Waya ọla kọpa dị larịị enameled dị iche na waya ọla kọpa gburugburu okirikiri enameled ọdịnala.A na-agbanye ya n'ụdị dị larịị na mbido mbụ, wee kpuchie ya na agba mkpuchi, si otú a na-ahụ na mkpuchi dị mma na nguzogide corrosion nke elu waya.Ọzọkwa, atụnyere ọla kọpa gburugburu waya, enameled ọla kọpa ewepụghị waya nwekwara isi ọganihu na ugbu a ibu ikike, nnyefe ọsọ, okpomọkụ dissipation arụmọrụ na nwere ohere olu.
Standard: NEMA, IEC60317,JISC3003,JISC3216 ma ọ bụ ahaziri