Fehokotaki'anga o waea parahi: he arotake o ngā tikanga me te taputapu. Whakapiringa fehokotaki'anga o waea parahi ranei - i te mea pai?

Ko te mahi matua, ka hono ia koutou tetahi whakapā hiko ko te ki te whakarite i to ratou resistance iti. A, no te te tino pai ake te ātete whakapā rawakore i waenganui i nga waea parahi, hua i roto i te taura whakawera. He maha ngā huarahi ki te whakapā atu hononga, engari te pono, me te whai hua tino whakaaro te ki kia paiherea waea parahi. Tenei hangarau taea monolithically hono whenu waea katoa, reira whakatutuki i te ātete hiko raro taea. Ka rite ki te hua o te waea whakawera whakakorea te, te kupu tino nui haere te taumata o te haumaru ahi.

Methods o waea hononga

Konukura Ko te rauemi pēne matua. Na roto i te viivii ore o te āhuatanga physico-matū o tenei rauemi (te ukanga tiketike, kore o elasticity), he ona ake āhuatanga mahi ki a ratou. mea ture taputapu hiko e kia kia whakamana i te ngā mahi i runga i te peka hononga me uaua okontsovyvaniyu o taura me waea i whakapiringa, fehokotakianga, crimping pēpēhinga ranei (tutaki, taringa,, me ētahi atu). He ona ake āhuatanga, ka e kia kōrero i raro ia o ratou.

waea pūhui mā te paea

riria te tea ohie o waea ko Pue, rite ko reira te tino hauarea, hononga poto-ora, me te ahi. Ahakoa tenei, i nga kaimahi kāinga, me te kore e mutu ki te whakamahi i tenei tikanga, ahakoa e taea te mau hopearaa o tenei "mahi" kia tino plavchevnymi.

E kotahi nui drawback kopikopiko tonu waea: hononga parahi iku hauā, ka ngoikore, faifai tino whakangaromia e tika ana ki te ātete whakawhitinga tiketike.

Kia mahara te reira e taea te tono i te tikanga hawai anake i roto i te wā rawa, ki te kahore e wātea ana i te hiahia akiaki ki te whakahoki hiko me te tahi atu huarahi i roto i te āhuatanga ngā. He mea tino nui ki te tiaki e pā ana ki te kounga, te haumaru me te tika o te hononga.

Kei te tino riria ana te reira:

• Hono waea i hanga i ngā rauemi rerekē (konumohe, me te parahi);
• Te hono waea parahi totoka ki te multifilamentary.

Tuhinga tukanga Ko e whai ake:

1. Mārama mātao waea i te tawhiti o te 6-8 cm i te mata;
2. Hoatu tetahi waea ki te atu, me te crosswise whiri maximally mātotoru. Ki te te wāhanga ripeka o te waea parahi neke atu i 1 sq. mm, whakamana te mahi e ki kūmau.
3. Ngau i te tohutohu o Kuku toe waea.
4. kiriweti kowiria te whakamahi i ngā rauemi motuhake tuuraa (pvc, ranei korere Tīngongo wera, potae) ranei te maha o ngā paparanga o te tuuraa i rīpene. Me tika Insulation hopu waea apa tuuraa.

whakamātautau pēhanga

Ko te tukanga ko te tukanga o honotanga waea i roto i to ratou motuhake crimping te ringaringa tubular matamata ranei. E whakamahia ēnei whakaaro, ki te te wāhanga ripeka o te waea parahi ko 2,5-240 sq. mm. painga mâro-o te hangarau crimp he tere me te tika o te mahi, me te te muri hononga mauroa me te haumaru.

Hoki crimping te whakamahi i te taputapu motuhake - aunoa, kūmau waipēhi hiko ranei pēhi obzhimochnye ngaio ranei. ka hāngai Tīpakonga o casings i runga i te maha o ngā wāhanga, me te hono i waea.

I muri i murua me horoi o ora, he ratou whakapiri kiripaka-Vaseline tīpakongia, kakahu ringaringa, me te hua i te crimp. karekau Kōpeketanga mavahe.

Crimping terminals

Taupānga o rerekē crimps terminals me te whānui mahi e honotanga putanga hiko, whakakā, huaki marama, kia rite ki te pai kia rite ki te tāutanga o switchboards. Ēnei whakaaro tukua parahi hono waea totoka tika, me te tere, waea paea engari kahore mua mekameka-ranei crimp ngongo matamata ki te kāpeka tīwiri rawhi e taea.

kia ngā te painga mâro-o te terminals takahuri hononga waea konumohe ki parahi, a hoki kahore he take mo te wehe muri o hoapā.

Heoi, e kore te mea tenei momo o te hononga, kahore kohakore. Me ia tiaki wā, e ngā i roto i romia e ia te huānga clamping. Konukura - he rauemi rawa ngohengohe, e pängia ana ki "leakage" i raro i te kawenga. Ki te ara te mahi hononga i te tikanga o etaeta puna-utaina terminals cleat, e tika ana ki te papa wāhi whakapā iti rawa i te pikaunga taimaha he wera, me te tuku i ngā huānga puna, ai heke tahi ratou elasticity ki te kounga pūhui.

Pike VU-fehokotaki'anga

Ki te whakarite whakapā pai te tino whakamahia nuitia whakapiringa fehokotaki'anga o waea parahi ranei. Ko te pai o enei tikanga? Tino, fehokotakianga. Ko te take i te whakapiringa - he āhua mahi a, me te roa tukanga, rawa, ki te hiahia koe ki te hono taura parahi paea. Plus, faifai whakangaromia nga pūhui commissural tika ki te aroaro o te toru, atu pōkurukuru, me te ngāwari fusible te whakarewa - tūhoto. Ko te aroaro o te parenga whakawhiti i roto i te hononga o alloys rerekē whai wāhi ki te ahua o te tauhohe matū haamou me ētahi atu tukanga tōraro.

