ZR-YJV 8.7/35KV 25-1200mm² 1-3 matua Waenga me te ngaohiko teitei te mura o te mura hono-whakawhiti taura hiko matua parahi
Whakaahuatanga Hua
Ko te taura hiko whakahiato polyethylene hono-whakawhiti ehara i te mea he pai te hiko, he taonga miihini, engari he kaha te aukati ki te waikura matū, te koroheketanga wera me te ahotea o te taiao.He ngawari tona hanganga.Ko te pāmahana whakahaere mo te wa roa ko te 90ºC. He watea ki te whakamahi ka taea te whakatakoto me te kore herenga o nga taumata rereke.
Whakaroa te hora o te mura ki te taha o te taura kia kore ai e toro te ahi.Na te iti o te utu, ka whakamahia nuitia i roto i nga taura ahi.I raro i nga tikanga o te taura kotahi, te whakatakoto paihere ranei, ka taea te whakahaere i te horapa o te mura i roto i tetahi awhe ka wera te taura, na ka taea te karo i nga aitua nui na te ahi, kia pai ake ai te taumata aukati ahi o te raina taura. .
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Nga Tohutohu Hua mo te Whakamahi
A) i te wa o te mahi noa o te taura, ko te teitei o te whakamahana o te kaiwhakahaere kia 70 ℃ mo te whakamaarama PVC me te 90 ℃ mo te whakamaera XLPE.
B) Te pāmahana teitei o te kaikawe i roto i te ara iahiko poto (kaore e neke ake i te 5 hēkona te roanga):
PVC insulation -- 160 ℃ mo te waahanga whakawhiti ≤300mm2, 140 ℃ mo te waahanga whakawhiti kaiwhakahaere> 300mm2;Whakawhitiwhiti PVC i te 250 ℃.
C) I te wa e whakatakoto ana i nga taura, kaua e iti iho te pāmahana ambient i te 0 ℃, a ko te radius piko e whakaaetia ana e whai ake nei:
Kotahi te taura matua: 20D kore, 15D
Tauera maha-matua: 15D mo te kore patu, 12D mo te patu
Kei hea: D- te diameter o waho o te taura.
D) Te kaha pakaru taura:
Konumohe taura matua: 40×S (N)
taura matua parahi: 70×S (N)
Tuhipoka: Ko S te tapeke o te horahanga whitinga o te kaikawe
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Tawhā hangarau hua
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Nga waahanga hanganga hua
1, Ko te taura kei runga i te IEC 60502-1 me te paerewa GB.
2, 20 ºC conductor DC parenga: matua parahi ≤ 0.017241Ωmm2/mo matua konumohe ≤ 0.028Ωmm2/m.
3, te karaehe mura ahi A, B, C, D, iti paowa halogen-kore WDZ, momo ahi-atete NH, ka taea te whakarite ZA-YJV, ZB-YJV, ZC-YJV (ZR-YJV), WDZ-YJV, N-YJV (NH-YJV).
4.Ko te teitei o te pāmahana mahi mo te taura yjv he 90ºC.
5, kia whakatakotoria te taura ki te pāmahana ambient o kore iti iho i te 0 ºC, kia nui atu i te 20 nga wa te diameter o waho o te taura te pūtoro piko taura tāuta.<5PC.
4, Ko te pāmahana whakatakoto kia kaua e iti iho i te 0ºC.
5. Ki te puta he ara iahiko poto, kia kaua e neke ake i te 160ºC te pāmahana teitei o te kaiwhakahaere mo te roanga o te 5 hēkona.
He pai te 6.YJV YJLV mo te whakatakotoranga o roto me waho, engari kaore e taea te kawe i te mahi a te miihini o waho.Ko te yjv22, yjlv22 he pai mo te tanu tanu, ka taea te kawe i te mahi a te miihini o waho, engari kaore e taea te kawe i te kaha nui.
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Taipitopito hua
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Ko nga hua kopere pono
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He kokonga o te awheawhe whakaputa
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Puka hua
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Nga ahuatanga tono hua
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