Na mgbakwunye na imebi mma nke gburugburu ebe obibi, eriri voltaji dị elu gafere site na puku kwuru puku volt ga-enwe mmetụta na-emerụ ahụ n'ahụ ndị nọ nso n'ihi oghere electromagnetic a na-emepụta gburugburu ha. Nke a dabere na ike nke oghere electromagnetic.
Mgbe ndị mmadụ na-ekpughere ike eletrik nke 50 ~ 200 kV / m, enwere ike inwe isi ọwụwa, dizziness, ike ọgwụgwụ, ụra na-adịghị mma, enweghị agụụ, ọbara, usoro obi obi na usoro nhụjuanya nke etiti. N'ezie, ebe a na-ezo aka voltaji nke ihe karịrị 100 kV ultra-high voltaji nnyefe edoghi, dị ka ụkpụrụ n'ozuzu bụghị site residential ebe, ya mere, ndị nkịtị nwere ike na-echebe site na nsogbu. N'ime obodo na ebe obibi, ọtụtụ n'ime eriri nkesa ike na voltaji dị n'okpuru 1 puku volts na-edozi n'ogo a kapịrị ọnụ, nke na-enwe mmetụta dị nta na ahụ mmadụ. Ọ bụrụ na eriri nnyefe dị elu dị n'etiti 1 na 100 kV ga-agafe ebe obibi, ekwesịrị ịtọ ya ma ọ dịkarịa ala mita 6.5 n'elu ala.
Na mgbakwunye, nnyefe dịpụrụ adịpụ n'ọtụtụ mpaghara obodo anyị bụ 220 kV.
Yuanshan North Line nke 220 kV bụ ihe dị mkpa na-enye ọkụ na mpaghara ọdịda anyanwụ Chengdu. N'ime oke ihu igwe na-aga n'ihu na nso nso a, ahịrị ahụ pụtara ntụpọ mberede kpo oku na-adịghị mma, mana n'ihi na ahịrị ahụ dị oke arọ nke ukwuu na enweghị ike ịkwụsị ya, Chengdu Power Supply kpebiri ozugbo iji usoro ọrụ ndụ nke equipotential nwere nnukwu ihe egwu nchekwa yana kachasị elu. oru siri ike na-ebi ndụ na-arụ ọrụ oru ngo ikpochapụ ọnwụ.
N'elekere 7:30 nke ụtụtụ, mkpochapụ nke equipotential eletrik malitere. N'okpuru anyanwụ na-ekpo ọkụ, ndị ọrụ 8 na-arụkọ ọrụ ọnụ na n'usoro. Ha na-etinye ngọngọ, jikọọ na insulated ubube, na-etinye na ọta-arụ ọrụ uwe, rịgoro n'elu ubube, jide 220 kV elu voltaji akara n'ime equipotential, na polished waya mwekota ... awa anọ ka e mesịrị, okpomọkụ nke cable mwekota nke. akụrụngwa dị n'akụkụ nnukwu ụlọ elu 10 laghachiri na nkịtị, a rụchara ọrụ mkpochapụ ngwa ngwa na-enweghị emetụta ike ọkụ. Yuanshan North Line nke 220 kV na-aga n'ihu na-ebufe ibu ahụ na "steeti zuru oke", na-emewanyewanye ikike nkwa ike oge okpomọkụ nke Chengdu ike.