Medium voltage cables, copper conductor, conductor screen, XLPE insulation, PVC or HDPE sheath – 18/30(36)KV

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Medium voltage cables, copper conductor, conductor screen, XLPE insulation, PVC or HDPE sheath – 18/30(36)KV
Symbol:

CXV…mm2 – 18/30(36)KV (SC), CXV…mm2 – 18/30(36)KV (h/SC)
CXH…mm2 – 18/30(36)KV (SC), CXH…mm2 – 18/30(36)KV (h/SC)
CXV…mm2 – 18/30(36)KV (WB/SC), CXV…mm2 – 18/30(36)KV (h/WB/SC)
CXH…mm2 – 18/30(36)KV (WB/SC), CXH…mm2 – 18/30(36)KV (h/WB/SC)

1General

  • Used in overhead medium voltage power distribution systems, rated voltage 18/30(36)KV.

2Applied standard

  • TCVN 5064 – 1994; TCVN 5935-2 / IEC 60502-2; TCVN 6612 / IEC 60228 or equivalent standard.

3Identification of cores

  • By color of insulation: natural color of XLPE.
  • Outer sheath: Black.
    Or by customer’s requirement.

4Structure

  • (1) Conductor: by hard-drawn copper wires (according to TCVN 5064) or copper wires (class 2), concentrically stranded.
    (2) Water-blocking: Without/with water blocking compound.
    (3) Conductor screen: semi-conductor.
    (4) Insulation: XLPE.
    (5) Outer sheath: PVC or HDPE.

 

5Technical characteristics

  • Rated voltage U0/U(Um): 18/30(36)
  • Maximum conductor temperature for normal operation is 90°C.
    Maximum conductor temperature for short-circuit (5s maximum duration) is 250°C.