The Use Characteristics Of Aerial Cable
The overhead cable is used for AC rated voltage $literal of 0.6/1kv and below.
Use characteristics of aerial cable: PVC Insulated cable conductor Long-term operating temperature of not more than 70 ℃, short-circuit (maximum duration of not more than 5S) conductor maximum operating temperature of not more than 160 ℃;
Use of aerial cable products: for AC rated voltage 10KV, Overhead Cable 35KV overhead power cable
Use characteristics of aerial cable: the long-term working temperature of cable conductor is no more than 90 ℃, and the maximum operating temperature of the conductor is no more than 250 ℃ when short circuit (longest duration is not more than 5S);
Aerial cable uses: Suitable for AC rated voltage 35KV and below overhead power lines, in towns, Overhead Cable high-rise buildings and forest areas such as high security requirements for use.
Use characteristics of aerial cable:
① rated voltage of 1, 10KV.
Long-term operating temperature of ② aerial cable:
PVC (PVC), Overhead Cable polyethylene (PE) insulation should not exceed 70 ℃;
Xlpe (XLPE) insulation should not exceed 90 ℃.
③ the maximum temperature of an overhead cable conductor at a short circuit (maximum duration of not more than 5 seconds);
PVC insulation does not exceed 160 ℃;
Overhead Cable Polyethylene insulation does not exceed 150 ℃;
XLPE insulation does not exceed 250 ℃.
④ overhead cable Laying temperature should not be less than 20 ℃.
⑤ allowable bending radius of overhead cables:
1KV Overhead Cable
Outer diameter of aerial cable d<25mm ... 4 D;
Outer diameter of aerial cable d≥25mm ... 6D.
Technical performance of aerial cable:
① conductors shall be tightly pressed round stranded conductors.
② bearing stranded wire should conform to the requirements of table 10.
③ insulation should be used in black weathering PVC, Overhead Cable polyethylene and cross-linked polyethylene.
④ overhead cables shall withstand the specified AC voltage test for 1 minutes and the insulation shall not penetrate.
⑤ has insulated shielding 10KV overhead cable, Overhead Cable should carry out partial discharge test, its discharging power should not be less than 20PC.