On any 600 volt, three phase three-wire system not used for lighting, the point of grounding connection may be either a separately derived neutral or:
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windy city oil field, karamay, xinjiang, China
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Laying plastic pipes drainage to drain the water around the house of drainage system
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Apartment Fusebox Installation by Caucasian Electrician in His 40s. Residential Home Electric System Theme.
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Joyful young man construction worker holding mobile phone and smiling while standing by the table with laptop
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