CN Cable Group Co., Ltd.
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Use for Outdoor/indoor two cores flat 8 configuration telephone drop wire
Application:
Drop cable is for connecting power amplifier and broadcasting systems, transmitting the audio signals amplified by the amplifier
Construction:
1: conductor : 0. 5mm, 0. 6mm, 0. 8mm or 0. 9mm bare/ tinned copper wire request
2: insulation: HDPE, PVC or request
3. The assembly should be consisting of two conductor lay parallel insulated to form a figure 8 configuration. It should be possible to separate the drop wire into two fully insulated conductors by cutting along the interconnecting web.
4. Polarity identification should be provide by a single ridge tracer longitudinally molded along the jacket throughout the intere length the drop wire unaided eye and to the touch.
Data sheet
| Number of core | Minimum insulation thickness | Maximum cable dimension diameter * height | Nominal weight |
| mm | mm | kg/km | |
| 0.71mm conductor ,2.75mm insulated wire | |||
| 2 | 1.02 | 2.75*6.0 | 20 |
| 0.81mm conductor ,2.41mm insulated wire | |||
| 2 | 0.8 | 2.5*5.4 | 23 |
| 0.91mm conductor ,2.41mm insulated wire | |||
| 2 | 0.75 | 2.7*5.6 | 25 |
| 1.14mm conductor ,4.18mm insulated wire | |||
| 2 | 1.52 | 4.44*9.4 | 34 |
Electrical requirements and tests:
Sparkling: Voltage application during the manufacturing process (after the extrusion) in order to detect pores or other insulation failures
Minimum insulation resistance at 15.6 ºC:
- Between conductors: 92 Mohm/km (500 VCC power must be applied during 1 minute. This test must be realized dry. )
Minimum dielectric breakdown strength at VCC:
- between both conductors: The insulation must resist during 3 minutes a continuous voltage of 7500 VCC. This test must be realized dry)
Mutual capacity: 64 - 79 nF/km at 1 KHz
Characteristic impedance: 124 ± 20 Ohms
| Maximum Individual | Maximum Average | |
| 1 KHz | 1.3 dB/km | 0.95 dB/km |
| 150 KHz | 5.2 dB/km | 4.70 dB/km |
| 772KHz | 18.0 dB/KM | 15.00 dB/km |