Transcription of grounding rods marking & compliance …
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grounding rods marking & compliance …
88 IAEI NEWS 2008 rods marking & compliance requirementsby Jim LundIn today s electrical environment, a wide array of in-stalled ground rod electrodes does not meet the re-quirements of the National Electrical Code. Ground rods less than in diameter, rods that were cut in half either because of driving difficulty or to reduce expenses, or rods with less than the required coating thickness ( , copper, zinc) are all examples of ground rods that are presently being installed in violation of the NEC and/or local electrical codes. Ground rods that are cut in halfNEC (A)(5) states: rods and pipe electrodes shall not be less than m (8 ft.) in length. Once a rod is in the ground how does the electrical inspector know that the electrode is 8 feet in length?
www.iaei.org November. December 2008 IAEI NEWS 89 grounding rods marking & compliance requirements these non-compliant diameter rods that the market was forced to offer either a full 5/8 inch (0.625) diameter rod
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