Core requirements: explosion-proof, corrosion-resistant, and impact-resistant

Applied equipment:
Indoor vacuum circuit breaker (enhanced): nickel-plated shell resists H₂S corrosion, 2000 mechanical lifespan (frequent operation requirements for mines).
Medium-voltage switchgear: KYN28-12 type, cabinet thickened to 2.5mm, vibration-resistant (compliant with IEC 60068-2-6).
Power transformer: dry insulation (no oil depot required), F-class temperature resistance of 155°C, suitable for the impact load of steel mill arc furnaces.
After the iron ore project replaced our equipment, the downtime was reduced from an average of 8 hours per year to 0.5 hours.