5.
Transmission element each cores are twisted star quad, the quads are stranded units,
the units are stranded the cable core.8)
Specification: PTT 7/81
Application
» local network
» can laid into cable ductand and directly into ground
Environmental conditions
Temperature ranges for laying and assembly –10 +60 °C
Operation and store temperatures –40 +70 °C
Permitted minimum bending radius min. loop resistance Ω/km 300. Core insulation foam skin PE.4 (0. Vss 250 250 250
Description materials:
1. GΩ.
Electrical parameters (20 °C)
Conductor diameter 0.6; 0.
TELECOMMUNICATION
3. 1.km min. min.x4x0..0 130.
. Cable core filled. outer jacket, black.
6.
4.20
TK GM
. Copper wire..0 72. 10D
Cable lifetime min. Laminated aluminium foil.
2. min. Crepe paper.6 0. 5
Mutual capacitance nF/km 42
Capacity unbalance k1
at 800 pF/500 800 800 300
Effective test voltage wire/wire 500 500 500
Effective test voltage wire/shield 2,000 2,000 2,000
Operating voltage max.4 0.
5. Filling material.0
Insulation resistance min. years
D
outside cable diameter
Packing drums.8
Max
