My welding teacher was also a investigator of industrial accidents surrounding welding and he used to relate to us how accidents came about through stupidity. One he related concerned a high pressure air tank that was being built, two welders were leak testing the tank by charging it with air, locating leaks, dropping the air pressure then repairing the leaks. This process took a lot of time and it was Friday afternoon and they wanted to finish before going home so they decided to short cut the whole thing and get out of there. They were working on top of the tank so they leak tested, found the leak and began to weld and it simply blew up. Apparently the marks their bodies left on the roof of the workshop could clearly be seen after the explosion. Compressed air is dangerous but few of us realise how dangerous.
Chris
Everything I like is either illegal, immoral or fattening