MI.NET MULTI-NETWORK COLLECTOR
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Installation and Operation Manual
APPENDIX III: LIGHTNING PROTECTION RECOMMENDATIONS
To provide adequate levels of surge protection during an electrical storm, proper grounding techniques must be employed.
These precautions involve surge protection on cables and proper system grounding. See the following sections for additional
instructions.
SURGE PROTECTION
Surge protectors are included in the collector and antenna / amplifier assemblies. In high lightning areas an additional surge
protector should be added to the AC service box that supplies power to the collector. This installation should be conducted by
certified, professional personnel.
GROUNDING
Proper lightning protection generally involves ensuring the energy of nearby lightning strikes that couple onto AC, signal, or
antenna cables can be safely diverted to the ground system. It is also very important that all grounds be tied to the same point,
ideally near the AC service box. If these grounds are not tied together, dangerous voltages between different grounds may
develop during a nearby lightning event. These voltages can cause surges that can damage electronic equipment. The
Grounding system shown below in figure A3-1 shows a grounding system that follows generally accepted best practices. Note
that all grounds are tied together near the AC service junction box.
Figure A3-1: Grounding
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