Metallic cables

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Vydal: KABELOVNA DĚČÍN PODMOKLY, S.R.O.

Strana 20 z 124







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TELECOMMUNICATION 3.km min. years D outside cable diameter Packing drums. 5.6 0. 10D Cable lifetime min.20 TK GM . Copper wire. 1.0 Insulation resistance min. Core insulation foam skin PE. 5..x4x0. . Laminated aluminium foil. Crepe paper. outer jacket, black. 2.8 Max.. loop resistance Ω/km 300. Transmission element each cores are twisted star quad, the quads are stranded units, the units are stranded the cable core. min. 4.8) 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.4 (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. min. Filling material.0 72. Vss 250 250 250 Description materials: 1.6; 0. Cable core filled. Electrical parameters (20 °C) Conductor diameter 0. 6. GΩ.0 130