Kushishino lweengcingo kunye neentambo, ukuqinisekiswa kwe-UL ngumgangatho wegolide womgangatho kwimarike yaseMntla Melika kunye{0}}nosetyenziso oluphezulu kwihlabathi jikelele. KwayeXLPE, -i-polyethylene edityanisiweyo, yeyona nto iphambili yokuchonga imathiriyeli yokugquma. Enkosi kumsebenzi omangalisayo osuka kwinkqubo-yokudibanisa, kukuhamba{3}}kwisisombululo samandla ombane aphakathi naphezulu, kunye{4}}neendawo zobushushu obuphezulu.I-XLPE yenza i-3D yenethiwekhi yesakhiwo semolekyuli ngokusebenzisa ikhemikhali okanye idibanisi ebonakalayo{7}}. Xa kuthelekiswa nezinto ze-PE zemveli, linyathelo elikhulu lokuxhathisa ubushushu, amandla oomatshini kunye nokufakelwa kombane. Ingasebenza kwiqondo lobushushu elizinzileyo le-90~150 degree, kwaye iphantsi{12}}nomsi, i-halogen{13}isimahla, idangatye{14}}iyabuyiswa kwaye i-eco{15}}inobubele. Loo nto iyenza ilunge kakhulu kwiimfuno zogcino lwamandla, izixhobo zemizi-mveliso, izixhobo zasekhaya nokunye.Namhlanje, siza kujolisa kwiimodeli ezine zocingo ze-UL ezine ezithandwayo ze-UL ezine-XLPE zokugquma -UL3817, UL3271, UL3321kwayeUL3289-kwaye bacazulule iimpawu zabo eziphambili zobugcisa kunye neemeko abakulungeleyo.
Elona xabiso lingundoqo le-XLPE yokugquma: Kutheni ilukhetho olukhethwayo kwiingcingo eziphezulu-zesiphelo?
Uncedo lwe-XLPE lusuka kwinkqubo engundoqo "yomnqamlezo-yokudibanisa". Ngokuphula iintambo ze-molecular ze-polyethylene kunye nokwenza iibhondi zebhulorho, iguqula ukusuka "kwisakhiwo somgca" ukuya "kwisakhiwo sothungelwano", okukhokelela ekuphuculweni okubanzi ekusebenzeni: Okokuqala, ukuxhathisa ukushisa kuphuculwe kakhulu. Ixesha elide-lobushushu bokusebenza bexesha elide le-PE yi-70℃kuphela, ngelixa i-XLPE inokumelana nokusebenza okuzingileyo kwi-90℃- 150℃, kunye{7}}nobushushu obugqithileyo bexesha elifutshane obufikelela kwi-130 degree, kwaye inokumelana ne-250℃ngexesha leesekethe ezimfutshane; Okwesibini, ukusebenza kombane kugqwesileyo, kunye nokumelana okuphezulu kwe-insulation kunye nelahleko ephantsi ye-dielectric, efanelekile kwiimeko zombane ophakathi kunye nophezulu, kwaye umaleko we-insulation ufana kwaye kulula ukuwuxobula, ukuququzelela ukwakhiwa kunye nokufakwa; Okwesithathu, ukuguquguquka kokusingqongileyo kunamandla, ukumelana ne-oyile, iasidi kunye nealkali, ukumelana nefuthe lomatshini, kwaye ngaphandle kwe-halogen, i-flame retardant kwaye ayivelisi i-halogen enetyhefu ngexesha lokutsha, idibana nemigangatho ye-RoHS yokusingqongileyo, ngaloo ndlela inika ixesha lokufuduka kwabasebenzi kunye nokukhusela izixhobo. Olu didi lweempawu lwenza ukuba i-XLPE ifakwe kwi-UL iingcingo ezigqunyiweyo zibe yeyona nto iphambili yokukhetha ukutshintsha iintambo ze-PVC kunye nokuziqhelanisa neemeko eziphezulu{12}}zesiphelo.
