Copper conductor, PVC insulation – 450/750V

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  • – Copper conductor, PVC insulation – 450/750v
    – Symbol: CV…mm2 – 450/750V, CV…mm2 – 450/750V (h), CV…mm2 – 450/750V (cs), VC…mm2 – 450/750V, Symbol: VCm … mm² – 450/750 V
        
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1General

  • Used as a power transmission line for lighting and civil electrical equipment, rated voltage 450/750V, fixed wiring.

2Applied standard

  • TCVN 5064 – 1994; TCVN 5064 : 1994/SĐ 1 : 1995; TCVN 6610-3 / IEC 60227-3; TCVN 6612 / IEC 60228 or equivalent standard

3Identification of cores

  • By color of insulation: red, yellow, blue, black.
  • Or by customer’s requirement.

4Structure

  • (1)   Conductor: by one of the following types:
  • (1.1) By hard-drawn copper wires (according to TCVN 5064), concentrically stranded.
  • (1.2) By copper wires (class 2), concentrically stranded or compacted circular.
  • (1.3) By solid copper wire (class 1).
  • (1.4) By flexible copper wires (class 5), bunched.
  • (2)   Insulation: PVC.

5Technical characteristics

  • Rated voltage U0/U: 450/750 V.
  • Test voltage: 2,5 kV (5 minutes).
  • Maximum conductor temperature for normal operation is 70°C.
  • Maximum conductor temperature for short-circuit (5s maximum duration) is:
    • 140°C with nominal area larger than 300mm2.
    • 160°C with nominal area up to and include 300mm2.

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