Iibhloko ze-terminal zamanqanaba amaninzi zinokukhawulezisa ukufakela kunye nokugcina indawo, ukuthatha uqhagamshelo kumgangatho ophezulu

Nayiphi na ipaneli yolawulo yombane okanye yombane inokufuna iingcingo.Ingaba isicelo sesezixhobo zabathengi, izixhobo zorhwebo, okanye iinkqubo zoshishino, abaqulunqi kufuneka bakhethe iimveliso ezithembekileyo ekulula ukuzifaka kwaye banokusebenza ngokuthembekileyo iminyaka emininzi.Iibhloko zetheminali ziyahlangabezana nezi mfuno kwaye zezona ndlela zixhaphakileyo zokudibanisa imigca yebala lombane enezixokelelwano zombane ezifakwe kwiphaneli kunye namandla.
Eyona nto ixhaphakileyo kunye nesiqhelo se-screw-type-single-layer terminal sisisombululo esilula, kodwa asisoloko sisona sixhobo sisebenzayo sokusebenzisa indawo okanye abasebenzi.Ngokukodwa xa abantu becinga ukuba iingcingo ezininzi zifakwe ngendlela yezibini ezisebenzayo okanye amaqela amathathu, ii-terminals zamanqanaba amaninzi ngokucacileyo zineenzuzo zokuyila.Ukongeza, iindlela ezintsha zohlobo lwentwasahlobo zithembeke ngakumbi kwaye kulula ukuzifaka kunemveliso yohlobo lwe-screw.Xa ukhetha iibhloko ze-terminal kuso nasiphi na isicelo, abaqulunqi kufuneka baqwalasele izinto zefom kunye nezinye iimpawu zemveliso ukufumana eyona ntsebenzo ingcono.

Ulwazi olusisiseko lweebhloko zetheminali
Ibhloko esisiseko ye-terminal ibandakanya iqokobhe lokugquma (ngokuqhelekileyo uhlobo oluthile lweplastiki), enokufakwa kumzila kaloliwe we-DIN ohambelana nemigangatho yoshishino okanye ebotshwe ngokuthe ngqo kwipleyiti yangasemva ngaphakathi kweqokobhe.Kwiibhloko ze-terminal ze-DIN ezidityanisiweyo, izindlu zihlala zivulekile kwicala elinye.Ezi bloko ziyilelwe ukuba zipakishwe kunye ukwandisa ukongiwa kwendawo, kwaye isiphelo esinye kuphela sesitaki sifuna i-end cap (Figure 1).

