PCM 1 PAIR SCREENED INTRAOFFICE CABLE

PCM 1 PAIR SCREENED INTRAOFFICE CABLE
Cable Structure
1, Conductor is made of solid wire of plain annealed high conductivity copper
Nominal Diameter: 0.5 mm Tolerance: +10%
2, Insulation made of Polyethylene complying to BS 6234
Nominal Thickness: 0.15 mm Tolerance: +/-10%
2 insulated conductors twisted together with a lay length no longer than 50 mm.
3, Non-hygroscopic tape surrounding one pair of insulated conductor.
Nominal Thickness: 0.025 mm Tolerance: +10%
4, Drain wire made of tinned annealed copper conductor
Diameter: 0.5 mm Tolerance: +10%
5, Screen made of Aluminium Mylar tape
Nominal Thickness: 0.05 mm Tolerance: -10%
6, Outer jacket made of Low Smoke Zero Halogen compound in grey / orange
Diameter: 0.5 mm Tolerance: +10%

Electrical Characteristics:
Dielectric Strength 1 kV rms at 50 Hz for 1 full minute without breakdown
Conductor Resistance less than 95 ohms/km at 20°C
Insulation Resistance Not less than 5 Gigaohms-km at 500 Vdc for 1 full minute
Mutual Capacitance 75 nF/km maximum at 1 kHz
Characteristic Impedance 100 ohms +/- 20% measured between 772 kHz and 3156 kHz
Maximum Attenuation 2.5 dB at 360 kHz 4.0 dB at 772 kHz
per 100 meter 7.5 dB at 3156 kHz
Equal Level Far-end Better than 85 dB/15 meter (10 kHz – 1 MHz)
Crosstalk Attenuation The value of equal level far-end crosstalk attenuation over 85 dB
at a resistance 110 ohms between 10 kHz and 1.0 MHz.