Split concentric cable

[sparky1888]

Can anyone tell me what table to use for CCA of split concentric in BS 7671?

 

[Rockingit]

You'll almost certainly need to refer to manufacturers data for this

 

[bill01803]

Doncaster have info on their site

 

[i=p/u]

 

[brianmoooore]

Why doesn't that table show current capacity for 10mm2?

 

[i=p/u]

Il ring mr Cleveland now

 

[pc1966]

Doncaster cable data sheet has it:

https://www.doncastercables.com/uploads/SPLIT_CONCENTRIC_Data_Sheet.pdf

Values in the data sheet are only marginally higher than 70C PVC cables (e.g. Table 4D2A column 8), so you can probably use those tables if you are using it in other installation methods.

 

[brianmoooore]

I've always thought 10mm2 SC didn't exist. None of my wholesalers kept it in stock.

 

[MJPD29]

I've always thought 10mm2 SC didn't exist. None of my wholesalers kept it in stock.

It definently does exist not sure why they don't show it on that sheet

 

[sparky1888]

Doncaster have info on their site

Doncaster cable data sheet has it:

https://www.doncastercables.com/uploads/SPLIT_CONCENTRIC_Data_Sheet.pdf

Values in the data sheet are only marginally higher than 70C PVC cables (e.g. Table 4D2A column 8), so you can probably use those tables if you are using it in other installation methods.

Cheers mate!