Inkcazo ebanzi yeeModeli ezine ezingundoqo: Umahluko wokuSebenza ulungelelaniswe kwiimeko ezahlukeneyo
UL3817: I-Adapter enamandla ephezulu{1}}ye-voltage yeeNkqubo zokuGcina amandla
I-UL3817 yiXLPE{1}}icingo eligqunyiweyo eliyilelwe ngokukodwa iimeko eziphakathi neziphakamileyo{2}}zevoltage, ezinobushushu obuyi-125℃kunye neAC voltage ye-3000V – lungqamana olugqibeleleyo lobunzima obuphezulu{5}}ivoltage kunye neemfuneko eziphezulu zogcino lobushushu obuqinileyo okanye obuphezulu{6}ubuxhakaxhaka bogcino lobushushu okanye ubushushu obuphezulu beenkqubo ze-conducterstratestratesta. ubhedu olukhonkxiweyo / ubhedu olungenanto, kunye ne-insulation layer yimathiriyeli ye-XLPE. Iyaziphumelela zombini iimvavanyo zokutsha ezithe tye kunye ne-CSA FT2, ngoko ke inazo zombini idangatye kunye ne-eco{10}ubuhlobo obugqunyiweyo. Ngokwesakhiwo, i-UL3817 inomaleko ongqindilili olinganayo, kwaye iyafumaneka kwiigeyiji zocingo ukusuka ku-AWG 30 ukuya kuthi ga kwi-1mm ukuya kwi-5/0 ububanzi, ukusuka kwi-4/0 ukuya kwi-5. 19.00mm. Unokukhetha uhlobo oluchanekileyo ngokuguquguqukayo ngokusekwe kwiimfuno zendawo zezixhobo zakho zokugcina amandla. Ekusetyenzisweni kwehlabathi{20}kwenyani,UL3817isetyenziselwa ikakhulu ukudibanisa kwicala le-DC leenkqubo zokugcina amandla ombane - phakathi kweemodyuli zebhetri, amaqela ebhetri, kunye naphakathi kwamaqela ebhetri kunye neebhokisi zokuhlanganisa kunye neePCS. Ngokusebenza kwayo kombane okugqwesileyo kunye -neempawu ezisezantsi zehalogen{2}esimahla, idlala indima ephambili{3}}kwizikhululo zamandla zokugcina amandla kunye nezixhobo zokugcina amandla kwindawo yokuhlala. Ikhusela ngokufanelekileyo ukuguga kwe-insulation phantsi kobushushu obuphezulu kunye ne-voltage ephezulu, kwaye iqinisekisa ukusebenza okuzinzile kwayo yonke inkqubo yokugcina amandla.
UL3271: Umdlali oguquguqukayo kwiimeko zoshishino jikelele
I-UL3271 yeyona XLPE-eyeyona iguquguqukayo kakhulu -ngocingo olugqunyiweyo olunomthamo olinganisiweyo we-600V kunye nomgangatho wobushushu osebenzayo ukusuka ku--40℃ukuya kwi-125 degree. Isebenza kakuhle kuzo zombini ufakelo olusisigxina kunye{10}}nesantya esisezantsi sezicelo ezihambayo, oko kuyenza ibe yeyona nto ilungileyo yokukhetha iintambo kwizixhobo zemizi-mveliso. I-conductor yayo i-copper engenanto edibana nemigangatho ye-IEC 60228 ye-Class 5, kunye ne-cross-linked-insulation layer inikezela ukuchasana kweekhemikhali okugqwesileyo - inokumelana ne-acids, i-alkali kunye neentlobo ezithile zegrisi. Ikwadlula iimvavanyo zokunqanda umlilo, ngoko ihlangabezana neemfuno zokhuseleko lweendawo zoshishino. Xa kuziwa kwizicelo,UL3271isetyenziselwa ukukhokela iimoto, ii-transformers, iipaneli zokuhambisa kunye neentambo zangaphakathi kwizixhobo zendlu. Ingaba iimodyuli zokulawula kwimigca yokuvelisa ngokuzenzekelayo okanye ukudibanisa kombane kwizixhobo zonxibelelwano, ukusebenza kwayo okuzinzile kunciphisa ixesha lokuphumla elingacwangciswanga elibangelwa yimpazamo. Ngaphezulu koko, lo mzekelo unokwenziwa ngokwezifiso kwiindidi zemibala esemgangathweni, okwenza kube lula ukuhlukanisa izibonakaliso ezahlukeneyo ngexesha locingo. Ubuncinane berediyasi yokugoba yi-4 nje yobukhulu bentambo yofakelo lofakelo olusisigxina, ngoko ke ilungele ukubekwa kwindawo ezixineneyo, ezintsonkothileyo.
