Ụdị ala na ihe ndị bụ isi chọrọ nke usoro nkesa ọkụ eletrik dị ala Iji kwadoo ngwaọrụ nchekwa ọkụ ọkụ dị ka ngwaọrụ nchekwa ịwa elu  n'ime sistemụ eletriki dị ala iji wepụta àmụmà, mgbada na sistemụ nkesa ọkụ eletrik ga-enwerịrị ihe ndị a: 1. Enwere ike kewaa ụdị ala nke usoro dị ala na ụdị atọ: TN, TT, na IT. N'ime ha, usoro TN nwere ike kewaa ụzọ atọ: TN-C, TN-S na TN-C-S. 2. Ụdị ala nke usoro nkesa ọkụ eletrik dị ala kwesịrị ikpebi dịka ihe ndị a chọrọ maka nchekwa nchekwa eletriki nke usoro ahụ. 3. Mgbe ihe nchebe na-arụ ọrụ na-arụ ọrụ na-ekerịta otu onye na-eduzi ala, a ga-ebu ụzọ mezuo ihe ndị dị mkpa maka onye na-ahụ maka ihe nchebe. 4. A gaghị eji akụkụ ndị na-eduzi ekpughere nke nrụnye eletriki mee ihe dị ka kọntaktị mgbanwe usoro maka ndị na-eduzi ụwa nchebe (PE). 5. Onye na-ahụ maka ụwa nchebe (PE) ga-emezu ihe ndị a: 1.Onye na-eduzi ụwa na-echebe (PE) ga-enwe nchebe kwesịrị ekwesị megide mmebi n'ibu, kemịkalụ ma ọ bụ electrochemical, electrodynamic na thermal mmetụta, wdg. 2. Agaghị etinye ngwa eletriki nchekwa na ngwaọrụ ngbanwe na sekit ihe nchebe ụwa (PE), mana a na-ahapụ isi njikọ nke enwere ike iwepụ naanị na ngwaọrụ. 3.Mgbe ị na-eji ngwá ọrụ nlekota eletriki maka nchọpụta ala, ihe ndị pụrụ iche dị ka sensọ na-arụ ọrụ, coils, ndị na-agbanwe ugbu a, wdg ekwesịghị ijikọta n'usoro na onye na-ahụ maka ihe nchebe. 4. Mgbe a na-ejikọta onye na-eduzi ọla kọpa na onye na-eduzi aluminom, a ga-eji ngwaọrụ njikọ pụrụ iche maka ọla kọpa na aluminom. 6. The cross-section mpaghara nke na-echebe grounding conductor (PE) kwesịrị izute ọnọdụ maka akpaka ike ebipụ mgbe a obere sekit, na ike idi n'ibu nchegbu na thermal mmetụta mere site na-atụ anya mmejọ ugbu a n'ime ịkpụ- oge nkwụsị nke ngwa nchebe. 7. Mpaghara opekempe nke kacha nta nke onye na-ahụ maka ụwa na-echebe iche (PE) ga-agbaso usoro nke edemede 7.4.5 nke ọkọlọtọ a. 8. Onye na-eduzi ụwa nchebe (PE) nwere ike ịgụnye otu ma ọ bụ karịa n'ime ndị nduzi ndị a: 1.Conductors na multi-core cables 2.Insulated ma ọ bụ iferi conductors na-akọrọ ndụ ndu 3.Bare ma ọ bụ mkpuchi mkpuchi maka nrụnye edozi 4.Metal USB Jaketị na concentric conductor ike cables na-ezute ike na thermally kwụsiri ike eletriki continuity 9. Agaghị eji akụkụ ọla ndị a dị ka ihe nchebe ụwa (PE): 1.Metal mmiri ọkpọkọ 2.Metal ọkpọkọ nwere gas, mmiri mmiri, ntụ ntụ, wdg. 3.Mgbanwe ma ọ bụ bendable metal conduit 4.Mgbanwe metal akụkụ 5. Nkwado waya, eriri USB, eriri nchebe metal

---

Oge nzipu: Apr-28-2022