Hello all, it's been awhile since I've been on but I need to ask a question that shouldn't need to be asked. Common sense should prevail but unfortunately it doesn't. I work in an industrial food manufacturing facility that requires high pressure wash down each night at the end of production. All of our machinery panels are rated NEMA 4X but we still have a lot of old lighting panels and similar power panels throughout the facility that are not NEMA 4X. Most of these panels are out of the heavily washed down areas and if employees adhere to the guidelines everything should be fine. Unfortunately not everyone listens. We've recently had an employee wash down an old cutler hammer lighting panel and created an arc flash. Blew a hole the size of a golf ball out the back of the panel box. I've been tasked with coming up with some sort of identification that alerts employees not to use water any where close to these panels. I've been coming up with different ideas but just wondering if anyone has anything that they use in their facilities that will easily catch someone's eye. We of course are planning safety meetings covering what just happened and trying to educate folks on the situation. Thanks in advance for any ideas.