The P-275 cable is a lightweight field communication cable used for communication over a short distance. It was produced according to GOST 10041-62 until January 1, 1977 [1] .
Construction
It consists of a multiwire circular conductor (it consists of 6 rated steel or tinned wires and one copper wire between them) and PVC plastic insulation [2] .
Characteristics
- Diameter of steel wire: 0.2 - 0.25 mm [2]
- The diameter of the copper wire: 0.26 - 0.27 mm [2]
- Insulation thickness: 0.5 mm [2]
- Stranding pitch of insulated conductors: 70 - 90 mm [2]
- Voltage test for passage: 2000 V [2]
- Resistance of a pair of cores at 20 ° С: not more than 500 Ohm / km [2]
- Insulation resistance at 20 ° С: at least 1 MΩ · km [2]
- Cable breaking strength: not less than 600 N [2]
- Construction length: 600 - 750 m [2]
- Operating temperature range: −40 to + 50 ° C [2]
Notes
- ↑ CABLES P-272, P-274, P-275
- ↑ 1 2 3 4 5 6 7 8 9 10 11 Cable P-275