Blasting Field Telephone Cable Copper Lan Cable Military Grade Three copper
and four steel
Field Telephone Cable is short for "field cover line". The core of the wire is an
electrical signal transmission line made of twisted copper wire and
steel wire and covered with insulating material. It is generally
used for audio telephone communications, and can also transmit
telegrams, low-speed data, and carrier phones. Divided into medium,
light and ultra light. It is easy to carry and retract, has certain
flexibility and mechanical strength, cold resistance, high
temperature resistance, wear resistance, and can be used
repeatedly. Mostly used for military short-range, small-capacity
communications
Military Grade Field Telephone Cable Strong pulling force, anti-aging, military grade products! Scope
of application: audio telephone, mining, oil field exploration,
cable broadcasting, etc. under field conditions, can be elevated or
laid.
Application:
1. Field communication telephone lines,
2. Mining and firing of mines,
3. Oilfield exploration,
4. Water well measurement,
5. Use of cable broadcast line
6. Elevated or laying.
Technical Specification of Field Telephone Cable:
| Ser | Description | Specification |
| a | b | c |
| 1 | Apparent Shape | Double Wire(Twisted) |
| 2 | Color | Black or lvory |
| 3 | Conductors(Physical Characteristics): |
- Number of Strands
| 07 Nos |
- Number of Tin covered copper Strands
| 04 Nos |
- Number of Zinc covered steel Strands
| 03 Nos |
| d. Diameter of each Strands | 0.3mm+0.01mm |
| 4 | Thickness of insulation(Polyethylene) | Minimum 0.45mm |
| 5 | Thickness of Polyamide Jacket(Nylon) | 0.15mm(Average) |
| 6 | Overall diameter of single conductor | Maximum 2.2mm |
| 7 | Breaking load for two wires conductor | Minimum 80Kg |
| 8 | Cutting load test | 55lb(Average)/25Kg(Average) |
| 9 | DC Loop Resistance | 148Ohm/Km(at20℃) |
| 10 | Insulation Resistance | 2000M Ohm/Km(Minimum) |
| 11 | Dielectric Strength Test | 1000V AC(Minimum) |
| 12 | Weight of Zinc Cover for each steelStrands | Minimum 25gm/Kg |
| 13 | Weight of Tin Cover for each coppstrands | 8.75-24.8 gm/Kg |
| 14 | No of Twist/m | 14-16 Nos(Average) |
We are a military telephone line supplier and a custom-made aramid
telephone line manufacturer for foreign customers. We produce
blasting lines and wires for coal mines.
