If you have a 30 cm (12 in) wide data tray, what does ANSI/TIA 569-B recommend be the maximum pathway fill cross sectional area assuming a MAXIMUM pathway depth of 15 cm (6 in)?

Question

Quizplus · Accepted Answer

According to ANSI/TIA 569-B, the maximum pathway fill ratio should not exceed 40% for pathways more than 2 inches wide. Therefore, in this case, the maximum pathway fill cross-sectional area would be 40% of the tray area, which is (30 cm x 15 cm) x 0.40 = 180 sq cm. However, it is recommended to leave at least a 2cm (0.75 in) clearance around cables in order to maintain proper airflow and avoid overheating. Therefore, the maximum recommended pathway fill cross-sectional area would be 150 sq cm (24 sq in).

If You Have a 30 Cm (12 In) Wide Data