Plastic boards under stairs

[TJC1]

Can anyone point me to reg that says about plastic boards under stairs or does one not exist

On an EICR and they have a plastic baord under the stairs.. C2 or C3?

 

[bill01803]

Can only be c3

 

[Ian1981]

421.1.201 deals with consumer units in domestic installations.
The regulation mentions nothing about location, however a risk assessment of the location of an existing plastic CU may lead the inspector to adding a code based on for instance , if it’s in a sole escape route or under a staircase where a fire could increase the risk of danger for escape or entry for say rescue.
Id personally never C2 any plastic CU based on material alone.

 

[andyb]

421.1.201
Although the stairs are for your judgement.

 

[Julie.]

There is no reg stating anything like that - the usual convention is:
No signs of damage - no comment
No signs of damage and in an escape route or under a combustible escape route - C3
Signs of thermal damage - C2/FI/C1 depending upon the condition - usually C2

 

[Ian1981]

I’d personally always comment if the CU doesn’t comply with the current regulations in the additional notes section , however I would not code it on the grounds of being simply plastic and say located near a front door but there’s rear access to the property etc.

 

[richy3333]

'CU in a domestic household premises is not metal or installed in a non-combustable cabinet, showing NO signs of thermal damage, located in the sole means of escape for a dwelling are'

Reg 421.1.201

C3

 

[Ian1981]

'CU in a domestic household premises is not metal or installed in a non-combustable cabinet, showing NO signs of thermal damage, located in the sole means of escape for a dwelling are'

Reg 421.1.201

C3

The regulation doesn’t say that, it mentions no location.
The location is commented on in the BPG 4 only which I think is what you have quoted?

 

[TJC1]

Cheers all, C3 it is

 

[richy3333]

The regulation doesn’t say that, it mentions no location.
The location is commented on in the BPG 4 only which I think is what you have quoted?

I quoted The Napit guide which lists the Reg they consider relevant. But, yes BPG also.

Either way a C3 for me under those specific circumstances

 

[Risteard]

Personally (assuming that it's in good condition and I have no reason to believe that the plastic has failed to meet non-combustibility requirements of BS EN 60439-3/BS EN 61439-3) I always give a C3 observation, regardless of whether it's located within the sole escape route or not.