1. Ibhloko ye-terminal stackable ye-DIN yohlobo lwe-DIN yindlela edibeneyo nethembekileyo yokudibanisa i-wiring ye-industrial-grade.
"I-Feedthrough" ii-terminals zihlala zinendawo yokudibanisa ucingo kwicala ngalinye, kunye nomtya wokuqhuba phakathi kwala manqaku mabini.Iibhloko zetheminali zesiNtu zinokuphatha isekethe enye kuphela, kodwa uyilo olutsha lunokuba namanqanaba amaninzi kwaye lunokubandakanya izixhobo ezifanelekileyo zokukhusela intambo.
I-classic wire connection point is screw, kwaye ngamanye amaxesha i-washer isetyenziswa.Ucingo ludinga ukukrazula umsesane okanye i-U-shaped lug ekugqibeleni, uze uyifake kwaye uyiqinise phantsi kwesikrufu.Uyilo olulolunye lubandakanya uqhagamshelo lwe-screw lwebhloko yetheminali kwi-clamp yekheji, ukwenzela ukuba ucingo olungenanto okanye ucingo olune-cylindrical ferrule elula ekrweqe ekupheleni lufakwe ngokuthe ngqo kwi-clamp yekheji kwaye lulungiswe.
Uphuhliso lwakutsha nje yindawo yokudibanisa elayishwe entwasahlobo, ephelisa ngokupheleleyo izikrufu.Uyilo lwangaphambili lwalufuna ukusetyenziswa kwesixhobo sokutyhala intwasahlobo phantsi, eya kuvula indawo yokudibanisa ukuze kufakwe ucingo.Uyilo lwasentlakohlaza aluvumeli kuphela i-wiring ekhawulezayo kunamalungu ohlobo lwe-screw, kodwa uxinzelelo oluqhubekayo lwasentwasahlobo lukwachasa ukungcangcazela ngcono kuneetheminali zohlobo lwe-screw.
Uphuculo kolu yilo lwekheji yasentwasahlobo lubizwa ngokuba yi-push-in design (PID), evumela iingcingo eziqinileyo okanye iingcingo ezirhabaxayo ukuba zityhalelwe ngqo kwibhokisi yokuhlangana ngaphandle kwezixhobo.Kwiibhloko ze-terminal ye-PID, izixhobo ezilula zingasetyenziselwa ukukhulula iingcingo okanye ukufaka iingcingo ezingenanto.Uyilo olulayishwe entwasahlobo lunokunciphisa umsebenzi we-wiring ubuncinane ngama-50%.
Kukwakho nezinye izincedisi zetheminali eziqhelekileyo neziluncedo.I-plug-in bridging bar inokufakwa ngokukhawuleza, kwaye ii-terminals ezininzi zinokudibaniswa ngexesha, zibonelela ngendlela yokusabalalisa amandla adibeneyo.Imimiselo yokumakisha ibaluleke kakhulu ukubonelela ngokuchongwa okucacileyo kwi-terminal block conductor nganye, kwaye i-spacers ivumela abaqulunqi ukuba babonelele ngendlela ebalulekileyo yokwahlula ibhloko enye okanye ngaphezulu ukusuka komnye nomnye.Ezinye iibhloko ze-terminal zidibanisa i-fuse okanye ziqhawule isixhobo ngaphakathi kwebhloko ye-terminal, ngoko akukho malungu ongezelelweyo afunekayo ukwenza lo msebenzi.
Gcina amaqela esiphaluka
Kwiipaneli zokulawula kunye ne-automation, iisekethe zokuhambisa amandla (ukuba i-24 V DC okanye ukuya kwi-240 V AC) ngokuqhelekileyo ifuna iingcingo ezimbini.Usetyenziso lweSiqondiso, olufana noqhagamshelo kwizivamvo, luqhele ukuba lucingo olu-2 okanye olu-3, kwaye lunokufuna uqhagamshelo lwekhaka lesiginali ye-analog eyongezelelweyo.
Ewe kunjalo, zonke ezi ngcingo zinokufakelwa kwiitheminali ezininzi ezinomaleko omnye.Nangona kunjalo, ukupakisha konke ukudibaniswa kwesiphaluka esinikiweyo kwibhokisi ye-junction ye-multi-level ineenzuzo ezininzi zokuqala kunye neziqhubekayo (Umfanekiso 2).

2. Iibhloko ze-terminal ze-Dinkle DP zibonelela ngobungakanani obuhlukeneyo be-single-layer, i-two-layer kunye neemilo ezintathu.
Ii-conductor ezininzi ezenza isekethe, ngakumbi iimpawu ze-analog, zihlala zisebenza kwi-multi-conductor cable, kunokuba zibe ngabaqhubi abahlukeneyo.Ngenxa yokuba sele zidityanisiwe kwintambo enye, iyavakala ukuphelisa zonke ezi zikhonduki zihambelanayo kwi-terminal enemigangatho emininzi endaweni yeetheminali zomgangatho omnye.Iitheminali zamanqanaba amaninzi zinokukhawulezisa ukufakela, kwaye ngenxa yokuba zonke ii-conductor zisondelelene, abasebenzi banokucombulula iingxaki ngokulula (Umfanekiso 3)

