Daetwyler-Guideline 
for use of Cat. 7 cable in Class E - Links

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(Cat.  7 and Class  E  DIN 44312-5)
To keep the electrical values of Cat. 7 - cables, you have to consider the following steps:
Shield: Overall tinned copper braid and pair in ALU/PETP-foil
f.e. UNINET 7002 4P


Copper cable 7002
f. e. UNINET 8002 4P

Uninet 8002 4P
Shield: Overall tinned copper braid and quad in ALU/PETP-foil
f.e. UNINET 3004 n x 2P (n = 2, 4, 6, 8, 10, 12, 16)

3004 nx2P
f.e. UNINET 3004 4P

3004 4P

* length of copper braid is depending on used outlet or panel 
** length is depending on used outlet or panel