Uxinzelelo lwangoku

Imeko yezinto eziqhelekileyo zokuphila - kufuneka ufake ifowuni entsha okanye utshintshe kwi-dacha. Yonke into - isiseko, i-wire, fasteners, indawo ikhethiweyo ukuba ifakwe. Thatha kwaye wenze. Kodwa hayi! Ukhohliwe ukutshekisha, kodwa ndingayisebenzisa i-wire ekhoyo? Ukuqwalasela oku kubakho, kuyimfuneko ukusebenzisa umgaqo onjengobu buninzi bamandla, nokufumanisa inani elivumelekileyo.

Yintoni esi sibonakaliso kwaye kutheni kubalulekile kangaka? Kukholelwa ukuba phantsi kweemeko eziqhelekileyo ukuhamba kwamandla kagesi kudlulayo kwi-volume yonke yomqhubi. Elula - ixabiso lekhoyo elijikelezayo kwicandelo lomqhubi libhekwa njengexinzelelo. Ukulinganisa kwinkqubo ye -SI, iyunithi enye isetyenzisiweyo, njenge-ampere nganye yemitha (i-A / m 2), kwaye isebenza ukuseka inani langoku elivunyelwe likhoyo elijikelezayo ngetambo.

Uvela phi na iimfuno? Kulula kakhulu. Naliphi na umqhubi unokuxhatshaza ngoku ukuhamba okukhoyo, ngenxa yoko inxalenye yayo "ilahlekile". Le "ilahlekile" yangoku idala umqhubi ukuba atshise. Ukuba ilahleko zikhulu, ukufudumeza ngokugqithiseleyo komqhubi kuya kulandela, kwaye kuya kunyibilika. Ukuze uphephe oku, ukuxinwa kwamandla okwamkelekileyo okwenziwe kuhlobo ngalunye lwesistim, ukuthotyelwa kweemfuno eziza kuqinisekisa ukusetyenziswa kwetayitile.

Ngoku ku funeka kucaciswe ukuba ukuba icandelo lomqhubi alikhethiweyo ngokuchanekileyo, i. Kufuneka ukuba isebenzise umthwalo odla amandla amakhulu, okanye ngexesha elifanayo zibandakanya izixhobo zokusebenza zasekhaya (i-kettle, ikhomputha, iTV, njl.), Ngoko i-current signification iya kubangela ukufudumala kwee-wire kwaye ziya kutyhafaza. Okanye kubangela umlilo.

Yingakho xa ukhetha icandelo locingo okanye nakweyiphi na imeko, xa udibaniso lomthwalo lucetywayo, kuyimfuneko ukuqwalasela ubunzima obuvumelekileyo bokusebenza kwamandla kagesi. Xa wenza umsebenzi wokwakha kule njongo, oonjiniyela basebenzisa iifomula ezikhethekileyo kunye neetafile. Nangona kunjalo, ukubala i- cross-section of wire ukusuka kwisikhululo samanje esivumelekileyo sinika umphumo owamkelekileyo kwindlela yokujonga.

Ngenxa yoko, akukho konke okufunekayo ukusebenzisa iifomula eziyinkimbinkimbi kunye neetafile ezinzima. Omnye udinga kuphela ukuqwalasela ixabiso elilodwa - ukuxinwa kwamanje kwindawo yentsimbi yobhedu akufanele kudlule ngaphezulu kweesithandathu ukuya kwi-amperes nganye kumitha wesikwere. Millimeter. Idata enikeziwe iyasebenza ngokubhedu. Ekubeni iintambo zobhedu zisetyenzisiweyo, iinkcukacha ezichanekileyo kufuneka zanele ngokwaneleyo ukuba zinokusetyenziswa ukuba zingasetyenziswa.

Kubalulekile ukuqonda la manani ngolu hlobo lulandelayo. Ngokusebenza kwexesha elide, ukuxinwa kwamandla kwisekethe akufanele kudlule i-6 A / sq. Mm. Emva koko i-wiring isebenza kwimodi elula kwaye ingasetyenziswa ixesha elide. Nangona kunjalo, inokusetyenziswa kwi-10 A / sq. Mm, kodwa le meko imele ibe yimfutshane.

Oku kungasetyenziswa njani ngokusebenza? Kubalulekile ukuchonga umthwalo oxhunyeleyo. Makube, umzekelo, ngokukhawuleza ujike i-candle enezibane ezi-100 ze-W, iTV, ikhompyutha, i-friji. Amandla alonke ayedluli kwi-5 kW, sihlula lo mzobo ngombane wenethiwekhi, sihlula ngo-5000 W ukuya ku-220 V, sifumana i-23A ngokujikelezayo. Ngenxa yoko, ukuqinisekisa ukuhamba kwexesha elifutshane lolo suku kufuna i-cross cross cross section ye 2.5 square meters. Millimeter.

Unokufikelela kule ngxaki ngendlela eyahlukileyo. Ukuba isiseko sibhaliwe ukuba senzelwe u-6A okwangoku, sebenzisa iinqwelo zethusi zecandelo elingaphantsi kwekwele enye. UMm akayimfuneko, isiseko sitshisa ngaphambili. Ngolwazi kuphela - ukuba i-aluminium isetyenziswe njengezinto eziphathekayo, ngoko ukuxinwa kwamandla okwi-4-6 A / sq. Mm. Ngoko ke, usebenzisa la manani, unokwazi ukuba yeyiphi inxalenye yecingo kufuneka isetyenziswe kwisixhobo socingo.

Kule nkcukacha engenhla, inkcazo yegama elithi "ukunyaniseka kwamanje" linikezelwa. Iimfuneko zesicelo sayo sokukhetha i-cross section section of threads ichazwe. Iziphakamiso ezisebenzayo ekusebenziseni le parameter emsebenzini zinikwe.