Application

TK 33 - U is being applied to secondary telephone network lines. It is laid on support on the ground and other points of support as well.

The use of this cable in power purposes is not permitted.

Construction

• Conductor is a soft annealed copper wire of 0.6mm and 0.8mm diameter

• Insulation is of solid PE, type ETI1,according MKS N.CO.195

• Four different coloured insulated conductors are twisted to star quad which is the basic element of this cable.

• Cable core is made of concentric twisted star quads.

• Core wrapping is realized with two polyester bands with orange thread under them as the mark of FKN.

• Supporting element of the cable is strand made of zinc-plated steel wire.

• The outer sheath of the cable is made of black PE, type ETP1 as per MKS N.CO.195

Technical data

• Permissible temperatures
- at laying -5°C до + 50°C
- stationary -30°C до + 50°C

• Permited voltage,max
- at AC 150 V
- at DC 210 V

• Conductor Ø mm 0,6; 0,8

• Loop resistance
- at max 20°C Ω/km 130; 73,2

• Loop resistance mean value
at 20°C Ω/km 126; 72

• Insulation resistance
- min. at 20°C (MΩkm) 10 000

• Mutual capacity max. at 800 Hz
- cable with 1quad (nF/km) 52
- with several quads (nF/km)42

• Capacitance unbalance max. 800 Hz
- K₁ - 100% value (pF/km) 2700
- 98% value (pF/km) 1350

- K_9-12 - 100% value (pF/km) 1000

• Dialectric strenght
- (DC) 2 sec. core/core (kV) 6;8

• Attenuation at 800 Hz and 20°C approx.
- at cable with 1 quad (mN/km) 120; 95
- for other cables (mN/km)110;85

• Permited bending radius, min. (mm) 15x Ø _kabel