Copper core and aluminum core plastic insulated power cable with rated voltage of 26/35kV and below

• Reference Standards

The product is manufactured according to the standard of GB12706-2020 or IEC, BS, DIN and  ICEA upon request.

• Applications 

The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 26/35kv. 

• Operating characteristics 

-- XLPE  Insulated  Electrical Cable for rated power frequency voltage  Uo/U:3.6/6kV-26/35kV

·   Max. permissible continuous operating temperature of conductor:90°C.

·   Max. short-circuit temperature of conductor shall not exceed 250°C.

·   The ambient temperature under installation shall not below O°C.

·   The bending radius of single-core cable shall not less than 20 times of the cable diameter.

-- XL.PE Insulated Electrical Cable for rated power frequency voltage Uo/U:0.6/kV.

·   Max. permissible  continuous  operating temperature  of conductor:90°C.

·   Max. short-circuit temperature of the conductor shall  not exceed 250℃ (5s  maximum duration).  

·   The ambient temperature under installation shall not below O°C.

·   The bending radius of a cable shall not less than 15 times of the cable diameter.

-- XL.PE Insulated Electrical Cable for rated power frequency voltage Uo/U:0.6/1kV.

·Max. permissible  continuous  operating  temperature  of  conductor:70°C

·Max. short-eircuit temperature of the conductor shall  not exceed   160°C.

·(5s  maximum duration)

· The ambient temperature under installation shall not below O°C.

 ·The bending radius of a cable shall not be less than 15 times of the cable diameter. 

•  Voltage designation 

The  rated  voltage  of  the  cable  for a given  application  s hall be suitable  for  the  operating   conditions in the system in which the cable is used, and is expressed in the form of  Uou  (tn)kV   Where:

·   Uo-: The rated power-frequency  voltage between conductor and screen or metallic-   sheath, for  which  the cable  designed;

·   U-:  The rated power-frequency voltage between conductors,  for which the  cable designed;

·   Um-: The maximum value of the “highest system voltage" for which the equipment may be operated.

The Uo values of cables for three-phase system are recommended as follows: 

The first type is used for single-phase grounding fault time not more than  1 min at a time, and it can also be used for systems with a maximum time of no more than 8h and a cumulative annual total of no more than  12h. The second type is used in the system with longer grounding fault time and the occasions with higher      requirements for cable insulation performance.