periodic for the rest of the install?

What about smoke alarms?

and supplies for outbuilding CUs, do they require an RCD at the point of supply or can you rely on an RCD at the incomer to the CU?

 

[Mac]

To what extent do we take for the rest of the installation?

Obviousely, the Bonding.

Is it a Periodic for the rest of the install?

What about smoke alarms?

and supplies for outbuilding CUs, do they require an RCD at the point of supply or can you rely on an RCD at the incomer to the CU?

As far as i'm aware,you should be doing a PIR before you change the CU,that goes for all circuits fed from that CU.

 

[Spudnik]

Its a tricky one this.

Although it is recommended that for your own satisfaction a PIR should be carried out, you do need test results for the certificate anyway.

And the most common problem with CU changes is main bonding.

Also, nothing worse than assuming the install is ok and find the RCD tripping like a goodun.

 

[ryanryan]

Its a tricky one this.

Although it is recommended that for your own satisfaction a PIR should be carried out, you do need test results for the certificate anyway.

the test results for the Installation cert could only include the Ze PFC and polarity....

so a PIR after the CU change would include the existing, with any deviations for future work !! maybe

 

[chocolate]

After you install a new consumer unit, you issue an electrical installation certificate. In doing so, you are saying that the installation requires no further work - and is to 17th standards.

If there are problems or areas of improvement needed, they should be done before a certificate can be issued.

 

[Mark.W]

After you install a new consumer unit, you issue an electrical installation certificate. In doing so, you are saying that the installation requires no further work - and is to 17th standards.

If there are problems or areas of improvement needed, they should be done before a certificate can be issued.

That decision is down the customer, if there are any problems with the installation then you can't make them have it rectified, all you can do is inform them and note it on the cert.

That is why you normally test the installation before carrying out the consumer unit change, so that if you do pick anything up then you can discuss it with the customer before hand.

 

[ryanryan]

After you install a new consumer unit, you issue an electrical installation certificate. In doing so, you are saying that the installation requires no further work - and is to 17th standards.

If there are problems or areas of improvement needed, they should be done before a certificate can be issued.

The EIS only certs your work that you installed! so you must have a Periodic for the existing installation

 

[zupos40]

The EIS only certs your work that you installed! so you must have a Periodic for the existing installation

Hi Ryanryan goto electrical safety council web site and read there booklet of changing consumer unit, you will read why it is important to test before changing CCU, no bonding, or 4mm bonding, no earthing in lighting circuit, low insulation result, ring that are radials, lighting off socket with no FCU, an a few of the problems I come across they booklet is full of good advice

 

[Monkey1984]

I would at the very least do an insulation resistance test on all circuits and continuity before changing any board.

Can't think of anything worse then changing the board then having the Proverbial hit the fan because you have dodgy results when filling in the Schedule of Tests.

 

[ryanryan]

After you install a new consumer unit, you issue an electrical installation certificate. In doing so, you are saying that the installation requires no further work.

you cant issue a EIC for the rest of the install... you didint install it!

 

[Monkey1984]

you cant issue a EIC for the rest of the install... you didint install it!

I read that as Schedule of Inspections and Tests that accompany the EIC for the unit change. Not stating that they rewired the house, but simply changed the 'Characteristics' of the existing circuits and thus listing test results for this.

 

[zupos40]

you cant issue a EIC for the rest of the install... you didint install it!

Ryanryan I do issue an EIC in the box that asks what this certificate covers I write replacement of CCU upgrade of bonding and all no compliances that were not updated or checked, ie routing of cables, installation methods, current carrying capacity etc, proof suplementary bonding, sufficient socket outlet, heights of outlet etc, no earthing in lighting, cooker isolator over cooker or hidden.

I do not have a cert with me, but there are 3 tick boxes, 1 new installations, 2 alteration to existing and 3 additional circuits.

I used to price for upgrade of new main bonding and gas and water I also inform client in writing if there is no earthing in the lighting etc and leave a note a new CCU (now you can buy printed labells) if this is not rectified, that no metal accessaries can be connected to said circuit.

If I find breaks in ring I derate breakers, no earth, then I do not do job unless client agrees to rewire (basically no earth in S/O and class 1 equipment in a number 1)

It much easier if you tested installation before changing CCU, I not an NIC member so not such about there rules, but I do use EIC for additional circuits and extension to circuits, personally only use Minor works for like for like replacement of existing wiring or accessiaries.

 

[chocolate]

But you can't issue an EIC for just a fuse board change - there are pages that you have to complete that relate to all the circuits that are connected to that fuse board.

As soon as you change a circuit protective device for any circuit, you are responsible for the circuit it is connected to. Irrespective of whether you did any other work on that circuit.

 

[Spudnik]

If you upgrade a CU, you do NOT automatically become responsible for the whole installation.

All documentation should be clearly noted and the periodic label on the CU should be marked "CU CHANGE ONLY"

As i said before, any major non compliances (main bonding etc) must be brought up to date also.

 

[TPES]

But you can't issue an EIC for just a fuse board change

yes you can, infact you have too..

Or have i read what you wrote wrong?