I first posted this under Acoustics
I first posted this under Acoustics
(OP)
I first posted this under Acoustics/Vibration Engineering, but this forum might be more appropriate.
I need to know what kind of mechanical loading (I would assume shock load) is produced when a 22kV circuit is shorted. Experience from real life says that a wall some distance away (approx 0.5 m) is destroyed (part of the wall blown away).
Can anyone point me to where I can find information??
I am a mechanical engineer, so any explanations of what happens from an electrical point needs to be fed by teaspoons, I'm afraid. If I can get an expression of the shock load (magnitude, form, duration) I will apply that to the wall to determine plate thiskness and support design.
Thanks a lot!
I need to know what kind of mechanical loading (I would assume shock load) is produced when a 22kV circuit is shorted. Experience from real life says that a wall some distance away (approx 0.5 m) is destroyed (part of the wall blown away).
Can anyone point me to where I can find information??
I am a mechanical engineer, so any explanations of what happens from an electrical point needs to be fed by teaspoons, I'm afraid. If I can get an expression of the shock load (magnitude, form, duration) I will apply that to the wall to determine plate thiskness and support design.
Thanks a lot!






RE: I first posted this under Acoustics
I take you have a certain amount of power in your 22 kV feed ?
(I would not expect mA would blow down a wall unless maybe of paper
The spark from a major short circuit can, however, produce quite a large shock wave. (Think about lightning and thunder)
Something to do with expanding, super heated air/plasma.
I would guess the amount of power available could give a better estimate of the damage to expect.
RE: I first posted this under Acoustics
A classical paper on the matter is Pressures Developed by Arcs, Ralph H. Lee, Transactions on Industry Applications, vol. 1A-23, No 4, July/August 1987 from IEEE.org
RE: I first posted this under Acoustics
Thanks
RE: I first posted this under Acoustics
RE: I first posted this under Acoustics
RE: I first posted this under Acoustics
http://www.squared.com/us/products/circuitb.nsf/07a0210...$FILE/0613BR0302.pdf
for: various aspects pertaining to arcing, safety, standards, technology, etc.
RE: I first posted this under Acoustics
Thank you for the correction, jbartos. I also failed to mention that the subject paper is available as a free online pdf from one of the IEEE societies.
http://www.ieee-pcic.org/archive/arcs.pdf
RE: I first posted this under Acoustics
RE: I first posted this under Acoustics
http://search.netscape.com/ns/boomframe.jsp?query=%22Pr...
for the Busbar posting recommended paper
(under 1987 click on "Pressures developed by arcs")