Hōʻike ke kaula Jiapu iā ʻoe i nā kumu maʻamau o nā pilikia uwea mana. Hiki ke hoʻokaʻawale ʻia nā ʻano hewa uwea i ka honua, ka pōkole kaapuni, ka hoʻokaʻawale ʻana o nā ʻano nui ʻekolu o nā ʻano hewa penei:
Ua haki kahi pae o ke kaula koʻikoʻi a i ʻole ua haki ka uea multi-phase
I ka hoʻokolohua pili ʻana o ke alakaʻi uwea, ua like ke kūpaʻa o ka insulation o ke alakaʻi uwea me nā ʻōlelo pili o ka laina, akā i ka nānā ʻana i kahi pae a i ʻole nā pae he nui ʻaʻole hiki ke hoʻopili ʻia, a laila ua haki ka uea kumu a i ʻole nā pae he nui.
Uea ʻekolu-kumu hoʻokahi a ʻelua paha kumu honua
ʻO ke kaula ʻekolu-core a i ʻole ʻelua mau alakaʻi core me ka papa hoʻoluliluli insulation e hoʻāʻo ai ma waho o ka pilina, a laila he core a ʻelua mau core i ka insulation resistance telemetry. Inā ʻoi aku ka haʻahaʻa o ke kū'ē ʻana o ke core a me ke core ma mua o ka waiwai maʻamau ma mua o ka waiwai o kēia waiwai kū'ē insulation ma mua o 1000 ohms e kapa ʻia he hewa grounding kiʻekiʻe; I ka ʻaoʻao ʻē aʻe, he hewa grounding haʻahaʻa. Ua kapa ʻia kēia mau hewa ʻelua he mau hewa disconnected a me grounded.
Kaapuni pōkole ʻekolu-paepae
ʻO ka nui o ke kū'ē'ē honua pōkole-kaapuni ka mea i ʻike ʻia ai ke kumu o ka hewa pōkole-kaapuni ʻekolu-paepae. Aia ʻelua ʻano hewa pōkole-kaapuni: ka hewa pōkole-kaapuni haʻahaʻa a me ka hewa pōkole-kaapuni kiʻekiʻe. I ka wā e emi ana ke kū'ē'ē honua o ke kaapuni pōkole ʻekolu-paepae, ʻo ia ka hewa pōkole-kaapuni haʻahaʻa, ma ke ʻano ʻē, he hewa pōkole-kaapuni kiʻekiʻe.
Ka nānā ʻana i ke kumu:
ʻO ka mua: ka pōʻino o waho
ʻO nā pilikia uwea i ka pōʻino o waho ke kumu maʻamau o ka pilikia. Ua hōʻino ʻia ke uwea e nā mana o waho i ka wā e hiki mai ana e hōʻike i kahi wahi nui o ka hāʻule ʻana o ka mana. No ka laʻana, ke kaʻina hana kūkulu paipu lalo o ka honua, ua huki ʻia ke uwea no ka mea ua nui loa ka huki ʻana o ka mīkini kūkulu a ua huki ʻia; ka pale ʻana o ke uwea, ka papa pale ma muli o ke kūlou nui ʻana o ke uwea a me ka pōʻino; ʻoki ʻana o ke uwea i ka ʻili ʻana i ka ʻoki nui ʻana a me nā māka pahi hohonu loa. ʻO kēia mau mea waho pololei e hana i kahi pōʻino i ke uwea.
ʻElua: ka makū o ka pale ʻana
ʻAʻole i hoʻomaʻemaʻe ʻia ke kaʻina hana hana uwea e alakaʻi i ka haki ʻana o ka papa pale o ke uwea; ʻaʻole i sila ʻia nā hui kikowaena uwea; ua hou ʻia ka lima pale uwea i loko o ke uwea i hoʻohana ʻia e ka mea i ʻeha a i ʻole ua pala paha. ʻO kēia nā kumu nui o ka makū o ka insulation uwea. I kēia manawa, emi ka pale ʻana o ka insulation, piʻi ke au, e hoʻoulu ai i nā pilikia mana.
ʻEkolu: ka pala kemika
ʻO ka hana o ke au lōʻihi e ʻae i ka insulation uwea e hana i ka nui o ka wela. Inā hana ka insulation uwea no ka manawa lōʻihi i kahi ʻano kemika maikaʻi ʻole e hoʻololi i kona mau ʻano kino, a laila e ʻelemakule ka insulation uwea a nalowale ka hopena, e kū mai nā pilikia mana.
ʻEhā: hana overload lōʻihi
ʻO ke kaulahao hana lōʻihi i ke kaiapuni, inā loaʻa i ka papa insulation laina nā haumia a i ʻole ka ʻelemakule, me nā mea o waho e like me ka uila a me nā hopena voltage ʻē aʻe, nui ka wela e lawe ʻia mai ka overloading, a maʻalahi loa ka hōʻike ʻana i nā pilikia o ke kaulahao.
Ka manawa hoʻouna: ʻOkakopa-10-2023