The product is composed of tight conductor and weather resistant insulation and corresponding semi conductive shield, which has the mechanical property of the overhead line, and the safety transmission characteristic of the power cable. Compared with the bare wire, it has the characteristics of small spacing, high security and reliability, and good resistance to atmospheric aging. It is a priority selection of cable in urban and urban power transmission projects.
Characteristics of overhead insulated power cable:
1) rated voltage: 1kV, 10kV.
2) the maximum operating temperature of the cable conductor;
Cross linked polyethylene insulation: 90℃
High density polyethylene insulation: 75℃
3) the maximum temperature of the cable conductor (the longest duration does not exceed 5S);
Cross linked polyethylene insulation 250℃;
High density polyethylene insulation 150℃;
4) the ambient temperature should not be less than -20℃;
5) Allowable bending radius of cable:
Single core cable: 20 (D+d) + 5%mm;
Multi core cable: 15 (D+d) + 5%mm;
Among them: D is the actual diameter of the cable.
d is the actual diameter of the cable conductor.
Conductor: copper or aluminum core
Bending radius: single core cable: 20[D+d] + 5%mm
Multi core cable: 15[D+d] + 5%mm
(D – actual outside diameter of the cable; d – the actual diameter of the cable conductor)
Temperature range: 0℃ -90℃
Main technical performance of 10KV JKY/JKLY PE insulated overhead cable:
|10KV JKY/JKLY single core PE insulated overhead cable|
|Nominal cross section (mm2)||Reference diameter (mm)||The approximate weight (kg/km)|
|Copper core||Aluminium core|