SPEC 84033

3-Layer 35kV ACSR Tree Wire/Spacer Cable

An Alternative and Robust Design to Bare ACSR Conductors to Harden the Electrical Grids.
3-Layer 35kV ACSR Tree Wire Concentrically Stranded ACSR Track-Resistant Crosslinked Polyethylene.

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Construction:

  1. Conductor:Concentrically stranded ACSR
  2. Strand Shield:Semi-conducting cross linked polymer
  3. Inner Layer:Low-Density Crosslinked Polyethylene (LDXLPE)
  4. Outer Layer:High-Density Track-Resistant Crosslinked Polyethylene

Applications and Features:

Used for primary and secondary overhead distribution where limited space is available or desired for rights-of-way. Installed the same as bare conductors, however, covering is effective in preventing direct shorts and instantaneous flashovers should tree limbs or other objects contact conductors in such close proximity.
  • Tree Wire - Used for spans where trees crowd the right-of-way, such as in wooded residential areas, when a minimum of interference with the environment is desired. Covering minimizes power outages due to conductor contact with tree limbs, reducing the need for frequent or severe trimming.
  • Covering Rated 90°C Normal and 130°C Emergency Operation. Unless adequate knowledge of the thermal characteristics of the environment is known, the permissible conductor temperature should be reduced by 10°C or in accordance with available data.
  • Specifications:

  • ASTM B230 Aluminum, 1350-H19 Wire for Electrical Purposes
  • ASTM B231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors
  • ASTM B498 Zinc-Coated (Galvanized) Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)
  • ASTM B500 Metallic Coated Stranded Steel Core for use in overhead Electrical Conductors
  • ICEA S-121-733 Tree Wire and Messenger Supported Spacer Cable
  • Table 1 – Weights and Measurements
    Cond. SizeCond. StrandsDiameter Over ConductorConductor Shield ThicknessInner Layer ThicknessOuter Layer ThicknessApprox. ODApprox. WeightRated Strength
    AWG/Kcmil#inchmilmilmilinchlb/1000ftlb
    1/06/10.398151751251.0284484161
    2/06/10.447151751251.0775095045
    4/06/10.563151751251.1936737933
    266.818/10.609151751251.2396846536
    266.826/70.642151751251.27277010735
    336.418/10.684151751251.3147948246
    336.426/70.720151751251.3590113395
    336.430/70.741151751251.371117016435
    397.518/10.743151751251.3738899443
    397.524/70.772151751251.40294913870
    397.526/70.783151751251.413101315485
    All dimensions are nominal and subject to normal manufacturing tolerances

    Revision: 3.0.00C