No CPC in lighting circuits / Fire damage

[Pete999]

So looking at indent 10.7, it seems it is not permitted to reconnect a cpc free circuit when changing a CU as there is no supervision to ensure that nobody swaps accessories for conductive ones!!

 

[Andy78]

The ESF Best Practice Guide 1, actually states the opposite for a domestic dwelling, indent 10.7.

It very much does.

This info seems to be at odds with flow chart A2 which states that in a planned CU change situation the affixing of a label to the CU telling users not to change accessories is enough to give the CU change the go ahead.
This chart appears to be for use in dwellings, as mentioned in indent 10.7, as the last step is to notify the work. This step would not be applicable to other installations apart from dwellings.

 

[Ian1981]

So looking at indent 10.7, it seems it is not permitted to reconnect a cpc free circuit when changing a CU as there is no supervision to ensure that nobody swaps accessories for conductive ones!!

That’s why it’s important to attach a warning label at the CU stating that no class 1 accessories are to be fitted to the lighting circuit with no cpc.
Don’t know who came up with such a label tho as it’s not in bs7671?

 

[Andy78]

That’s why it’s important to attach a warning label at the CU stating that no class 1 accessories are to be fitted to the lighting circuit with no cpc.
Don’t know who came up with such a label tho as it’s not in bs7671?

Does a label class as effective supervision though ?

If the end user cannot be trusted to heed information imparted verbally and written on a certificate, what magic exists in the label to change things ?

 

[Pete999]

Does a label class as effective supervision though ?

If the end user cannot be trusted to heed information imparted verbally and written on a certificate, what magic exists in the label to change things ?

Not in a Million years,

 

[bigspark17]

So looking at indent 10.7, it seems it is not permitted to reconnect a cpc free circuit when changing a CU as there is no supervision to ensure that nobody swaps accessories for conductive ones!!

Your never going to stop diy taking place, even if there is a cpc there they may not connect it, you cant stop everything, we dont put sockets in bathroom but that doesn't stop someone putting an extension lead in the bath!!?

 

[Ian1981]

Does a label class as effective supervision though ?

If the end user cannot be trusted to heed information imparted verbally and written on a certificate, what magic exists in the label to change things ?

Because the regulations assume electrical work to be carried out by competent persons electrically skilled.
a warning label clearly on view at the CU should not be missed by anyone skilled carrying out electrical work as the lighting would be isolated at the CU. However we don’t live in the fairytale that bs7671 wants us all to live in and the inevitable DIY jobs will ignore the warnings.
Like I said tho I’m not sure where this requirement for the label has gone from?
I’m assuming the ESC / best practice guide to which the likes of Napit and the Niceic seem to endorse this warning label method as a last resort.
No I don’t think a warning label will be classed as suitable supervision as it’s not under the control of skilled or instructed persons

 

[Pete999]

Because the regulations assume electrical work to be carried out by competent persons electrically skilled.
a warning label clearly on view at the CU should not be missed by anyone skilled carrying out electrical work as the lighting would be isolated at the CU. However we don’t live in the fairytale that bs7671 wants us all to live in and the inevitable DIY jobs will ignore the warnings.
Like I said tho I’m not sure where this requirement for the label has gone from?
I’m assuming the ESC / best practice guide to which the likes of Napit and the Niceic seem to endorse this warning label method as a last resort.

ELECTRIC MAGIC!!!! !!!!

 

[Ian1981]

ELECTRIC MAGIC!!!! !!!!

Eh? Come again??

 

[Pete999]

Eh? Come again??

Sorry meant for someone else ignore please, appologies