This document provides information on cable protection systems and rigid duct power trefoil accessories, including trefoil clips and PVC ducts. Trefoil clips are suitable for use with Ridgiduct and bends to support duct arrangement during installation and burial. PVC ducts are available in various diameters, wall thicknesses, lengths, and colors, with standard or sealed options. Both trefoil clips and PVC ducts comply with relevant ENATS and BS EN specifications for high voltage cable protection applications.