Current Carrying Capacity 0.0225" & 0.04" 11kV Cable

[fb599]

I'm trying to establish the current carrying capacity of the following old UK imperial cable sizes laid in ground c. 1940/50:

0.0225" and 0.04" 11kV three core copper conductors (7strand/phase) paper insulated, lead covered and steel wire armoured.

I have the values for steel belted but cannot find anywhere stranded outer armouring. I got the belted values from an old BS 480 sheet I had.

Thanks

 

[7anoter4]

I think you may use the current rating of the PILC/SWA/PVC cable as the single difference will be the bitumen serving instead of PVC covering and this is not so important. But, as it is a very old cable I think a derating of 20% will be required. See:

http://www.batt.co.uk/images/pics/4174bec107.pdf

and :

http://www.batt.co.uk/products/index.asp?area=2&p1=37&p2=144&p3=404

 

[Marmite]

Attached scan is from the AEI Cables general information booklet I have dating from 1959. I've included the ratings for belted and screened.
Regards
Marmite

 

[fb599]

Thanks for these. Exactly what I was looking for. Best Wishes,

fb599!