He ōrite te tohatoha ahotea o te papa hiko i roto i ngā taura AC, ā, ko te arotahi o ngā rauemi whakamahana taura kei runga i te pūmau dielectric, kāore e pāngia e te pāmahana. He rerekē, ko te tohatoha ahotea i roto i ngā taura DC kei te paparanga o roto o te whakamahana, ā, ka pāngia e te ātete o te rauemi whakamahana. He tauwehenga pāmahana kino kei ngā rauemi whakamahana, ko te tikanga ka piki ake te pāmahana, ka heke te ātete.
Ina whakamahia he taura, ka piki ake te pāmahana nā ngā mate o te matua, ka huri te ātete o te rauemi whakamarumaru. Nā tēnei ka rerekē te ahotea o te papa hiko i roto i te papa whakamarumaru. Arā, mō te matotoru ōrite o te whakamarumaru, ka heke te ngaohiko pakaru i te pikinga o te pāmahana. Mō ngā raina pūrua DC i roto i ngā teihana hiko tohatoha, he tere ake te tere tawhito o te rauemi whakamarumaru nā te piki haere o te pāmahana taiao ki te whakataurite ki ngā taura tanumia, he mea nui tēnei hei mōhio.
I te wā e hangaia ana ngā paparanga ārai taura, ka uru mai ngā poke. He iti ake te ātete ārai o ēnei poke, ā, kāore i te ōrite te tohatoha i te taha porowhita o te paparanga ārai. Ka hua ake tēnei i te rerekētanga o te ātete rōrahi i ngā wāhi rerekē. I raro i te ngaohiko DC, ka rerekē anō hoki te papa hiko i roto i te paparanga ārai, ka tere ake te tawhito o ngā wāhi he iti rawa te ātete rōrahi, ā, ka noho hei wāhi pea mō te rahunga.
Kāore ngā taura AC e whakaatu ana i tēnei āhuatanga. I roto i ngā kupu māmā noa, he ōrite te tohatoha o te taumahatanga ki ngā rauemi taura AC, engari i roto i ngā taura DC, ka arotahi tonu te taumahatanga whakamarumaru ki ngā wāhi ngoikore. Nō reira, me rerekē te whakahaere i ngā tukanga hanga me ngā paerewa mō ngā taura AC me DC.
Polyethylene honohono-whiti (XLPE)He whānuitia te whakamahinga o ngā taura whakamahana i roto i ngā tono AC nā ō rātou āhuatanga hiko me te ā-tinana pai rawa atu, tae atu ki tō rātou ōwehenga utu-mahi teitei. Heoi, ina whakamahia hei taura DC, ka pāngia rātou e te wero nui e pā ana ki te utu ā-wāhi, he mea tino nui i roto i ngā taura DC ngaohiko teitei. Ina whakamahia ngā polymer hei whakamahana taura DC, he maha ngā mahanga ā-rohe i roto i te paparanga whakamahana ka puta te kohikohinga o ngā utu ā-wāhi. Ko te pānga o ngā utu ā-wāhi ki ngā rauemi whakamahana ka kitea nuitia i roto i ngā āhuatanga e rua: te whakapōturi o te mara hiko me ngā pānga whakapōturi kore-mara hiko, e rua ēnei he tino kino ki te rauemi whakamahana.
Ko te utu ātea e pā ana ki te utu nui atu i tua atu i te koretake hiko i roto i te hanganga o tētahi rauemi nui. I roto i ngā mea totoka, ka herea ngā utu ātea pai, kino rānei ki ngā taumata pūngao ā-rohe, ka puta he pānga pōraritanga i roto i te ahua o ngā pōraron kua herea. Ka puta te pōraritanga utu ātea ina kitea ngā iona kore utu i roto i tētahi rauemi dielectric. Nā te nekehanga iona, ka kohikohi ngā iona kino i te atanga e tata ana ki te irahiko pai, ā, ka kohikohi ngā iona pai i te atanga e tata ana ki te irahiko kino. I roto i tētahi mara hiko AC, kāore e taea e te hekenga o ngā utu pai me ngā utu kino te pupuri i ngā huringa tere o te mara hiko auau mana, nō reira kāore e puta ngā pānga utu ātea. Heoi, i roto i tētahi mara hiko DC, ka tohatoha te mara hiko i runga i te ātete, ka arahi ki te hanganga o ngā utu ātea me te pā ki te tohatoha mara hiko. He maha ngā āhua ā-rohe kei roto i te whakamātao XLPE, ka tino kino ngā pānga utu ātea.
He hononga matū te whakamātao XLPE, ka hangaia he hanganga hononga whakauru. Hei pūmua kore-porowhita, ka taea te whakarite i te taura ki tētahi pūnga nui. Ina mutu te tuku hiko DC, he rite ki te utu i tētahi pūnga. Ahakoa kua whenua te matua o te arataki, kāore e puta he tukunga whai hua, ka waiho he nui te kaha DC e rongoatia ana i roto i te taura hei utu ātea. Kāore i rite ki ngā taura hiko AC, e horahia ana ngā utu ātea mā roto i ngā mate hiko-kore, ka kohikohia ēnei utu i ngā hapa o te taura.
I roto i te wā, me te maha o ngā motuhanga hiko, me ngā piki me te heke o te kaha o te iahiko, ka nui haere ngā utu wāhi ka kohia e ngā taura XLPE kua whakamahanatia, ka tere ake te koroheketanga o te paparanga whakamahana, ka whakaiti hoki i te roa o te ora o te taura.
Wā tuku: Maehe-10-2025