QuestenaUn entraînement qui indique quoi revoir ensuite
Question 230

What is the purpose of a single point ground panel?

  1. Remove AC power in case of a short-circuit
  2. Prevent common-mode transients in multi-wire systems
  3. Eliminate air gaps between protected and non-protected circuits
  4. Ensure all lightning protectors activate at the same timeBonne réponse

Explication

The panel bonds the protectors for every entering cable to one common ground reference, so a surge raises them together and they conduct as one instead of at different instants on separate grounds. It is not a circuit-protection device and does not remove AC power or close air gaps.

Continuer avec ce test

Commencer l’entraînement
Question 230: What is the purpose of a single point ground panel? · FCC Amateur Extra Class (Element 4) · Questena