We had that in class...
To paraphrase the teacher:
"...Super heated steam is a bitch: a leak less than 1mm can be highly
dangerous and invisible. You know you found a leak when some of your
fingers, or your hand, drops on your foot.
The cut is so perfect that you body part will hit the ground before
you register pain.
Bigger leaks, 1cm maybe, can cut people in two when they walk past them.
That's why, when you have a leak on on superheated part of your
boiler system, first shut down, then cool down and open the valves
before looking for the leak..."
(, Sun 21 Dec 2014, 21:26, Share, Reply)