Network cabinets should have good technical performance. The structure of the cabinet shall be subjected to the necessary physical design and chemical design according to the electrical and mechanical properties of the equipment and the requirements of the use environment to ensure the structure of the cabinet has good rigidity and strength as well as good electromagnetic isolation, grounding, noise isolation, ventilation and heat dissipation. Performance. In addition, the network cabinet should be resistant to vibration, shock, corrosion, dust, water, radiation, etc., in order to ensure stable and reliable operation of the equipment.