I think the worker who rigged the fuse and also managment also should be held responsible.
I am not a electrician and have never claimed to be, but after getting out of the Navy (NUKE MECHANIC on subs) I spent seven years as a maintenance person in a small factory, We had two maintenance people and a supervisor and I had the most electrical experience so I did most of the electrical repairs and wireing. I followed the NEC code to the best of my abilities in all that I did and often was more conservative than required. I more than one occasion I was urged (more like threatened)by the plant manager to take shortcuts to get equipment / production running again. When I felt that what I was asked to do was illegal/unsafe I would advise him of such if he continued to pressure me I would ask him to sign a statement to the effect that he ordered me to do XYZ after being informed that that XYZ was a violation of NEC or a unsafe practice. ODDLY enough I never got a signed statement and was always allowed to do it my way