Why Atropos

How Does Atropos Maximize Value and Resiliency for Your Grid

Build Grid Resiliency with Atropos Crossarms

Atropos Stands for Unyielding Quality, Service, and Value

Durable Material

Compare to traditional wood and metal crossarms, Atropos' composite crossarms have far superior material properties:

  • Fiberglass and resin composite is a tried-and-true material with many use cases in higher-tech industries.
  • Atropos composite crossarms are natrually decay resistant.
  • Lightweight and durable, has the performance of metal crossarms at the weight of wood crossarms, combining the best of both worlds.

Foam Filled

All crossarms are filled with rigid polyurethane foam specifically designed for UL 94 HF-1. The foam filling provides liquid deflection, vibration dampening, and production against wild-life. Extremely light weight, the foam offers all the benefits without adding cost to shipping, handling, and installation.

UV Protection

Our two-part UV protection system is designed to protect your parts from ber bloom and general UV damage for decades. Compared to painted or coated solutions, Atropos's UV protection system guarnatees complete UV coverage and presents superior consistency, longevity, and durability.

Fire Resistant

Atropos composite crossarms with fire-resistant add-on achieve the highest rating of V-0 according to the UL94 flammability testing standard. We have developed a two-part system of synergistic flammability additives which provide the highest level of flammability mitigation. The fire-resistant option can be applied to any of the crossarm series in any configuration with an upcharge.

Testing and Quality Program

Technical Specifications are Backed by 3rd-party Lab Results Following Industry Standard Procedures

D149 Dielectric Strength

Atropos composite crossarms are tested for electrical conductivity in accordance with the ASTM D649 testing standard by a third-party testing agency. The test results indicate the maximum electric eld the material can withstand before breaking down or becoming conductive. A material with a rating of 300 V/mil or above is typically considered to have a “high” dielectric strength.

Download Technical Information
Download Technical Information

D3916 Tensile Properties, Rods

Atropos composite crossarms are tested for physical loading properties using both sample and full-scale testing. In the sample scale, the material has been tested for tensile and compressive qualities in accordance with the ASTM D695 (compression) and ASTM 3039 (tension) testing standards by a third-party testing agency. All testing results are within typical, expected ranges which is con rmed by full-scale load testing.

D3801 Flammability

Atropos composite crossarms achieve the highest rating of V-0 according to the UL94 flammability testing standard. The samples are tested for flammability in accordance with the UL94 (ASTM D3801 equivalent) testing standard by a third- party testing agency. During the test, the ame self-extinguished, burning material did not drip from the sample, no afterglow was observed, and the re did not spread beyond the original burn site. Atropos composite crossarms are tested for smoke density in accordance with the ASTM E662 testing standard by a third-party agency.

* The Flammability and Optical Smoke Density tests are performed on products with re-resistant option added on.

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Download Technical Information

G154 UV Resistance, Weathering

Atropos composite products are made with long term performance in mind. One of the key, primary sources of part wear and damage during typical use is UV degradation. Our two-part UV protection system is designed to protect your parts from ber bloom and general UV damage for decades. Furthermore, our parts have been thoroughly tested above and beyond all relevant existing testing standards.

Atropos composite parts are expected to last over 60 years of typical service. The parts will experience some fade in color, and slight change to surface texture, but will experience no ber blooming and the mechanical performance core of the material will remain protected.

Download the Technical Information

Atropos has put together a Technical Information brochure that includes product features, testing methods and results, and product technical specifications. If you would like to download the more detailed Atropos Crossarm Deflection Document, or need further assistance, please contact us.

Download Technical Information
Download Technical Information

Take the Steps to Protect Your Investment

Contact Atropos Composites for Unyielding Quality, Service, and Value.

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