Nā Koina Insulation no nā Uila DC a me nā pilikia me PP

Paʻi ʻenehana

Nā Koina Insulation no nā Uila DC a me nā pilikia me PP

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I kēia manawa, hoʻohana pinepine ʻiamea hookuino nā kaula DC he polyethylene. Eia nō naʻe, ke ʻimi mau nei ka poʻe noiʻi i nā mea hiki ke hoʻokaʻawale ʻia, e like me ka polypropylene (PP). Eia nō naʻe, ʻo ka hoʻohana ʻana i ka PP ma ke ʻano he mea insulation cable e hāʻawi i nā pilikia.

 

1. Pono Mechanical

No ka hoʻokō ʻana i nā koi kumu no ka lawe ʻana, hoʻokomo ʻana, a me ka hana ʻana o nā kaula DC, pono e loaʻa i ka mea insulation kekahi ikaika mechanical, me ka hoʻololi maikaʻi, elongation i ka wā haʻahaʻa, a me ke kūpaʻa haʻahaʻa haʻahaʻa. Eia naʻe, ʻo PP, ma ke ʻano he polymer crystalline nui, hōʻike i ka rigidity i loko o kāna pae wela hana. Hoʻohui ʻia, hōʻike ia i ka brittleness a me ka maʻalahi i ka haki ʻana i nā wahi haʻahaʻa haʻahaʻa, ʻaʻole e hoʻokō i kēia mau kūlana. No laila, pono e nānā ka noiʻi i ka paʻakikī a me ka hoʻololi ʻana i ka PP e hoʻoponopono i kēia mau pilikia.

 

2. Ke kū'ē i ka wā kahiko

I ka wā lōʻihi o ka hoʻohana ʻana, ʻo ka hoʻokaʻawale ʻana o ke kelepona DC e hoʻomāhuahua i nā makahiki ma muli o nā hopena i hui pū ʻia o ka ikaika kiʻekiʻe o ke kahua uila a me ka paikikala wela. Ke alakaʻi nei kēia ʻelemakule i ka hōʻemi ʻana i nā waiwai mechanical a me ka insulation, a me ka hoʻohaʻahaʻa ʻana i ka ikaika haʻihaʻi, e pili ana i ka hilinaʻi a me ke ola lawelawe o ke kaula. Hoʻokomo ʻia ka ʻelemakule insulation cable me nā ʻano mechanical, uila, wela, a me nā mea kemika, me ka ʻelemakule uila a me ka wela ka mea nui e pili ana. ʻOiai ʻo ka hoʻohui ʻana i nā antioxidants hiki ke hoʻomaikaʻi i ke kūpaʻa ʻana o PP i ka wā kahiko o ka thermal oxidative i kekahi ʻano, ʻaʻohe kūpono ma waena o nā antioxidants a me PP, ka neʻe ʻana, a me kā lākou haumia e like me nā mea hoʻohui e hoʻopilikia i ka hana insulation o PP. No laila, ʻo ka hilinaʻi wale ʻana i nā antioxidants no ka hoʻomaikaʻi ʻana i ke kūpaʻa ʻelemakule o PP ʻaʻole hiki ke hoʻokō i ke ola a me nā koi pono o ka insulation uwea DC, pono e noiʻi hou i ka hoʻololi ʻana iā PP.

 

3. Hana ʻia ʻo Insulation

ʻO ka uku o ka lewa, ʻo ia kekahi o nā mea e hoʻopili ai i ka maikaʻi a me ke ola okiʻekiʻe-volt DC uwea, ka hopena nui i ka hāʻawi ʻana i ke kahua uila kūloko, ka ikaika dielectric, a me ka ʻelemakule mea insulation. Pono nā mea insulation no nā kaula DC e hoʻopau i ka hōʻiliʻili ʻana o ka uku o ka lewa, e hōʻemi i ka hoʻopiʻi ʻana i nā uku kikowaena like-polarity, a keʻakeʻa i ka hoʻokumu ʻana i nā kumukūʻai like ʻole-polarity e pale ai i ka hoʻoheheʻe ʻana o ke kahua uila i loko o ka insulation a me nā interface, e hōʻoia ana i ka ikaika haki ʻole. ola uwea.

Ke noho nei nā kaula DC i loko o ke kahua uila unipolar no ka manawa lōʻihi, ʻo nā electrons, nā ion, a me nā ionization haumia i hana ʻia ma ka mea electrode i loko o ka insulation e lilo i uku ākea. Holo wikiwiki kēia mau uku a hōʻiliʻili i loko o nā ʻeke uku, i ʻike ʻia ʻo ka hōʻiliʻili ʻana o ka uku lewa. No laila, i ka wā e hoʻohana ai i ka PP i nā kaula DC, pono nā hoʻololi e hoʻopau i ka hoʻoulu ʻana a me ka hōʻiliʻili.

 

4. ʻO ka hoʻokō wela

Ma muli o ka maikaʻi ʻole o ka thermal conductivity, ʻaʻole hiki ke hoʻopau koke ka wela i hana ʻia i ka wā o ka hana ʻana o nā kaula DC i hoʻokumu ʻia e PP, e hopena i nā ʻokoʻa wela ma waena o nā ʻaoʻao o loko a me waho o ka papa insulation, e hana ana i kahi kahua wela ʻole. Piʻi ka hoʻoili uila o nā mea polymer me ka piʻi ʻana o ka mahana. No laila, ʻo ka ʻaoʻao o waho o ka papa insulation me ka conductivity haʻahaʻa e lilo i prone i ka hōʻiliʻili ʻana, e alakaʻi ana i ka hoʻemi ʻana i ka ikaika o ke kahua uila. Eia kekahi, ʻo nā gradients wela ke kumu i ka injection a me ka neʻe ʻana o ka nui o nā uku o ka lewa, e hoʻohuli hou i ke kahua uila. ʻOi aku ka nui o ka gradient mahana, ʻoi aku ka nui o ka hōʻiliʻili ʻana o ka lewa, e hoʻoikaika ana i ka distortion kahua uila. E like me ka mea i kūkākūkā mua ʻia, ʻo ka wela kiʻekiʻe, ka hōʻiliʻili ʻana o ka lewa, a me ka distortion kahua uila e pili ana i ka hana maʻamau a me ke ola lawelawe o nā kaula DC. No laila, pono ka hoʻomaikaʻi ʻana i ka conductivity thermal o PP e hōʻoia i ka hana palekana a me ke ola lawelawe lōʻihi o nā kaula DC.

 


Ka manawa hoʻouna: Jan-04-2024