and since that's way above the 1.5m depth that's certified by the standard IP-rating system, there's no real need to have ...

Motorola, as one example, has long coated its phone's interiors with a resistant coating, but didn't submit to the IP ratings system until more recently. Also don't rely on your IP rating as ...

IP enclosures comply with Ingress Protection (IP) standards from the International Electrotechnical Commission (IEC). When selecting enclosures, correct size and adequate protection are the priorities ...