1800V DC Positive Traction Cables

Application

These DC power cables are used for urban railways for 1500V DC traction power system with feedback current and return current, suitable for fixed installation. The cables are suitable for installations in ducts, tunnels, and cable troughs or on the cable bridges etc.

Standard

  • IEC60092
  • BS 7655
  • IEC60502
  • BS 6883 Type 657 SW4

Cable Construction

1800V-DC
  • Conductor: Class 2 stranded annealed bare copper conductors to BS EN 60228: 2005 (previously BS 6360).
  • Core Wrapping: PETP (Polyethylene Terephthalate).
  • Insulation: EPR, GP8 to BS 6899 / BS 7655 RS2 / ICEA S-95-658.
  • Sheath: Thermosetting LSZH compound SW4 or LRS1 to BS 7655 / ICEA T-33-655, with enhanced oil resistance, and minimum tear resistance.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section mm² 70 95 120 150 185 240 300 400 500
Maximum DC Conductor Resistance Ω/km 0.277 0.21 0.164 0.132 0.108 0.0817 0.0654 0.0495 0.0391
Minimum Insulation Resistance MΩ.km 539 472 433 390 355 313 280 245 221
Assigned Continuous Current Rating A 330 400 464 530 612 648 853 1010 1195
Conductor Short Circuit Current 1s kA 10.0 13.5 17.1 21.4 16.4 34.3 42.9 57.2 71.5
Voltage Rating KV 1.8

Mechanical and Thermal Properties

  • Minimum Bending Radius: 6×OD
  • Temperature Range: -40℃ to +90℃ (during operation); -25℃ to +60℃ (during installation)

Dimensions and Weight

Cable Code No. of cores&
Nominal
Conductor Cross
Sectional Area
No.×mm²		 No. &
Nominal
Diameter of
Strands
No/mm		 Nominal
Insulation
Thickness
mm		 Nominal
Sheath
Thickness
mm		 Nominal
Overall
Diameter
mm		 Nominal
Weight
kg/km		 Polarity
RF6883-DZ1-U-1800P-1G70 1×70 19/2.14 4.0 2.0 20.3 1371 Positive
RF6883-DZ1-U-1800P-1G95 1×95 19/2.52 4.0 2.0 21.7 1641 Positive
RF6883-DZ1-U-1800P-1G120 1×120 37/2.03 4.0 2.2 23.6 1958 Positive
RF6883-DZ1-U-1800P-1G150 1×150 37/2.25 4.0 2.2 19.3 2295 Positive
RF6883-DZ1-U-1800P-1G185 1×185 37/2.52 4.0 2.3 27.3 2682 Positive
RF6883-DZ1-U-1800P-1G240 1×240 61/2.25 4.0 2.3 30.7 3341 Positive
RF6883-DZ1-U-1800P-1G300 1×300 61/2.52 4.0 2.4 33.3 4016 Positive
RF6883-DZ1-U-1800P-1G400 1×400 61/2.85 4.0 2.4 40.3 5071 Positive
RF6883-DZ1-U-1800P-1G500 1×500 91/2.65 4.0 2.5 42.3 6275 Positive
RF6883-DZ1-U-1800P-1G630 1×630 127/2.52 4.0 2.5 43.4 6980 Positive
RF6883-DZ1-U-1800P-1G800 1×800 127/2.85 4.0 2.7 50.6 8785 Positive