April 17, 2013
That camera is not able to use a ground loop isolator. Ground loop isolators are for analog cameras to clean up interference over long distances. On an IP camera all it will do is stop communication. For IP cameras cable run can be no more than 300 feet or 100 meters. If you want to go past that distance I would use a loco M5 http://www.securitycameraking......-prd1.html
April 17, 2013
Act of God is an act of God. However God does believe in knowledge. That being said this particular camera has an extra screw hole on back labeled with a ground image/icon. That is what you would use to ground the camera with. All cameras should be grounded and surge protected if lightening strikes are an issue. NVR/DVR has the same grounding screw hole on back as well.
My experience with metal buildings, which I have alot of, would be to mount the camera to a piece of wood, preferably a 2X4 or 2X6, then mount the piece of wood to the building. This is especially helpful if the dvr is installed and grounded in another building. All metal buildings have some static electricity running through them, but the amount of static electricity in each building is not always the same or equal. Isolating the camera, especially when the camera has an aluminum housing, is the best way to eliminate any interference.
With this camera since the housing is aluminum and you are going to be running metal screws through it to mount, I agree with Night Hawk that you should use a piece of wood to isolate the camera from the building. I have also seen where having a piece on both sides of the structure helps as well. This is so the screws are limiting their contact with the building.