The Sentryline – M® Wire Rope Barrier is a high-tension cable barrier, with an accompanying terminal end, designed and tested for full compliance with EN1317, containment Level N2, H1 and H2. Sentryline – M® Wire Rope Barrier allows an impacting vehicle to be re-directed in a safe and predictable manner under EN1317 impact conditions.
Features
- Tested to EN1317 containment Level N2, H1 and H2 by Holmes Solutions
- Easily installed with minimal maintenance required
- Quick to repair after a collision
- Can be installed in median and road side applications
- Cables can be installed in any order – unlike interwoven or stacked cable systems
- Cables can be removed and re-attached individually
- Features non releasing terminal ends
- Designed in New Zealand – Patent pending (WO 2020/128929)
Advantages
- When impacted by a vehicle, the Terminal End is designed such that the vehicle should remain on its wheels at all times without vaulting or rolling
- The Terminal End allows for a reduced rate of deceleration of the vehicle providing more control of the vehicle during the impact event and reduced danger to the vehicle occupants
- Sentryline-M posts will not trap cables when they have been bent during a vehicle impact
- After vehicle collisions the cables may be removed and re-attached individually (subject to site specific approval) without the need to disassemble other cables
- Cables can be installed in any order removing need for either interwoven or ‘stacked’ cable arrangements
Post Options
(Site specific acceptance from the RCA is required)
- Bolt Down Sentryline – M® post option available – used on concrete ground beam where services or ground conditions do not allow use of standard concrete post footings
- Sentryline – M® Driven Sockets – an alternative to the typical concrete post footing where a steel sleeve is driven inground
Specification
- Cable – 19mm 3 x 7 strand, pre-stretched by 35%
- Cable heights (to the centre) as per drawing FX748
- Typically Line Post footing piles are 300mm diameter x 750mm (0.05m3)
- Length of Need is 5.5m downstream from the Ground Anchor
- Ground Anchor and Transition Line Post 1 are spaced at 2m
- Transition Line Post 1 and Transition Line Post 2 are spaced at 3m
- Tensioned to 25kN at 20°C (Tension may vary depending on air temperature at time of installation, see chart in Product and Installation Manual)
- Max flare, 300mm over 10m of the terminal end (offset from tangent)
- All components are hot dip galvanised (posts can be white powder coated)
- Concrete is 25MPa