Key points in this article
Why linkage matters
A protection grade is a promise about dust and water resistance. That promise breaks if the adjacent step, like cable entry, is done poorly. Linking stages means checking the seam, not just the rated box sitting on its own in the wall.
Linking with neighbors
Review where the charger meets the wall, the conduit, and the connector. A weak point there undermines the grade. The front line shows most trouble comes from treating each step as separate rather than as one continuous chain.
Details to watch
Keep the area ventilated, dry, and free of water. Follow the manual and avoid modifying parts. Save usage records so any ingress can be traced. Stop and report on any anomaly, especially after heavy weather or a storm. In practice, keeping grade links to adjacent steps and do not let links weaken rating front of mind turns a one-off fix into a lasting routine. The difference between a quick patch and a durable result usually comes down to grade links to adjacent steps and do not let links weaken rating.