Thank you all for all information, I appreciate that very much.
This is what I am going to do :
First find a Relacom or Eltel, I understand they have and use the correct cable.
If not possible then I try to buy the ELLC cable, I do not know if I can purchase directly from Selga. Otherwise checking around in the Kristinehamn - Karlskoga area.
If that cable is to expensive or what else I go for the Mat_o solution, put the telcom line and the steel cable in a garden-hose.
Again, thank you all
I appreciate it very much that you all are so very kind to help me and to do it in English. I think that my Swedish is too bad so far even I do my best.
I have to learn a lot, Svenska is not easy if you do not live in Sweden and do not use it every day.
Tack så mycket
Nol