Nkọwa: Ọ nwere ike hapụ àmụmà ma ọ bụ sistemụ ike abụọ na-arụ ọrụ ike karịrị ike, chebe akụrụngwa eletrik site na oke ọkụ na-adịru nwa oge (nfefe ọkụ ọkụ, oke ọkụ na-arụ ọrụ, ujo oke ọkụ na-agafe agafe), ma nwee ike ebipụ ịnyagharị na-enweghị ihe kpatara ngwaọrụ eletriki nke na-eme ka obere sekit. ala sistemu.
Ọrụ: Mgbe nfefe ahụ na-eme, voltaji dị n'etiti njedebe abụọ nke onye na-ejide ya adịghị agafe uru a kapịrị ọnụ, nke mere na ngwá ọrụ eletrik adịghị emebi site na oke ọkụ;mgbe etinyere overvoltage ahụ, usoro ahụ nwere ike ịlaghachi ngwa ngwa na steeti nkịtị iji hụ na ọkụ eletrik nkịtị nke usoro ahụ dị.
Ọtụtụ ihe ngosi na-etinye aka na njide ike
(1) Njirimara volt-nke abụọ: na-ezo aka na njikọ kwekọrọ n'etiti voltaji na oge.
(2) Ntugharị ike ugboro ugboro: na-ezo aka na ike ugboro mkpụmkpụ mkpirisi okirikiri grounding ugbu a na-erute mgbe ọkụ ọkụ ma ọ bụ overvoltage mwepu akwụsị, ma ike ugboro voltaji ka na-arụ ọrụ na njide.
(3) Ikike mgbake nke ike dielectric: mmekọrịta dị n'etiti ike dielectric nke ngwá ọrụ eletrik na oge, ya bụ, ọsọ nke mgbake na ike dielectric mbụ.
(4) The gosiri voltaji nke njide: nnukwu ike ugboro voltaji na ọdịiche nwere ike idi mgbe ike ugboro freewheeling ugbu a na-agafe efu na nke mbụ, na agaghị eme ka arc na-achị, nke a makwaara dị ka arc voltaji.