35KV CCV Line

Application

The line is designed for manufacturing 6～35 kV XLPE cable of compressed Cu. Al. stranded conductor.

The pipe arrangement is of semi-catenary declination type, adopt XL pipes with short circuit heating, nitrogen as the medium and water cooling type. The finished XLPE cable measure up to GB/T 12706-2008 standard.

CCV line technical data

Voltage class      　                 XLPE6～35 kV

Cross section of conductor             Cu. 35～630 mm2   Al. 50～800 mm2

Max. weight of cable  　               10 kg/m 

Max. diameter                        Φ75 mm

Extruded thickness      　            Φ65 Extruder 0.5～2.0 mm

         Φ150Extruder 2.5～10.5 mm 

         Φ90 Extruder 0.5～2.0 mm

Vulcanizing tube length

Total length of tube   　               102 m

Heating length    　              36 m  6m×6

Pre-cooling length    　           12 m  6m×2

Water cooling length    　         54 m  6m×9

Area of main building platform          （L×W）≥24 m×18 m

The height of third floor  　             10 m

Length of workshop      　            ≥130 m

Nitrogen              Pressure: 2.0～2.5 MPa     Purity: 99.5 %

       　            Consumption: 0.4～1.8 m3 /h  Nitrogen tank volume:5 m3

Cooling water         Pressure: 0.2～2 MPa Consumption 12.5 m3 /h

Compressed air       Pressure: 0.6～0.8 MPa Consumption 0.8 m3 /h

Power source requirement

Separate transformer, installed gross capacity≥ 750 kVA

                     Voltage: 380 V ± 10 %

                     Frequency: 50 Hz. ± 1 Hz

Power supply mode: 3-phase, 5-wire,(N wire is separate, not connected to the ground)

                    Earthing cable: separate earthing resistance is less than 4Ω.