Njengengxenye eyinhloko yezinhlelo zokuvikela umbani, ukukhethwa kwenduku yombani efanele kuthinta ngqo ukuphepha kwesakhiwo. Isinqumo kufanele silinganisele imininingwane yobuchwepheshe, izici zemvelo, kanye nokuhambisana nemithetho.
1. Uhlobo Lokukhetha Ngokusebenza
I-Franklin Rods: Ifanele izakhiwo zokuhlala ezinerediyasi yokuvikela engamamitha angu-30. Idinga ukwakhiwa kwensimbi ekhandiwe kanye namagridi asekelwe phansi anikezelwe.
Izinduku ze-ESE (Early Streamer Emission): Yandisa ukumbozwa kufike ku-100m usebenzisa i-electronic triggering, efanelekile ezindaweni ezibalulekile njengezikhungo zedatha. Qinisekisa izitifiketi ze-CE/UL.
Izinduku Ezisebenzisa Imisebe (Ezinqunyelwe): Zivinjelwe ezakhiweni ezintsha zaseShayina nge-GB 50057 ngayinye kusukela ngo-2005 ngenxa yezingozi zokusebenzisa imisebe.
02. Ubunjiniyela Obuqondene Nemvelo
Ukubalwa Kokuphakama: Sebenzisa indlela ye-rolling sphere $ h = \sqrt{2rH – H^2}$ (h: ukuphakama kwenduku, r: i-sphere radius, H: ukuphakama kwesakhiwo)
Ukumelana Nokugqwala: Sebenzisa insimbi engagqwali engu-316L (ukumelana nokufuthwa ngosawoti >720hr) ezindaweni ezisogwini; i-copper-titanium alloy (pH 2-12 tolerance) ezindaweni zamakhemikhali
Ubuningi bombani: Ezindaweni ezimatasa kakhulu (ezingaphezu kwezinsuku ezingu-90 zemvula minyaka yonke), khulisa ama-electrode aphansi ngo-25%.
03. Ukufakwa Okuhambisana Nekhodi
Isigaba Sokuklama: Gcina ukumelana komhlabathi <10Ω (<4Ω yezindawo ezikhethekile), sebenzisa izinhlelo zokufaka umhlaba ze-TN-S/TT
Ukwakhiwa: Faka i-thermite welding kuma-air terminals/down conductors anokunqwabelana okungu->12cm
Ukuhlolwa: Hlola impedance yokushukuma nge-CDM-10 pulse current metres; qinisekisa ukubopha ngezithombe ze-infrared
Icebiso Lokulungisa: Qapha ukumelana komhlabathi ngama-micro-ohmmeters kabili ngonyaka, shintsha izembozo zombhobho we-down njalo eminyakeni emi-5 ukuqinisekisa ukulandelwa kwe-IEC 62305 kuyo yonke impilo yokuvikela.