3. Abaqulunqi banokukhetha iibhloko ze-terminal ezilungileyo kuzo zonke iinkalo zezicelo zabo.Iibhloko ze-terminal ezinamanqanaba amaninzi zinokugcina indawo enkulu yephaneli yolawulo kwaye zenze ufakelo kunye nokusombulula ingxaki kube lula ngakumbi.
Enye into engalunganga enokubakho yeetheminali ezinamanqanaba amaninzi kukuba zincinci kakhulu ukuba zisebenze kunye nabaqhubi abaninzi ababandakanyekayo.Ngethuba nje imilinganiselo yenyama ilinganisiwe kwaye imimiselo yokumakisha icacile, inzuzo yokuxinana kweengcingo eziphezulu iya kubekwa phambili.Kwitheminali yobukhulu obuyi-2.5mm 2 ubukhulu, ubukhulu betheminali iyonke yemigangatho emithathu bunokuba yi-5.1mm kuphela, kodwa iikondaktara ezi-6 zinokuyekiswa, oko konga i-66% yendawo yephaneli yolawulo exabisekileyo xa kuthelekiswa nokusebenzisa i-terminal enenqanaba elinye.
Uqhagamshelo olusezantsi okanye olunokubakho (PE) lolunye uqwalaselo.Xa isetyenziswe ngentambo yesiginali ekhuselweyo emibini engundoqo, i-terminal enemigangatho emithathu ine-conductor kwimigangatho emibini ephezulu kunye noqhagamshelo lwe-PE ezantsi, olulungele ukuhla kwentambo, kwaye iqinisekisa ukuba umaleko okhuselayo uqhagamshelwe I-DIN kaloliwe yomhlaba kunye nekhabhathi.Kwimeko yoxhulumaniso lomhlaba oluphezulu, ibhokisi ye-junction yezigaba ezimbini kunye nokudibanisa kwe-PE kuzo zonke iindawo kunokubonelela ngodibaniso oluninzi lomhlaba kwindawo encinci.
Uluphumelele uvavanyo
Abaqulunqi abasebenza ekuchazeni iibhloko ze-terminal baya kufumana ukuba kukulungele ukukhetha kuluhlu lweemveliso ezibonelela ngoluhlu olupheleleyo lobungakanani kunye noqwalaselo oluhlangabezana neemfuno zabo.Iibhloko zetheminali ye-Industrial kufuneka ngokubanzi zilinganiswe ukuya kuthi ga kwi-600 V kunye ne-82 A, kwaye zamkele iisayizi zocingo ukusuka kwi-20 AWG ukuya ku-4 AWG.Xa ibhloko ye-terminal isetyenziswa kwiqela lolawulo elidweliswe yi-UL, iya kuvunywa yi-UL.
I-enclosure ye-insulating kufuneka ibe yi-flame-retardant ukuhlangabezana nomgangatho we-UL 94 V0 kwaye inikeze ukuxhathisa ubushushu kuluhlu olubanzi lwe -40 ° C ukuya kwi-120 ° C (Umfanekiso 4).I-element conductive kufuneka yenziwe ngobhedu obomvu (umxholo wobhedu ngu-99.99%) we-conductivity engcono kunye nokunyuka kweqondo lokushisa elincinci.

4. I-terminal yokuvavanya iphezulu kunomgangatho woshishino wokuqinisekisa ukusebenza okuphezulu kunye nomgangatho ophezulu.
Umgangatho weemveliso ze-terminal uqinisekiswa ngumthengisi usebenzisa izibonelelo zelabhoratri eziphumelele uvavanyo lwe-UL kunye ne-VDE yobungqina kunye nesiqinisekiso.Itekhnoloji yocingo kunye neemveliso zokuphelisa kufuneka zivavanywe ngokungqongqo ngokuhambelana ne-UL 1059 kunye nemigangatho ye-IEC 60947-7.Olu vavanyo lungabandakanya ukubeka imveliso kwi-oven kwi-70 ° C ukuya kwi-105 ° C kwiiyure ze-7 ukuya kwiintsuku ze-7 ngokuxhomekeke kuvavanyo, kunye nokuqinisekisa ukuba ukufudumala akuyi kubangela ukuqhekeka, ukuthambisa, ukuguqulwa okanye ukunyibilika.Akufunekanga nje ukuba inkangeleko yomzimba igcinwe, kodwa neempawu zombane kufuneka zigcinwe.Olunye uthotho lovavanyo olubalulekileyo lusebenzisa iindidi ezahlukeneyo kunye nobude betyuwa yokutshiza ukumisela ukuxhathisa kokutya kwexesha elide kweemveliso.
Abanye abavelisi bade bagqitha imigangatho yoshishino kwaye badala iimvavanyo zemozulu ezikhawulezayo ukulinganisa iimeko ezinzima kunye nokuqinisekisa ubomi obude bemveliso.Bakhetha izinto zokusebenza eziphezulu ezifana neplastiki ye-PA66, kwaye baqokelele amava anzulu kwiinkqubo zokubumba iinaliti ezichanekileyo zokulawula zonke izinto eziguquguqukayo kunye nokuhlangabezana neemfuno zabasebenzisi bokugqibela kwiimveliso ezincinci ezigcina zonke iireyithingi.
Iibhloko zetheminali yombane yinxalenye esisiseko, kodwa zifanele ukuhoywa kuba zenza ujongano oluphambili lofakelo lwezixhobo zombane kunye neengcingo.Iitheminali zohlobo lwezikrufu eziqhelekileyo nazo zaziwa kakuhle.Itekhnoloji ephucukileyo efana ne-PID kunye neebhloko ze-terminal ezikumgangatho omninzi zenza ukuyila, ukuvelisa, kunye nezixhobo zokusebenza ngokukhawuleza nalula, ngelixa ugcina indawo enkulu yephaneli yolawulo enexabiso.