35kV overhead insulated wire manufacturer JKLGYJ-35KV-120/25 overhead insulated wire 35KV

Description :

　　Overhead lines with voltage levels of 35KV and above have a large distance between lines, and it is almost impossible for foreign objects to overlap between the two lines. In addition, the use of insulated wires for high voltages is meaningless. So insulated wires are not used for 35KV and above.

　　The product complies with GB12527-90 "Rated Voltage 0 Manufacturing standards such as 6/1kV and below overhead insulated cables and IEC60502 rated voltage 1-30kV extruded insulated power cables and accessories.

　　·Usage characteristics

　　The rated voltage Uo/U is 0 6/1kV。

　　The long-term allowable working temperature of cable conductors shall not exceed:

　　PVC and polyethylene insulated overhead cables: 70 ℃; Cross linked polyethylene insulated overhead cable: 90 ℃.

　　During a short circuit (lasting no more than 5 seconds), the temperature of the cable conductor should not exceed:

　　PVC insulated overhead cable: 160 ℃; Polyethylene insulated overhead cable: 130 ℃; Cross linked polyethylene insulated overhead cable: 250 ℃.

　　The ambient temperature during cable laying should not be lower than -20 ℃.

　　Allowable bending radius of cable:

　　When the outer diameter (D) of the cable is less than 25mm, it should not be less than 4 times the outer diameter of the cable; When the outer diameter (D) of the cable is equal to or greater than 25mm, it should not be less than 6 times the outer diameter of the cable.

　　When cables are used in AC systems, the rated voltage of the cable should be at least equal to the rated voltage of the system; When the cable is used in a DC system, the rated voltage of the system should not exceed 1 5 times.

AfterSalesService :

• 35kV overhead insulated line manufacturer