Product Information

Specification

477 MCM 26/7 Str ACSR Concentric Round Covered Conductor Shield Polyethylene 25KV Tree Wire

Application:

For distribution overhead power lines where space for right of-way is limited or in close proximity to trees and other vegetation, installed in similar manner as bare conductors without any conductor voltage rating and require the use of compatible insulators and supported on cross arms or brackets.

Also Known As:

477 MCM MV Tree Wire, MV polyethylene Cable, 477 MCM Covered Conductor Cable, Concentric Round Cable, 477 MCM MV Cable, Shield MV Tree Wire.

Standards:

• ICEA S-121-733
• Tree Wire and Messenger Supported Spacer Cable

Features:

• Outer layer is sun resistant and withstands UV degradation.
• Cross-linked or thermosetting covering system is designed to have a normal operation temperature up to 90 Deg C.
• High Density outer covering resists abrasion when in contact with tree or other vegetation.
• Outer XL-HDPE covering meets the track resistance qualification per ASTM D2303 with min test voltage of 2.5 kV and min time to track of 1000 minutes.
• The outer track-resistant conductor covering prevents direct shorts and instantaneous flashovers due to conductor contact with tree limbs and other objects. This feature results in fewer power outages and reduces the need for frequent tree trimming.
• Cable outer covering is offered in both gray and black colors.  

Construction:

• Conductor: Aluminum alloy 1350-H19 compacted per ASTM B400 or ACSR stranded per ASTM B232 or AAAC stranded per ASTM B399.
• Conductor Shield: Semiconducting cross-linked polyethylene (XLPE).
• Inner Layer: Natural low density cross-linked polyethylene (XL-LDPE).
• Outer Layer: Gray or black sun resistant and track-resistant cross-linked high density polyethylene (XL-HDPE).

Specifications:

• Size: 477 MCM
• No. of Strands: 26/7
• Conductor Diameter (In): 0. 858
• Conductor Shield Thickness (mils): 15
• Inner Layer Thickness (mils): 125
• Outer Layer Thickness (mils): 125
• Approximate Outside Diameter (In): 1440
• Approximate Net Weight lb/kft: 1103
• Rated Strength lbs: 18525

*Data provided on this page is subject to change based on different manufacturers' variances

** Images are for display purposes only refer to Product Technical Details for accurate information on the product.

In the case the material only comes in a predetermined color or doesn’t come with any color