SPEC 84009

3-Layer 15kV ACSR Tree Wire/Spacer Cable

An Alternative and Robust Design to Bare ACSR Conductors to Harden the Electrical Grids.
3-Layer 15kV ACSR Tree Wire Concentrically Stranded ACSR Track-Resistant Crosslinked Polyethylene (HDTRXLPE).

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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 (HDTRXLPE)

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 B232 Concentric-Lay-Stranded, Aluminum Conductors, Coated Steel Reinforced (ACSR)
  • 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
    46/10.2501575750.5551251767
    26/10.3161575750.6462022708
    1/06/10.3981575750.7282784161
    2/06/10.4471575750.7773305045
    3/06/10.5021575750.8323936289
    4/06/10.5631575750.8934717933
    266.818/10.6091575750.9394746536
    266.826/70.6421575750.97255310735
    336.418/10.6841575751.0145708246
    336.426/70.7201575751.05066913395
    336.430/70.7411575751.07193516435
    397.518/10.7431575751.0736539443
    397.524/70.7721575751.10270713870
    397.526/70.7831575751.11377015485
    47724/70.8461575751.17682416340
    47726/70.8581575751.18889918525
    47730/70.8771575751.213103722610
    556.518/10.8792075751.21987413015
    556.524/70.9142075751.25494918810
    556.526/70.9272075751.267127421470
    63618/10.9402075751.280120014915
    63626/70.9902075751.330137323940
    All dimensions are nominal and subject to normal manufacturing tolerances

    Revision: 3.0.00C