I saw this at a hospital lab last year, a great example of true error proofing vs. just putting up warning signs. “Cautions” and “Warnings” are lazy engineering, in general, with product design. Signs are not good problem-solving in any process environment; they fall far short of true error-proofing. Image #1 was just outside the lab: I’m sure putting beverages or liquids on top of the circuit break enclosures poses a lot of risk. I’m … Continue reading Signs are Not Error Proofing: Electrical Circuit Breaker Edition