IP54, PROTECTION CLASS

Protection against contact and infiltration of water and dirt

In many ennvironments electronical devices must stand rough conditions and work for their indetnded period of time nevertheless they are set out to dirt, dust and humidity. IP protection classes define, how and where they can be used without getting a safety risk.

REF: http://www.reinmedical.com/en/knowledge-technology/ip-protection-classes.html

http://www.twword.com/wiki/防護等級IP54