So i am wrong. I still have not seen them in electric rms other than portables.
I have been duley "spanked".
In the true election year spirit.. I will maintain that I have been misunderstood and misquoted!
It was a botched joke.. etc...etc..

The only real electrical settings where I have seen "total flood" applications are in some Transformers and turbines.Non habitable enclosures.

mbhydro: The FM-200 is the replacement for the Halon,(Made in MO.) since you cannot alter or install halon any longer. The good news is the FM breaks down in only 12 mil. yrs instead of the halons 15 mil.

Additionaly, watermist is becomeing a very popular form of suppression. It cools and smothers the fire at once. The water is atomized so very little is needed. Very cool system.This also is used in some gas turbines.