To provide insulation and protecting for overhead line core cables, prevent short circuit accidents caused by incidental contact of tree branches or wildlife. Also used for railway contact network overhead line system, improve insulation performance to ensure the safe operation of railway line.

  • Anti-tracking
  • Operating temperature: -40℃ to 80℃
  • UV resistance, and abrasion resistance
  • Standard color: red (black, green and yellow are available on request)
  • Easy installation with hand tool

Technical properties:

Property Testing method Typical data
Tensile strength ASTM D 2671 ≥9MPa
Elongation at break ASTM D 2671 ≥550%
Dielectric strength (for 10KV) IEC 243 ≥25KV/mm
Dielectric strength (for 35KV) IEC 243 ≥42KV/mm
Dielectric constant IEC 250 ≤3.0
Volume resistance IEC 93 ≥1.0x10 Ω•cm
Adhesive to steel DIN 30672 0.5N/cm
Water absorption
ISO 62/23℃, 14days ≤0.5%
Flammability(Oi) ISO 4589 ≥27
Low temperature flexibility (-40℃,4hr) ASTM D 2671 No crack


Code Size(mm) Suitable conductor section Max. conductor diameter Standard packing
HB1571 18 ≤95mm2 18mm 20m/reel; 40m/carton
HB1571 20 120-150mm2 22mm 20m/reel; 40m/carton
HB1571 28 185-240mm2 30mm 20m/reel; 40m/carton
HB1571 38 300-1000mm2 38mm 20m/reel; 40m/carton
Related information:

The product is supplied as rolls with polybag and packed in a carton. Recommend to store in the original packing, protected from moisture, dust, heat and sunlight.

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