PSI Cable Trunking is a surface mounted enclosure system designed to ensure ease of installation and protection to insulated conductors and cables. Manufacture is in accordance with British/European standards BS EN 50085-1 and BS EN 50085-2-1. The system provides a full range of fittings and accessories to accommodate complex installation routing requirements. Lid retention of the trunking covers is available in either screw lock type or quick assembly ‘Jet Lock’ type which requires minimum rotation to fasten securely.