Highway Cables

Welcome to Caledonian dedicated web site for Highway cables.

This covers Highway for British Standard, International Municipal Signal Association and National Motorway Communications System Specifications.

About the IMSA:
Since 1896, the International Municipal Signal Association (IMSA) has been concerned with many
aspects of governmental public safety, communications and signaling. The majority of its members are
municipal, county, state/provincial and federal officials and employees located throughout the United
States and Canada.
The development of a series of electrical cable and wire specifications is one of the many services
provided by IMSA. These specifications assure specifying engineers, purchasers and users that they
are receiving quality cable and wire that will perform reliably within the application scope of each
specifications.
The cable constructions offer maximum resistance to moisture and weathering and are primarily
designed for outside installations, including aerial, underground duct and direct earth burial. They are
also excellent options for industrial and other users when selecting control and communications cables
for outside installations