whats the name of this old cable?

[Dean Williams]

Hi folks
i'm part way through testing a primary school. the section board is fed from the main board in a 4 core cable thats looks like SWA but is lead coated (with lead being used for earth) and its cores are rubber/vir.
is this PILC or just lead covered rubber cable. does it have a specific name. It dates from about 1965.

thanks

 

[Guest55]

as you said , its pilc.