Presence of earthing arrangements for combined protective and functional purposes.

[WSparky 10]

Looking for an example of "Presence of earthing arrangements for combined protective and functional purposes" I know protective conductor is Green/ Yellow and Functional is Cream and I know the difference between them but could you give me a couple of examples of where these would be combined please. 

[Andy™ 2,575]

try answering yourself first and someone will tell you youre right or where you went wrong. were not here to do your homework for you

[WSparky 10]

Thank you for the reply Andy. I have seen a functional conductor on a telecommunications system and I have obviously seen a protective conductor. But I am struggling to find any information on where I could find it combined. How would it work with the colouring of the conductors if they are combined?