Network cabinets shall be manufactured from high-quality cold-rolled steel sheets that comply with relevant national standards and industry specifications. The cabinet structure must be robust and reliable, with sheet thickness, load-bearing capacity, and manufacturing precision meeting the requirements for equipment installation and long-term use. Key load-bearing components-such as uprights, crossbeams, the base, and the top cover-shall feature sound structural reinforcement; welded or connected joints must be secure and free from defects such as cold welds, missed welds, deformation, or cracking that could compromise overall structural integrity. External dimensions, mounting hole locations, rack height, and internal space must comply with 19-inch standard equipment installation requirements, accommodating devices such as switches, patch panels, servers, fiber optic distribution equipment, and PDUs. The cabinet must remain structurally stable under full-load conditions, showing no significant wobbling, tilting, or localized deformation; furthermore, adequate space must be reserved for equipment installation, cable routing, and maintenance to ensure smooth future expansion and servicing.
The quality of the cabinet's surface finish must meet the demands of long-term operational environments. Following processes such as cutting, stamping, and bending, the surface must be flat and smooth, free from visible scratches, dents, burrs, rust, or other defects that could impair appearance or operational safety. Reliable anti-corrosion treatments-typically involving degreasing, derusting, phosphating (or similar pre-treatment), and electrostatic powder coating-must be applied; the coating must be uniform, durable, and well-adhered, showing no blistering, peeling, sagging, or exposed base metal. Components such as doors, side panels, top panels, and bottom panels must fit tightly yet operate smoothly during opening and removal; door locks, hinges, mounting rails, and fasteners must possess sufficient mechanical strength. The cabinet design must incorporate effective ventilation and heat dissipation structures, with vents, cooling fans, and mounting provisions tailored to the equipment's heat output, while also addressing requirements for dust and foreign object exclusion. Comprehensive internal cable management facilities must be provided to support both horizontal and vertical routing, allowing power cables, network cables, and fiber optics to be organized separately to prevent tangling or interference with heat dissipation and routine maintenance. Upon completion of installation, the cabinet must demonstrate high reliability and safety; all components must be securely connected, with no signs of looseness in screws, nuts, mounting rails, or other fasteners. The cabinet must feature a comprehensive grounding system, ensuring reliable electrical continuity between the cabinet body, mounting rails, and relevant metal parts, and must include clearly designated protective grounding points to meet safety grounding requirements for network equipment operation. Adjustable feet or casters should be installed at the base, and appropriate anchoring devices provided based on site conditions to ensure the cabinet remains level and stable after installation. All standard accessories-such as mounting screws, nuts, cable management panels, grounding cables, shelves, and other project-specific components-must be included and of a quality commensurate with the overall cabinet specifications. Upon delivery, the product must be accompanied by a certificate of conformity, material or inspection documentation, and installation/operation instructions; the unit must undergo inspections covering appearance, dimensions, structure, load-bearing capacity, grounding, and functionality, and may only be put into service after confirming compliance with design and procurement requirements.
