you are the electrician in charge. What instruction would you give to a first-year apprentice who will make up the grounding connection? 15. Why is it necessary to have a good grounding system for the...

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Extracted text: you are the electrician in charge. What instruction would you give to a first-year apprentice who will make up the grounding connection? 15. Why is it necessary to have a good grounding system for the building? 16. What are the three most common methods of determining ground resistance? 17. Explain the difference between a soft metric conversion and a hard metric conversion.