Telephone cable fitted with solid polyethylene insulation of conductors, and shield made of alum- polymer tape, in polyethylene sheath with hydrophobic filling.
Installation in telephone ducts, conduits and wells; installation along building walls; hanging on overhead communication lines in high humidity conditions.
Conductor - Flexible copper wire
Insulation - Insulating high-pressure polyethylene (HPPe)
Filler - Hydrophobinol
Wrapping - Mylar film and/or bag paper
Shield - Alum-polyethylene tape with tinned copper wire base
Sheath - Light-stabilized high-pressure polyethylene
OPERATION AND INSTALLATION CONDITIONS:
Operating temperature - from -50°C to +50°C;
Max tensile load of cable during installation - 50N/mm2 of total cross-section of conductor;
Minimum service life under normal operating conditions - 25 years;
Primary application - installation in high humidity conditions in conduits, tunnels, wells, telephone ducts and installation on building walls or hanging on overhead communication lines;
Installation temperature - not below -10°C;
Installation bends - at least 10 sheath diameters.
Electrical resistance of conductors per 1 km length at temperature of 20°C, Ohm: 0.32 mm in diameter-216+/-13;
0.40 mm in diameter - 139+/-9;
0.50 mm in diameter - 90+5.9/-6.0;
0.64 mm in diameter - 55+/-3:
0.70 mm in diameter - 45+/-3;
Electrical resistance of insulation per 1 km length at temperature of 20°C, MOhm: At least - 5000;
Operating capacity, millimicrofarad, per 1 km length:
PRIMARY MANUFACTURED ASSORTMENT
Type of ТРРерЗ
Diameter of conductor, mm
Number of pairs in cable
10*2, 20*2, 30*2, 50*2, 100*2, 200*2
Cable is delivered in coils or wooden drums as per GOST 5151-79, in construction lengths based on parity, from 120 m to 500 m and more.