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09:06 Sep 10, 2001 |
Dutch to English translations [PRO] Tech/Engineering | |||||
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| Selected response from: Evert DELOOF-SYS Belgium Local time: 21:52 | ||||
Grading comment
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Summary of answers provided | ||||
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4 +2 | ...to the nearest Cadweld plate |
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...to the nearest Cadweld plate Explanation: Good reference: (via www.google.com) The copper grounding plate assemblies [Paige Electric part number 182199L] must meet the minimum requirements of section 250 of the NEC. They are to be made of a copper alloy intended for grounding applications and will have minimum dimensions of 4” x 96” x 0.0625”. A 25-foot continuous length (no splices allowed unless using exothermic welding process) of 6 AWG solid bare copper wire is to be attached to the plate using an approved welding process. This wire is to be connected to and through the top of the ground rod using a Cadweld GT1161G ”One-Shot” welding kit [Paige Electric part number 1820039], terminating at the electronic equipment ground lug. The ground plate is to be installed to a minimum depth of 30”, or below the frost line if it is lower than 30” at a location 15 to 20 feet from the ground rod, electronic equipment and wires and cables. Two 50-pound bags of PowerSet® [Paige Electric part number 1820058] earth contact material must be spread so that it surrounds the copper plate evenly along its length within a 6” wide trench. The use of salts, fertilizers and other chemicals are not to be used to improve soil conductivity because these materials are corrosive and will cause the copper electrodes to erode and become less effective with time. HTH |
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Grading comment
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