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Armorwire Cable Barrier Systems

Introduction

The Armorwire Test Level 3 – 3 Cable and Test Level 4 – 4 Cable Barriers have been tested to the guidelines in NCHRP 350 for longitudinal cable barriers. When installed correctly the system will allow an errant vehicle to be stopped, contained or redirected in a safe manner.

Features

  Tested to NCHRP 350 TL3 and TL4
  Exceptionally good vehicle control and behaviour
  Can be used in either edge of road or median application
  Easily installed and zero maintenance
  Alternative foundation pile size options available
  Easily repaired after impact
  Designed and manufactured in New Zealand
  Low cost patented technology

 

Specifications

  All posts are hot dip galvanised (white powdercoating optional)
  Cable – 19mm 3 x 7 strand, pre-stretched by 35%
  Cable heights (to the centre) as per the drawing below
  Typical line post footing piles are 300 diameter x750mm (0.05m³)
  Length of need is met at Post 5. (Where post 1 is the trigger post)
  Posts 2 - 5 are spaced at 2m.  (LoN to the trigger post)
  The post spacing between the LoN’s is 3m (unless otherwise specified)
  Concrete to be 25mpa
  Tensioned to 25kN at 20°C. (Tension may vary depending on air  temperature at time of installation)

 

Standards and Approvals

Armorwire Cable Barriers have been designed and tested to meet the evaluation criteria of NCHRP 350 Test levels 3 and 4.

  • Approved by NZTA for use on New Zealand State Highways.

Technical Drawings

For technical drawings of Armorwire Cable TL3 - 3 and TL4 – 4 Cable Barrier go to the Product Manual.

Crash Test Results

For more information on crash test results go to the Product Manual.

Crash test deflection results - test barrier length 130m

2000kg pickup truck at 100kph at 25° angle

Post spacing

3.0

Deflection

1.54m

8000kg truck at 80kph at 15° angle 3.0 1.10m


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