The purpose of rod is to provide path for stray current to travel back to the earth, where it can be dissipated.
This is and if your garage is attached to your house, then its electrical system is also connected to the earth through the grounding rod..
The metal creates connection between the earth and your electrical system, which helps to protect against surges and lightning strikes.
By the number of circuits and the amperage rating of the breaker, The size will be determined.
Simply touch one lead of each device to the metal object you're testing and the other lead to either known ground or your own body ..
At this point, you will need to connect one end of the conductor to either water pipe or driven rods pipes at least 10 feet away from any building foundation.
rod is necessary such as when it has metal pipes or other in contact with the earth.
The purpose of rod is to provide path for current to flow into the in case of electrical fault..
The purpose of the rod is to provide path for electricity to flow if there is power surge or other electrical issue.
The main purpose of rod is to provide path to the earth for in case of lightning strike or other event.
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