Isingeniso somkhiqizo:

Ground Rod Ngocingo
eyenziwe ngeBrass.
Lesi sigaxa senduku yokwakha ukwenza ukuxhumana okuphezulu kocingo lomhlabathi nenduku yomhlabathi.
Gramp induku ngocingo: 1/2 ″, 5/8 ″, futhi 3/4 ″.

Isicelo: