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Frage 423

Where should lightning arrestors be located?

  1. Where the feed lines enter the buildingRichtige Antwort
  2. On the antenna, opposite the feed point
  3. In series with each ground lead
  4. At the closest power pole ground electrode

Erklärung

The point of an arrestor is to divert surge energy to the ground system before it can travel inside, so it is installed where the feed lines enter the building and bonded to the same grounding electrode system as the electrical service. An arrestor placed anywhere further along the path leaves the run into the building unprotected.

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Frage 423: Where should lightning arrestors be located? · FCC General Class (Element 3) · Questena