Bubby4j
Active Member
I had a very exciting evening, when I was adjusting one of my Intellabeams suddenly there was lots of arcing between the body of the Intellabeam and a truss (luckily I was standing on rubber!). I know that part of the problem is that the power the Intellabeam was connected to was not grounded (not making that mistake again!).
I looked inside and didn't see any wires contacting the body. (Was just a quick inspection, will be looking at it thoroughly later). I don't think that the breaker tripped. (Unless someone turned it back on before I checked.)
As I see it, there's 3 possiblities:
I check the truss against a ground with a multimeter shortly after the event occurred, and the potential was only 1 volt. Unless the breaker for the wire that could have potentially been touching the truss tripped, this couldn't be it.
Any ideas?
Pictures:
![IMG_20140416_165015.jpg IMG_20140416_165015.jpg](data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width='640' height='480' viewBox%3D'0 0 640 480'%2F%3E)
![IMG_20140416_165023.jpg IMG_20140416_165023.jpg](data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width='640' height='480' viewBox%3D'0 0 640 480'%2F%3E)
![IMG_20140416_164959_1.jpg IMG_20140416_164959_1.jpg](data:image/svg+xml;charset=utf-8,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width='640' height='480' viewBox%3D'0 0 640 480'%2F%3E)
I looked inside and didn't see any wires contacting the body. (Was just a quick inspection, will be looking at it thoroughly later). I don't think that the breaker tripped. (Unless someone turned it back on before I checked.)
As I see it, there's 3 possiblities:
- The truss was energized
- The Intellabeam body was energized by a wire directly contacting it
- Some other weird electrical thing happened inside the Intellabeam leaking to the body
I check the truss against a ground with a multimeter shortly after the event occurred, and the potential was only 1 volt. Unless the breaker for the wire that could have potentially been touching the truss tripped, this couldn't be it.
Any ideas?
Pictures:
![IMG_20140416_165015.jpg IMG_20140416_165015.jpg](https://www.controlbooth.com/data/attachments/9/9256-72a8d2db1522fe21eed27d0fea734b02.jpg)
![IMG_20140416_165023.jpg IMG_20140416_165023.jpg](https://www.controlbooth.com/data/attachments/9/9257-c1863494f541e9d91d009271242f91d0.jpg)
![IMG_20140416_164959_1.jpg IMG_20140416_164959_1.jpg](https://www.controlbooth.com/data/attachments/9/9258-f6c0b791e001fb5189b53bd6f581bbed.jpg)