A, no te whakamana fehokotaki'anga te waea parahi, te wā "whakapā" te tikanga riro no te whiwhi te pūhui nukurau i te momo kotahi o te whakarewa. Noatia, rerekē enei pūhui record ātete iti, ai te whakauaua tukua te wera.

whakapiringa

Tonu kia tuhia te reira e titau i tenei mahi he nui etahi o te matauranga, me te wheako. Haapapu, engari kei te pai kowiria te kounga whakapiringa rawakore, mahara tenei.

haamata tukanga whakapiringa ki te maimoatanga-mua o nga pito o te mātao waea me waikura. Na e hurihia ratou, pani ki te taonga motuhake - te rere, katahi hocus. Tūhoto te waea parahi e kore e taea e anake, engari ano hoki konumohe, te mea matua - ki te whiriwhiri i te rere tika, me te tūhoto. e kore e whakamahi i rere waikawa kaha tūtohutia, kia rite ki te hiahiatia ai ki te noho i runga i te waea, penei e rewa te pūhui kia hohoro.

e kotahi whakapiringa he wa roa, engari ki te mahi tika, ka kia pono, me te roa he hononga. Kia kua matao o te waea, me te āta kiriweti ratou.

fehokotaki'anga

Ko te tiketike-kounga tino me hononga haumaru hanga he waea fehokotaki'anga parahi. E kore e te ātete i roto i te waea whakapā nui te mehua paerewa o ratou resistance. e kore e tenei tikanga rapua e nui te wā me te te whakaaro ki te kia āhua ohie. I roto i te aroaro o nga pūkenga iti rawa, me te mōhiotanga o te fehokotaki'anga o waea parahi i te whare, ko te doable.

A, no te mau ana i roto i te mahi fehokotaki'anga me hei maharatanga nga ture katoa o te ahi, me te haumaru hiko tino. Ki te karo i weranga me whara kanohi kia whakamahi tonu taputapu whaiaro paruru - kakahu tiaki me karapu, fehokotakianga potae ranei mōwhiti.

taputapu fehokotaki'anga

Pūhui waea i te fehokotaki'anga whakamana apparatuses o momo rerekē. Ko reira tino watea ki te whakamahi i tētahi taputapu inverter mō te kakano ia waea parahi, mai e te āhuatanga tenei momo o ngā pūrere i te rahi iti me te taimaha, economical kohi mana me te whānui o te kakano ia tautuhinga nāianei ngā. Enei painga Ko te kaha ki te whakarato i tahunga tonu pewa hiko.

Ki te whakaritea e koe he nui nui o te mahi hiko, he katoa e tika ana, me te whakatikaia te rironga o te inverter mīhini fehokotaki'anga. I tua atu, ka pono tenei taputapu e kore e teka "taimaha mate" i roto i te heke mai.

Āhuatanga o te tukanga o waea fehokotaki'anga i parahi

Ka taea e kakano ia waea parahi kia rua AC me DC ngaohiko i reiti o 15-30 C. He pai ki te whakarato i te pūrere te whai wāhi ki te whakatika i te nāianei.

Hei tauira, ki te Weld te conductors parahi e rua o 1.5 sq. mm, nui 70 A. hoki te fehokotaki'anga o toru waea ki te wāhanga ripeka taua he e tika ana ki te whakapiki ake i te nāianei ki 90 A. Pūhui toru conductors o 2.5kb. ka rapua e mm i 80 ki te 100 A, he waea fehokotaki'anga rima rite - 120 A. Ki te kore e te nāianei fehokotaki'anga tino arotau tīpakohia puta "tāpi" o te kawehiko me ko feunga pūmau te pewa.
Hoki te fehokotaki'anga o waea parahi whakamahia waro-parahi "pene rākau" (electrodes). Ki te kore, e taea ki te whakamahi i tokotoko waro i te pākahiko pene.

mahi fehokotaki'anga

Ko te tohutohu a te roa waea o 5-6 cm i purea e te paninga tuuraa me kua whiria timata i te wāhanga o te mātao, mahue he 5-6 mm i te mutunga o te puka untwisted takawiri. Me horapa ēnei tohutohu, te takai i roto i te whakarara, me te tata ki tahi i te tahi. Na roto i te kopikopiko tonu toru, neke atu rānei waea, i te mutunga e hiahia ana koe tonu ki te waiho e rua anake matamata noa, a ka tapahia te era atu i te wāhi o te a tawhio whakamutunga o takoto ai. Ki te kore he kaha nui te mīhini, ka tukua tenei tea ngāwari ake te hanga i te heitiki rewanga. Ki te reira he rawaka nāianei i roto i te taputapu fehokotaki'anga taea te mahi i te takawiri ohie.

whakauria hawai atu mā clamping fehokotaki'anga. Ki te he ngaro tenei pūrere, ka taea e koe te whakamahi i kūmau tawhito mania.

I paiherea te pūhui rite waro kawehiko. I roto i fehokotaki'anga, kua rewa mahue nga waea parahi pito untwisted mua ki hanga te pōro whakarewa. Ki te whakarite i tētahi waea whakapā hangarau, me te hiko pono, kia kia mohio ki te tiki ki te paenga te rohe rewa.

e kore e roa fehokotaki'anga nui 2-3 hēkona, te kore waea Weld mātao. I muri oti tautauā o te pūhui hua tona wehe mā te whakamahi i ngā papa maha o te rīpene ranei pōtae motuhake, pvc, ranei Tīngongo wera ngongo.