Ihe PA66: 1, nwere ezigbo mkpuchi na akụrụngwa dielectric, nchekwa na ntụkwasị obi.2, nwere ezigbo nguzogide okpomọkụ, iguzogide ịka nká, ire ọkụ.
Usoro tinning: nkwụsi ike kemịkalụ dị elu, nrụpụta eletrik dị mma.
Akara gasket: N'ihe banyere ịghasa tightening, nwere ike ime ka akara n'etiti ngwaahịa na efere ka mma.
Nhazi ọta: Ọta nwere ike igbochi uzuzu na mmanụ nke ọma ma zere ujo eletrik.
A na-eji ya na kọbọd nchekwa, igwe dị elu ugbu a, batrị na ihe ngosi ndị ọzọ.