Mgbawa Shenhai-Ihe akaebe
Ngwa eletriki na-egbochi mgbawa ga-enwerịrị ihe mkpuchi igwe gbadoro ụkwụ. Na mgbakwunye, njikọ equipotential dị mkpa iji gbochie mmiri mmiri nwere ike ịpụ n'ihi ọdịda mkpuchi na iji zere ihe ize ndụ nke ọkụ eletrik sitere na mmiri ndị na-akpagharị akpafu na-amụnye ngwakọta gas na-agbawa agbawa..
Maka akụrụngwa dị otú ahụ, Ekwesịrị itinye ntinye ala na njikọta nha anya n'ime usoro abụọ, ebe ngwaọrụ ọ bụla nwere ma n'ime ma n'èzí grounding ọnụ. A ga-edobe ọnụ ọnụ ndị a n'otu ikike ma jikọọ na nke grounding usoro iji hụ na arụmọrụ nke grounding na bonding.
Ekwesịrị ịtọ ntọala mgbada n'ime n'ime oghere waya (igbe junction ma ọ bụ isi ụlọ), na mpụta ala kwesịrị ịdị na mkpuchi nke ngwaọrụ ahụ. Nke a na-eme ka o doo anya na ihe ndị bụ isi nke igwe, dị ka etiti, bụ otu ike dị ka ala.
Ndị nduzi a na-eji maka ịgbado ala na njikọta nhatanha ga-enwerịrị opekempe mpaghara mpaghara, S. Na otu sekit isi sekit, Ọ bụrụ na mpaghara obe S0 abụghị ihe karịrị 16mm², mgbe ahụ S kwesịrị ịbụ opekempe S0. Maka S0 n'etiti 16mm² na 35mm², S kwesịrị ịbụ 16mm². Ọ bụrụ na S0 gafere 35mm², S kwesịrị ịbụ ihe karịrị ọkara nke S0. Ọ bụrụ na S0 dị obere, Opekempe mpaghara obe kwesịrị ịbụ opekata mpe 4mm².
Ngwa mgbado ala na nha nhata ga-ahụrịrị na njikọ dị n'etiti ndị na-eduzi na ọnụ ala., na usoro iji gbochie ịtọpụ ma ọ bụ corrosion.
Maka ngwaọrụ eletriki enwere ike ibugharị site na grid, Enwere ike ịgafe n'ala mpụga, ma n'ime grounding kwesịrị isi na-eji eriri nwere grounding isi. Ọ bụrụ na a na-akwado ya site na ngwungwu batrị nwere mkpanaka enweghị n'ala, grounding adịghị mkpa. Na mgbakwunye, Ngwa eletriki nwere mkpuchi okpukpu abụọ ma ọ bụ gbasiri ike ekwesịghị ịdakwasị.