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Effect of Ground Electrodes on the Susceptibility to Damage of Customer Premises Equipment (CPE) under Impulse Conditions

Author

Listed:
  • Usman Muhammad

    (Faculty of Engineering, Multimedia University, Jalan Multimedia, Cyberjaya 63100, Malaysia)

  • Normiza Mohamad Nor

    (Faculty of Engineering, Multimedia University, Jalan Multimedia, Cyberjaya 63100, Malaysia)

  • Annuar Mohd Ramli

    (Fixed Infra Media Lab, Research & Innovation Development Division, TMRD Sdn. Bhd, TM Innovation Centre, Cyberjaya 63000, Malaysia)

  • Nurul Nadia Ahmad

    (Faculty of Engineering, Multimedia University, Jalan Multimedia, Cyberjaya 63100, Malaysia)

Abstract

One of the requirements for the safe operation of customer premises equipment (CPE) is an adequate grounding system as a means to divert high fault currents to the ground. In this work we report on the results of an experimental study of the impulse characteristics at a charging voltage of 30 kV on the surge protective device connected to 16 earth electrodes and installed at two sites, giving various ground resistance at low voltages, R DC values. All of these grounding electrodes were installed and tested under the same charging voltage to determine the effectiveness of ground electrodes toward the damage of a modem at the premises. We observed that modems did not experience damage when the ground electrode of the distribution pole (DP) had an RDC below 30 Ω in general and below 46 Ω when ground electrodes installed in low resistivity soil were used. The impulse polarity did not affect the damage susceptibility of the CPE.

Suggested Citation

  • Usman Muhammad & Normiza Mohamad Nor & Annuar Mohd Ramli & Nurul Nadia Ahmad, 2022. "Effect of Ground Electrodes on the Susceptibility to Damage of Customer Premises Equipment (CPE) under Impulse Conditions," Energies, MDPI, vol. 15(3), pages 1-14, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1247-:d:744713
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    References listed on IDEAS

    as
    1. Abdul Wali Abdul Ali & Nurul Nadia Ahmad & Normiza Mohamad Nor & Muhd Shahirad Reffin & Syarifah Amanina Syed Abdullah, 2019. "Investigations on the Performance of a New Grounding Device with Spike Rods under High Magnitude Current Conditions," Energies, MDPI, vol. 12(6), pages 1-18, March.
    2. Abdul Wali Abdul Ali & Nurul Nadia Ahmad & Normiza Mohamad Nor, 2020. "Effect of Impulse Polarity on a New Grounding Device with Spike Rods (GDSR)," Energies, MDPI, vol. 13(18), pages 1-19, September.
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