A na-eji waya enamel eme ihe na moto na akụrụngwa ngbanwe ugbu a. E nwere ọtụtụ ihe na-ekpe ikpe àgwà enamelled waya. Isi ihe bụ ịhụ continuity nke enamelled waya agba film, ya bụ, ịchọpụta ọnụ ọgụgụ nke pinholes nke enamelled waya agba film n'okpuru a ụfọdụ ogologo. Ọnụ ọgụgụ nke pinholes na ihe nkiri agba nwere ike igosipụta àgwà nke waya enameled. Obere ọnụ ọgụgụ nke pinholes achọpụtara, nke dị elu nke iguzosi ike n'ezi ihe nke ihe nkiri agba nke enameled waya na mmetụta ka mma. N'ụzọ megidere nke ahụ, àgwà nke enameled waya ga-ebelata nke ukwuu. Ya mere, olee otú anyị na-elele ọnụ ọgụgụ nke pinholes nke enameled waya na omume?
N'ozuzu, anyị ga-eji nlezianya agba ihe nkiri continuity tester iji lelee ọnụ ọgụgụ nke pinholes nke enameled waya. Nnwale a na-ejikarị ụkpụrụ mwepu nrụgide dị elu na-akpọtụrụ waya electromagnetic nwere nnukwu nrụgide concave wheel site na ọkara envelopu. Mgbe ọkpụrụkpụ ihe nkiri agba ezughị ma ọ bụ enwere ntụpọ ọla kọpa na-enweghị isi, ngwa ahụ ga-azaghachi ma dekọọ ọnụ ọgụgụ ntụpọ ahụ. N'ụzọ dị otú a, anyị nwere ike ịhụ ọnụ ọgụgụ nke pinholes na ngalaba nke enameled waya.
Ya mere, mgbe ịzụrụ enamelled waya, anyị kwesịkwara ịṅa ntị na ịlele ọnụ ọgụgụ nke pinholes nke enamelled waya, nke mere na-enyere anyị aka ikpebi àgwà nke enamelled waya, nke dịkwa nnọọ uru maka anyị ojiji.