UL3321: Isisombululo socingo esikhethekileyo sobushushu obuphezulu{1}}kwizixhobo zendlu
I-UL3321 yeyona ineqondo eliphezulu lokumelana nobushushu kwezi modeli zine - inobushushu obufika kwi-150℃kunye nombane olinganisiweyo we-600V, kwaye yenzelwe ngokukodwa izixhobo zasekhaya nezamashishini ezisebenza kwindawo{3}}zobushushu obuphezulu. Isebenzisa iikhonduki zobhedu ezibotshelelweyo ezinomaleko wokugquma we-XLPE, ziqhayisa ngokubuyiswa komlilo obalaseleyo kunye nokumelana nokunyibilika. Iyakwazi ukusebenza ngokuzinzileyo{6}}kubushushu obuphezulu bezixhobo zekhaya ezifana nee-oveni, izifudumezi kunye nezomisi, zime ukuya kumaqondo obushushu aphezulu aqhubekayo avela xa ezi zixhobo zisetyenziswa kwaye inqanda umaleko wokugquma ukuba uthambe okanye ujike. Ukuthetha ngobuchwephesha, i-UL3321 iqinisekisiwe kwi-UL758 kunye nemigangatho ye-UL1581, kwaye ihlangabezana neemfuno ze-RoHS kunye ne-Low Voltage Directive. Umbane wovavanyo lwayo unokufikelela ku-2000V ukuya ku-3500V ngokuxhomekeke kwigeyiji yocingo, ngoko ke ukuthembeka kwayo kokugquma kuphezulu{14}}notshi. Ngaphandle kwezixhobo{16}}eziphezulu zobushushu, le modeli ikwasetyenziselwa iingcingo zangaphakathi kwizixhobo zefektri ezifana nezifudumezi zemizi mveliso kunye{17}}nobushushu obuphezulu be-oveni. Naphantsi kweemeko ezinzima eziphindwe kabini zobushushu obuphezulu kunye nombane ophezulu, isenokugcina ukusebenza kombane okuzinzileyo kunye namandla omatshini.
UL3289: -ubushushu obuphezulu obuhambelanayo koomatshini kunye nezixhobo zekhaya
I-UL3289 inikezela ukusebenza ngendlela efana ne-UL3321, kwaye amandla ayo aphambili alele kwiipropathi zayo ezibalaseleyo zoomatshini kunye nokuncitshiswa komlilo. Umaleko wayo wokugquma we-XLPE uphathwe ngokukodwa ukuba ungagugi kakhulu kwaye unganyangeki kwimpembelelo – awusayi konakaliswa ngokulula kwiimeko apho isixhobo singcangcazela kakhulu okanye sishukuma rhoqo. Ikwadibana ne-IEC 60332 - 1-2 FT2 kumgangatho we-flame retardant, kunye neempawu ezizicimayo ezinamandla kunye nokuxinana komsi ophantsi xa ubonakaliswe emlilweni. Xa kuziwa kwizicelo,UL3289idla ngokusetyenziselwa ukukhokela iimoto, iintambo zangaphakathi kwizixhobo zendlu, kunye noqhagamshelo lombane koomatshini boshishino. Ilunge ngakumbi kwizihlandlo ezifuna ukuxhathisa ubushushu obuphezulu kunye nozinzo olulungileyo lomatshini, njengoomatshini abakhulu bokuhlamba kwimizi-mveliso kunye nezixhobo zokuhambisa ezisebenza kwiimeko zobushushu obuphezulu{1}.Xa kuthelekiswa nobushushu obuphezulu.UL3321, le mifuziselo mibini inika{0}}ubushushu obuphezulu obufanayo. Unokukhetha phakathi kwabo ngokuguquguqukayo ngokusekelwe kwiimfuno ezithile zoomatshini besixhobo sakho kunye nohlahlo lwabiwo-mali lwakho.
