Instructions for Use of the Upgraded Earthquake-Resistant Cabinet

Proper installation, anchoring, and internal load management are essential to ensure the cabinet remains functional during earthquakes.Installation and AnchoringSelect the Appropriate Seismic Zone: Determine the seismic risk of your location (Zones 1–4 according to Telcordia GR-63-CORE). Use the cabinet with or without a seismic kit depending on the zone—Zone 3 cabinets may not require additional accessories, while Zone 4 requires a seismic kit for full compliance .Secure to Subsurface: Use the external M10 threaded points or floor anchor kits to firmly attach the cabinet to the floor or mounting surface. This ensures stability during horizontal and vertical seismic forces .Level and Position: Place the cabinet on a flat, stable surface. Ensure it is upright and level to prevent tipping or uneven load distribution during seismic activity.Internal Component ArrangementLoad Distribution: Place heavier equipment or batteries on lower trays to lower the center of gravity. For example, in seismic tests, mounting plates were loaded with evenly distributed trays of approximately 31 kg each to simulate real-world conditions .Secure Components: Use welded frames, PE-coated trays, or internal brackets to hold equipment in place. Batteries or sensitive devices should be firmly fixed to prevent movement .Electrical Connections: Ensure all components are electrically connected via contact discs or grounding bolts as provided. Proper grounding is essential for safety and continued operation during seismic events .Access and MaintenanceRemovable Panels: Cabinets often feature removable roofs, sides, and front/rear doors for easy access to equipment. Ensure panels are properly secured after maintenance .Inspection: Regularly inspect the cabinet for loose bolts, tray alignment, and wear on seismic accessories. Replace or tighten components as needed to maintain earthquake resistance.Safety and ComplianceFollow Standards: Ensure installation and use comply with Telcordia GR-63-CORE, DIN EN IEC 62485-2, or other relevant seismic standards .Avoid Overloading: Do not exceed the recommended weight per tray or mounting plate. Overloading can compromise seismic performance.Environmental Considerations: Keep the cabinet away from areas prone to flooding or excessive vibration unrelated to earthquakes, as these can affect stability and equipment safety. By following these instructions—anchoring securely, distributing internal loads properly, and maintaining compliance with seismic standards—the upgraded earthquake-resistant cabinet will provide reliable protection for critical equipment during seismic events .