HE AHA KA ʻOKOʻA MA WAENA O KE KAUWAE MANA A ME KE KAUWAE MA LUNA?

1. Nā kaula like ʻole

1. Uea mana

ʻO nā uwea mana he mau uwea i hoʻohana ʻia no ka hoʻouna ʻana a me ka hāʻawi ʻana i ka ikehu uila. Hoʻohana pinepine ʻia nā uwea mana ma nā pūnaewele mana ma lalo o ke kūlanakauhale, nā laina alakaʻi kikowaena mana, ka lako mana kūloko i nā ʻoihana ʻoihana a me nā ʻoihana eli, a me nā laina hoʻoili ma lalo o ka wai ma nā muliwai a me nā kai.

2. Uea ma luna

ʻO nā kaula lewa (inoa piha ʻo nā kaula insulated overhead) he mau alakaʻi overhead i lako me nā papa insulating a me nā ʻūpā pale. Hana ʻia lākou e kahi kaʻina hana e like me nā kaula i hoʻopili ʻia. Ala.

ʻElua, ʻokoʻa ka hoʻokaʻawale ʻana

1. Uea mana

Wahi a ka pae uila, hiki ke hoʻokaʻawale ʻia i nā kaula mana uila waena a me ka haʻahaʻa (35kV a ma lalo), nā kaula uila kiʻekiʻe (ma luna o 110kV), nā kaula uila kiʻekiʻe loa (275-800kV) a me nā kaula UHV (1000kV a ma luna). Eia kekahi, hiki ke hoʻokaʻawale ʻia i nā kaula AC a me nā kaula DC e like me ka ʻōnaehana o kēia manawa.

2. Uea ma luna

ʻO nā kaula overhead maʻamau he kumu hoʻokahi, hiki ke hoʻokaʻawale ʻia i ke ʻano uea alumini paʻakikī, ke ʻano uea keleawe paʻakikī, ke ʻano uea alumini alloy, ke ʻano kila kila a i ʻole ke ʻano kākoʻo kumu alumini alloy a me ke ʻano hana ʻekolu-kumu ponoʻī e like me kā lākou ʻano like ʻole (Hiki i ke kumu uea ke alumini paʻakikī a i ʻole ke uea keleawe paʻakikī) a pēlā aku.

ʻEkolu, nā ʻano like ʻole

1. Uea mana

1) Kapuahi liʻiliʻi. Ma ke ʻano laulā, kanu ʻia i loko o ka lepo a waiho ʻia paha i loko o ka hale, i loko o nā ʻauwaha a me nā tunnels, he liʻiliʻi ka mamao o ka insulation ma waena o nā laina, ʻaʻohe pou a me nā hale kiaʻi e pono ai, a noho ia i ka ʻāina liʻiliʻi a ʻaʻole hoʻi e noho i kahi ma ka honua.

2) Hilinaʻi kiʻekiʻe. ʻAʻole i hoʻopilikia nui ʻia e nā kūlana aniau a me ke kaiapuni a puni, a paʻa ka hana hoʻoili.

2. Uea ma luna

1) Hilinaʻi kiʻekiʻe o ka lako mana

ʻO ka hoʻohana ʻana i nā kaula overhead hiki ke hōʻemi nui i nā ʻano hewa pōkole āpau (ʻoi aku hoʻi nā hewa flashover maʻamau o nā uea ʻōlohelohe overhead), a ʻo ka helu hāʻule ʻana he 4-6 mau manawa haʻahaʻa ma mua o nā uea ʻōlohelohe overhead.

Ua hoʻāʻo ʻia ke kaula uila home ma Shanghai i ka makahiki 1988. Ua hele ka kaula uila hoʻāʻo ma ke alanui nui o ke Alanui Huaihai. Ma hope o ka hoʻāʻo ʻana i ke kau makani ʻino ma Shanghai a me ke kiʻekiʻe o ka mahana i ke kauwela, ua holo maikaʻi ia, a ua emi nui ka hemahema o ka lako mana i hoʻohālikelike ʻia me ke kaula uila mua. ʻAʻole e hoʻopuka nā kaula uila i nā kumu wai i ka wā e hoʻohana ʻia ai, a ʻaʻole e emi nui ka maikaʻi o ka insulation o nā kaula ma hope o nā makahiki o ka hana.

2) Palekana lako mana maikaʻi

ʻO ka hoʻohana ʻana i nā uaea luna e hōʻemi nui ana i nā pōʻino pilikino i ka haʻalulu uila.