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السؤال 395

Which of the following is true when installing grounding conductors used for lightning protection?

  1. Use only non-insulated wire
  2. Wires must be carefully routed with precise right-angle bends
  3. Sharp bends must be avoidedالإجابة الصحيحة
  4. Common grounds must be avoided

الشرح

A lightning surge rises extremely fast, and a sharp bend adds inductance which develops a large voltage across it and can make the surge jump the corner to something else. Grounding conductors are therefore routed with gentle sweeping bends, and common bonding is required rather than avoided.

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السؤال 395: Which of the following is true when installing grounding… · FCC Technician Class (Element 2) · Questena