Compliance certificates

[Neelix]

Can you post a new photo of the CU showing the breakers ?

[ericmark]

Residual current device (RCD). A mechanical switching device or association of devices intended to cause the opening of the contacts when the residual current attains a given value under specified conditions.

Miniature circuit breaker (MCB). A device capable of making, carrying and breaking normal load currents and also making and automatically breaking. under pre-determined conditions, abnormal currents such as short-circuit currents. It is usually required to operate infrequently although some types are suitable for frequent operation.

(RCBO). Combination or RCD and MCB in one device.

Alternating current (AC) Direct current (DC)

TN-C-S system. A system in which neutral and protective functions are combined in a single conductor in part of the system.
TT system. A system having, one point of the source of energy directly earthed, the exposed-conductive-parts of the installation being connected to earth electrodes electrically independent of the earth electrodes of the source.

For RCD types try this link https://electrical.theiet.org/wiring-ma ... -rcd-type/

LABC = Local Authority Building Control.

[Dxc712]

Can you post a new photo of the CU showing the breakers ?

[Dxc712]

The electrician is chasing payment but I still haven't received the part P building certificate.

The initial work was done nearly six weeks ago.

He told me over a week ago when I received the electrical installation certificate that the part P certificate will take a few more days.

I've asked him when I will receive the part P certificate and he said that it is out of his hands.

[Neelix]

Then maybe hold on until next week to see if it arrives. Given their approach so far paying their bill and not receiving the Part P could leave you with no leverage.

They’ve made you wait to get it correct (with our help) so it’s now their turn to wait.

This is very basic stuff for competent sparks to deal with

[Dxc712]

Then maybe hold on until next week to see if it arrives. Given their approach so far paying their bill and not receiving the Part P could leave you with no leverage.

They’ve made you wait to get it correct (with our help) so it’s now their turn to wait.

This is very basic stuff for competent sparks to deal with

The electrician is starting to get unpleasant about the way he's chasing the payment.

I've contacted the local authority's building control and they have no record of anything yet.

[Dxc712]

Then maybe hold on until next week to see if it arrives. Given their approach so far paying their bill and not receiving the Part P could leave you with no leverage.

Thanks. What's the procedure for obtaining a Part P certificate?

Who does the electrician have to go to and how would I receive the certificate?

[ericmark]

Yes I realise the names are jargon to you, so a distribution unit or board often called a DB covers fuse boards, and the more modern consumer unit, the consumer unit is a type tested DB, and to get the type testing it has to only contain items it was tested with, so if the CU is made by fusebox, then the RCBO must be fusebox, and if made by British General then must use BG RCBO we are not permitted to mix and match.

There is good reason for this, the bus bar may be too high/too low, etc, so the terminal when torqued up seems tight, but in fact is not, so can cause over heating.

The installation certificate can only be written/signed by those who have done the work, and clearly the installation certificate should have same person on it as the compliance certificate, in England there is a provision for third party inspection and testing, but very few scheme providers have taken up the option, so it is rather rare.

[Neelix]

Then maybe hold on until next week to see if it arrives. Given their approach so far paying their bill and not receiving the Part P could leave you with no leverage.

Thanks. What's the procedure for obtaining a Part P certificate?

Who does the electrician have to go to and how would I receive the certificate?

The installer registers the job with their CPS - and it’s either posted or emailed to the customer.

I was with NAPIT and you could instantly download a copy, and in my case I sent the invoice, electrical certificate and the part p compliance on one email

Best you ask the spark - he should know the process and timescales and it’s in his best interest to answer you

[ericmark]

Part P requires either a completion certificate or a compliance certificate, it depends on if the spark is a scheme member or not. When I got my last compliance certificate it required me as customer to down load and print it. All the spark did was send me a link.

[Dxc712]

This has been resolved.

Thanks for the advice.