Guard Cable consist of three or four pre-stressed galvanised steel wire supported by galvanised steel bracket and posts at nominal 3.0m
The steel wire will be fitted to the bracket using U-bolt and the fitted to the post
The steel wire is joined and tension by means of rigging screws. The end of steel wire is attached to the end of the post/anchor ( special design post) embedded to the ground
The method of mounting the post is to place it into the ground without the need for a concrete foundation for the median post which also depends on the site's condition.
The Guard Cabel can be installed as long as the steel wire anchored at the length not exceeding 500 metres and a minimum length of 24 metres.
The post height is based on the height of the strongest part of the average vehicle which is the same as guard rail height.
The height of the post varies from 690mm to 710mm ( normally 705mm) from the ground level.
The upper steel wire is fixed at 600mm (± 10mm) and the lower steel wire 440mm (± 10mm) from the ground level.
The median post piled directly into the ground with a minimum of 950mm depending on the site's condition.
End post act as an anchor is embedded minimum 400mm into concrete foundation of 100mm2
The post spacing normally used is 3.0metre. It is standardised spacing between used for installation purposed.
In some location/sites where the special need or purposed the post can installed closed