I have written about interlocks and their design, use, and function many times. I have also shared accidents which involved the abuse and/or misuse of interlocks. Sadly I have another fatality to report where an interlocked guard was by-passed…
At 2:20 p.m. on June 11, 2018, an employee was mixing powders using a commercial horizontal mixer. The employee was caught by the ribbon of the mixer. The microswitch was being held down by a zip-tie which allowed the ribbon to turn while the lid was open. The employee sustained crushing injuries and an amputation of the left hand and was killed.
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Violation Summary
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|---|---|---|---|---|---|
| Serious | Willful | Repeat | Other | Total | |
| Initial Violations | 2 | 8 | 10 | ||
| Current Violations | 2 | 8 | 10 | ||
| Initial Penalty | $21,825 | $0 | $0 | $3,505 | $25,330 |
| Current Penalty | $21,825 | $0 | $0 | $3,505 | $25,330 |