Ọ bụ ọnụ ụzọ ọkụ nke na-emezu ihe achọrọ nke nkwụsi ike nke ọkụ ọkụ, iguzosi ike n’ezi ihe na mkpuchi okpomọkụ n’ime oge ụfọdụ. Ụdị ọnụ ụzọ ọkụ UL nwere otu akwukwo na akwukwo abuo. Ihe mpempe akwụkwọ ụzọ bụ galvanized ígwè efere, igwe anaghị agba nchara na ihe nkiri mkpuchi ígwè efere. Oge nkwụsị ọkụ nwere ike iru nkeji 120. Nnọọ ịkpọtụrụ anyị.

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