Technical Specifications For Corrosion Resistance Of
The thickness of the passivation film on the steel plate (≥3μm), the electrolytic polishing process of the weld, and the anti-aging index of the sealing ring (ASTM
Corrosion Protection Measures for Construction Distribution Boxes
Home / Corrosion Protection Measures for Construction Distribution Boxes
Regularly perform blue dot testing for passivation film integrity (ISO 3650-2 standard), monitor film impedance values (>10⁶Ω·cm²) using electrochemical impedance spectroscopy (EIS), and detect intergranular corrosion depth (≤20μm) using a microhardness tester. The ISO 12944:2018 standard is intended to assist engineers and corrosion experts in adopting best practice in corrosion protection of structural steel with coatings at new construction of industrial panel enclosures. In accordance with the European Union's ATEX directives, explosion-proof control cabinets used in mining, chemical or oil industries are sealed with are sealed with FERMASIL temperature- resistant silicone foams. Therefore, certain measures should be taken to prevent the distribution box from corrosion. Essential for quarries or heavy industrial zones where dust concentration hits 50mg/m³ or higher.
