I wonder if some of these cases might be caused by the "phantom power" supply required for electret mics.
I was wondering when someone was going to bring that nonesense up. Answer is that's ridiculous.
Obviously the mic was hot with respect to ground or the pool was hot with respect to the grounded mic. Which and why we will probably never know.
This subject has been beaten to death both over in the Mike Holt forum and in the pro audio forums. Unfortunately this is only one of may such electrocutions caused this way.
Before anybody condems the sound system exclusively this is one instance where there could also be another cause.
These baptismals have heaters, lights and a pump. In my book that would make them a pool or spa yet I don't think they come under the applicable articles of the NEC though that might be a moot point. Keep in mind that houses of worship traditionally rely on congregants to provide the electrical and audio work.
In my opinion this is a recipe for disaster.
-Hal
