YJV 0.6/1KV 1.5-400mm² 1-5 kumu Hana ʻia i Kina

YJV 0.6/1KV 1.5-400mm² 1-5 kumu Hana ʻia ma Kina

ʻO ka wehewehe pōkole:

Huahana Huahana

Hōʻike huahana

Insulated PVC sheathed power cable， Hoʻohana ʻia nā kaula no ka lawe ʻana i ka mana a me nā ʻōnaehana hoʻoili me nā voltages helu o 0.6/1, 1.8/3, 3.6/6, 6/10, 8.7/10, 8.7/15, 12/20, 21/ 35, 26/35KV.
1. XLPE insulated, PVC sheathed power cables (YJV, YJLV) ua kūpono i loko o ka hale, tunnels, paipu, a kanu ʻia i loko o ka lepo (ʻaʻole pili i ka ikaika mechanical)
2. XLPE insulated, steel tape armored PVC sheathed power cables (YJV22, YJLV22) ua kūpono no ka hale, tunnel, pipe penetration, a kanu ʻia i loko o ka lepo.
3. XLPE insulated, kila uwea Armoured PVC sheathed mana uwea (YJV32, 42, YJLV32, 42) kūpono no nā shafts, wai, wahi me ka kulu, a hiki ke ku i waho ikaika)

Nā kuhikuhi huahana no ka hoʻohana

A) i ka hana maʻamau o ke kaula, ʻo 70 ℃ ka wela o ka conductor no ka PVC insulation a me 90 ℃ no XLPE insulation.
B) ʻO ka wela kiʻekiʻe loa o ka mea alakaʻi i ka wā pōkole (ʻaʻole ʻoi aku ka lōʻihi ma mua o 5 kekona):
PVC insulation -- 160 ℃ no ka mea alakaʻi kea pauku ≤300mm2, 140 ℃ no ka conductor keʻa pauku > 300mm2;Hoʻopili ʻia ka hoʻokaʻawale PVC ma 250 ℃.
C) I ke kau ʻana i nā kaula, ʻaʻole e emi ka mahana ambient ma mua o 0 ℃, a ʻo ka liʻiliʻi liʻiliʻi i ʻae ʻia e like me kēia:
ʻO ke kaula kumu hoʻokahi: 20D ponoʻole, 15D pale kaua
Uea nui-core: 15D no ka mea kaua ole, 12D no ka mea kaua
Kahi: D- anawaena maoli o waho o ke kaula.
D) Ka mana uhaki uwea:
Uea kumu alumini: 40×S (N)
Uea kumu keleawe: 70×S (N)
'Ōlelo Aʻo: S ka huina kea o ka mea hoʻokele

Nā palena ʻenehana huahana

Ka helu o nā kumu uwea

Nā hiʻohiʻona hoʻolālā huahana

1. Loaʻa i ka pale wela kiʻekiʻe maikaʻi: Hoʻohana ka XLPE insulation i nā ʻano kemika a i ʻole ke kino e hoʻololi i ke ʻano o nā molekele polyethylene i loko o kahi ʻano pūnaewele ʻekolu.ʻO ka hoʻolālā pūnaewele ʻekolu-dimensional he pale wela maikaʻi a hiki ke hoʻohana ʻia i ka hana lōʻihi ma kahi kiʻekiʻe o 90 degere Celsius, hiki ke ola i nā makahiki he 40.
2. Loaʻa iā ia ka hana insulation maikaʻi: ʻo ka hana ʻana o ka polyethylene ʻaʻole wale ka mālama ʻana i ka hana insulation o ka polyethylene cross-linked, akā loaʻa pū kekahi i ka hoʻomaikaʻi hou ʻana i ke kūpaʻa insulation.
3. ʻO nā waiwai mechanical kiʻekiʻe: ua hoʻomaikaʻi ʻia ka paʻakikī, ka ʻoʻoleʻa, ke kūpaʻa a me ka hopena
4. Ke kū'ē kemika: Loaʻa i ka XLPE ponoʻī ka ikaika o ka waikawa a me ke kūpaʻa alkali a me ka ʻaila
5. Ka palekana o ke kaiapuni: No ka mea, he wai a me carbon dioxide nā huahana o ka polyethylene combustion, he haʻahaʻa ka haumia o ke kaiapuni, a hoʻokō i nā koi o ka palekana ahi.
6. ʻO 90 ° C ka nui o ka mahana i helu ʻia o ka mea lawe kelepona, a ʻo ka mahana kiʻekiʻe o ka mea lawe kelepona i ka wā pōkole pōkole (ʻo ka lōʻihi loa ʻaʻole ma mua o 5S) ʻaʻole ma mua o 250 ° C.