ʻO nā pono o nā insulators aniani:

Ma muli o ka ikaika mechanical kiʻekiʻe o ka ʻili o ka insulator aniani, ʻaʻole hiki i ka ʻili ke maʻa.ʻAʻole loli ka ikaika uila o ke aniani i ka wā o ka hana holoʻokoʻa, a ʻoi aku ka lohi o kāna kaʻina hana kahiko ma mua o ka porcelain.No laila, ka aniani insulators ua nui scrapped ma muli o ka hoʻopōʻino iā ia iho, ka mea i loaʻa i loko o ka makahiki mua o ka hana, akā, i ka hemahema o ka porcelain insulators aia wale nō i ka hana no kekahi mau makahiki Ma hope wale nō i hoʻomaka ai e ʻike.

Hiki i ka hoʻohana ʻana i nā insulators aniani ke hoʻopau i ka hoʻāʻo pale maʻamau o nā insulators i ka wā o ka hana.ʻO kēia no ka mea, ʻo kēlā me kēia ʻano pōʻino i ke aniani hoʻoheheʻe ʻia e hoʻopōʻino i ka insulator, kahi maʻalahi i nā mea hana ke ʻike i ka wā e mākaʻikaʻi ai i ka laina.Ke hoʻopōʻino ʻia ka insulator, ua paʻa nā ʻāpana aniani kokoke i ka pāpale kila a me nā wāwae hao, a ua lawa ka ikaika mechanical o ke koena o ka insulator e pale aku i ka insulator mai ka haki ʻana.ʻO ka helu haʻihaʻi ponoʻī o nā insulators aniani kekahi o nā hōʻailona koʻikoʻi e ana i ka maikaʻi o ka huahana, a ʻo ia hoʻi ke kumu o ka maikaʻi no ka loiloi ʻana i ke kumu kūʻai i kēia manawa.