250.4 [A] [5] Electrical raceways,cables,enclosures equipment and other conductive material likely to become energized must be installed in a manner that creates a low -impedance path to facilitate the operation of the circuit overcurrent device or ground detector for high impedance systems Earth not an effective ground path Danger earth does not clear a ground fault. Grounding metal parts to earth does not assist in removing dangerous voltage from ground faults. Bonding electrically conductive materials to each other and to the SUPPLY SOURCE establishes an effective ground fault path.To quickly remove fault current ground path must have low impedence. NOTE comments not in NEC are by Joseph McPartland . I was taught all grounding is to be "targeted: to the main panel. myself.No rods at other buildings. Sorry for any typos too tired to proof read.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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