XLPE Insulated Electrical Cable For Rated Voltage 3.6/6KV~26/35KV

For  XLPE insulated  power  cable, either  chemical  method or  physical method  is employed to  transform  the molecular  structure of  PE  from chain  into three-dimensional  network,  i.e. thermoplastic  PE  is transformed  into thermosetting XLPE. After cross-linking,  the thermal and mechanical properties  of PE have been greatly improved while its excellent electrical property are still retained.

The maximum permissible operating  temperature of the conductor of a  XLPE insulated power cable is 90  which resistance is  higher than  that of  PVC or  PE insulated  power cable.  The cable  has the  advantage of  simplicity in construction, lightness  in  weight, convenience  in application  besides its  excellent electrical,  thermal, mechanical and anti-chemical corrosion properties. It can also be laid with no limitation of level difference along the route.

Product standard

The  product is  manufactured  according to  the  standard  of GB/T12706-2002  “Extruded  solid  dielectric power  cables  for rated voltages from l KV (Um=1.2KV) to 35KV (Um=40.5KV)”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 3.6KV/6KV~26/35KV.

Operating characteristics

Rated power-frequency voltage U0/U: 3.6/6KV~26/35KV.

1.Max. Permissible continuous operating temperature or conductor:90℃.

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

3.The ambient temperature under installation should not below 0℃.

4.The ending radius of a single-core cable should not less than 20 times of the cable diameter.

The bending radius of a three-core cable should not less than 15 times of the cable diameter.

Voltage designation

The rated voltage of the cable for a given application shall be suitable for the operating conditions in the system in which the cable is used, and is expressed in the form of U0/U (Um) KV. Where:

U0—The rated power-frequency voltage between conductor and earth or metallic screen, 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 used.

Type of cable