Any product can claim to be "safe" or "waterproof," but when you're purchasing for a specific application, you need hard data, not vague promises. That's where ingress protection codes, or IP codes, come into play. Here's what they do, what they mean, and how to use them when purchasing.
The IP Code, International Protection Marking, IEC standard 60529, sometimes interpreted as Ingress Protection Marking, classifies and rates the degree of protection provided against intrusion, dust, accidental contact, and water by mechanical casings and electrical enclosures.
UL 1426 is a common requirement for marine wire and cable applications. It was established as a standard to ensure proper wire and cable is used to withstand high heat, moisture and corrosion in marine environments. The standard is set for single-conductor wire and multi-conductor cable.