| Isimbo |
Ulinganiso lweVoltage |
Ubushushu obulinganisiweyo |
| UL3817 | 3000V AC | I-125 degree |
| UL3271 | 600V | I-125 degree |
| UL3321 | 600V | I-150 degree |
| UL3289 | 600V | I-150 degree |
Xa ujonga iparameter theyibhile ebesihambe kuyo ngaphambili, xa ukhetha i-XLPE{0}}iingcingo ze-UL ezigqunyiweyo, kufuneka uqwalasele izinto ezintathu ezingundoqo: ubushushu, umbane, kunye nenkqubo yescenario.Kuseto logcino lwamandla aphezulu{2}}oluphezulu, i-UL3817 yeyona nto uyikhethayo. Kwi-150 degrees phezulu{6}}kwimo engqongileyo yobushushu obuphezulu{7}}njengobushushu obuphezulu bezixhobo zasekhaya kunye nezifudumezi zamashishini, nokuba yi-UL3321 okanye UL3289 iyakusebenza ngokugqibeleleyo. Xa kufikwa kwizixhobo zoshishino jikelele, iimodyuli zonxibelelwano, iimoto ezihamba phambili, kunye neemeko ezifanayo, i-UL3271 igqame ngokuguquguquka kwayo kunye neendleko -zokusebenza.Ngexesha elinye, kufuneka uqinisekise ukuba igeyiji yocingo ihambelana nendawo yokufakela. Ufakelo olusisigxina, nikela ingqalelo kwi-radius yokugoba esezantsi. Kwiimekobume ezikhethekileyo{16}}ezifana nezo zinekhemikhali okanye ukufuma okuphezulu{17}}kabini{18}}jonga imveliso yokumelana nemozulu kwiparamitha ukuqinisekisa ukuba iyahlangabezana nemigangatho ye-UL kunye neemfuno zoshishino ezifanelekileyo.
Isiphelo: Indlela yexesha elizayo ye-XLPE egqunywe ngeengcingo ze-UL
Ngophuhliso olukhawulezayo lwemimandla efana nokugcinwa kwamandla, amandla amatsha, kunye nokuveliswa okuphezulu{0}}, iimfuno zokumelana nobushushu obuphezulu{1}, ukhuseleko lwendalo esingqongileyo, kunye nokusebenza kokhuseleko lweengcingo kunye neentambo bezisoloko zikhula. Iingcingo ze-XLPE ezigqunyiweyo ze-UL, ngenxa yeenzuzo zazo ezingenakuphinda zibuyiselwe, zibone ukukhula okuqhubekayo kwimfuno yemarike. Uyilo olwahlukileyo lweemodeli ezifanaUL3817, UL3271, UL3321, kwayeUL3289Ijongana ngokuchanekileyo iimeko ezahlukeneyo ukusukela{0}ugcino lwamandla evoltheji ukuya phezulu{1}}kwizixhobo zobushushu obuphezulu zendlu, ukunika iziqinisekiso ezingundoqo zokusebenza okuzinzileyo kwezixhobo. Kwixesha elizayo, ngokuphinda-phindwa kweenkqubo zonxulumaniso{3}}nophuculo lwemigangatho yokukhuselwa kokusingqongileyo, iingcingo ze-XLPE ezigqunyiweyo ze-UL ziya kuqhubeka zikhula kwicala lamanqanaba ombane aphezulu, ubunzima obukhaphukhaphu, nobukrelekrele, ngokuqhubekayo ukuxhobisa uphuculo kunye noguqulo{4}}lokwenziwa kwemveliso ephezulu.
