Questenaتدريب يوضح لك ما ينبغي مراجعته لاحقًا
السؤال 386

Which of the following is good practice when installing ground wires on a tower for lightning protection?

  1. Put a drip loop in the ground connection to prevent water damage to the ground system
  2. Make sure all ground wire bends are right angles
  3. Ensure that connections are short and directالإجابة الصحيحة
  4. All these choices are correct

الشرح

A lightning surge is a fast, high-current pulse, and the impedance a conductor presents to it is dominated by inductance rather than resistance. Short, direct runs keep that inductance low; right-angle bends raise it, and a drip loop is a weather practice rather than a grounding one.

تابع هذا الاختبار

بدء التدريب
السؤال 386: Which of the following is good practice when installing… · FCC Technician Class (Element 2) · Questena