Single pair cable designed for telephone communication and broadcasting systems.
Single pair cable for telephone communication and broadcasting systems is designed for operation at voltage of up to 380 V and frequency of up to 10 kHz at subscriber lines of telephone communication systems and wire broadcasting distribution networks.
Conductor - Flexible copper wire
Insulation - High pressure polyethylene (HPPe)
Sheath - Light-stabilized HPPe
OPERATION AND INSTALLATION CONDITIONS:
Operating temperature - from -60°C to +50°C;
Installation - in soils, telephone ducts, conduits, along building walls; the installation on overhead line supports is allowed for areas not subject to heavy glaze and strong wind.
Installation temperature - not below -5°C;
Max draft force at installation:
245 N for diameter of 0.9 mm;
294.3 N for diameter of 1.2 mm;
Minimum installation bends - at least 10 outer dimensions of cable;
The cable is flame-retardant if single installation is provided.
Minimum service life under normal operating conditions - 10 years;
Max electric resistance of conductors per 1 km length at temperature of 20°C, Ohm;
0.9 mm in diameter - 28.4;
1.2 mm in diameter - 16.0;
Electrical insulation resistance per 1 km length at temperature of 20°C, MOhm/km - at least 10000;
Max operating capacity, millimicrofarad/km:
50.0- for diameter of 0.9 mm;
56.0- for diameter of 1.2 mm
Type of PRPPM
Number of conductors in wire
Diameter of conductor, mm
Cable is delivered in coils, in lengths not shorter than construction ones.