1. Select the width and height of the cable trays according to the table below, ensuring that cable fill ratios do not exceed the limits specified in relevant standards: 40–50% for power cables and 50–70% for control cables. Additionally, a 10–25% margin should be reserved for future expansion.
2. Specifications for various fittings (such as bends) and accessories must align with project layout requirements and be compatible with the cable trays.
3. Specifications for supports and hangers should be selected based on factors such as tray dimensions, number of tiers, and span length, while ensuring load-bearing requirements are met.
