Iibhloko zeSpring Cage vs Screw Terminal — Ukumelana nokungcangcazela kwizicelo zikaloliwe

Xa Isikrufu Esikhululekileyo Sibiza Umqhubi Wesitimela i-€340,000 yoLungiso

Bendingicebisa umqhubi wesitimela wengingqi e-Central Europe xa bafumana uthotho lweempazamo ze-traction converter kwi-DMU yabo yengingqi. Uhlalutyo lwesizathu esiyintloko luthathe iiveki ezintathu kwaye lubandakanya ukukhutshelwa kweemodyuli ezintandathu ze-converter. Oku kwafunyanwayo kwakuthobisa kwaye kuqikelelwa ngokupheleleyo: iibhloko ze-screw terminal ezidibanisa ii-DC busbars zazikhululeke kancinci kancinci phantsi kokungcangcazela okuqhubekayo kwezixhobo ezingaphantsi komgangatho. Ngenxa yokuba uloliwe wawusebenza kwiindlela ezazineengxaki ezinkulu zendlela, isantya sokungcangcazela esiphambili sehla ngqo kuluhlu lwe-20–40 Hz apho amandla okubamba isiphelo sesitishi se-screw ehla ngokukhawuleza - kwaye emva kweenyanga ezili-18 zenkonzo, amandla okubamba kwisiphelo sesitishi ezininzi ehle ngaphezulu kwama-60%..

I-cascade yokusilela yayifundisa: i-terminal ekhululekileyo → ukwanda kokumelana noqhagamshelwano → ukufudumala okukufutshane → ukufudumala okushushu kumphezulu woqhagamshelwano → ukonakala kweplati yesilivere → ukuchithwa kwe-arcing → ukutshatyalaliswa kwemodyuli ye-converter. Umonakalo uwonke: €340,000 kwiimodyuli zokutshintshwa kunye nokuphazamiseka kwenkonzo yeeveki ezintandathu. Ukulungiswa kokuthintela - ukutshintsha zonke iibhloko zesiphelo se-screw ezingama-340 nge-converter nganye ngee-equivalents ze-spring cage - kubize i-€17,000 ngeyunithi nganye. Intloko yolondolozo yomqhubi yandixelela emva koko ukuba kufuneka babe neebhloko ze-spring cage ezichaziweyo kwimpahla yokuqala, kwaye wayechanekile.

Olu lwazi alulodwa. Kuyo yonke imboni yoololiwe kwihlabathi liphela, impikiswano phakathi kwee-spring cage kunye nee-screw terminal blocks zezicelo ezibuthathaka kukungcangcazela isonjululwe ngempumelelo ukuze kusetyenziswe i-spring cage kuzo zonke izakhiwo ezintsha ze-rolling stock. Imibutho yemigangatho ye-IEC kunye ne-EN iqaphele, kwaye uhlaziyo lwangoku lwe-EN 50155 lubonisa ukuvumelana okukhulayo kokuba itekhnoloji ye-spring cage lukhetho oluqhelekileyo lokunxibelelana kombane we-rolling stock. Kodwa ukuqonda isiseko sobugcisa sale mvumelwano - kunye nokwazi indlela yokuqinisekisa ukuba ii-spring cage terminal zenkampani yomthengisi ziyahlangabezana nemigangatho - kubalulekile kuyo nayiphi na injineli yokuthenga okanye umphathi wolondolozo osebenza neenkqubo zombane zikaloliwe.

Ukucacisa i-EN 50155:2021 — Oko Kufunwa Yimigangatho Ngokwenene

Umgangatho we-EN 50155:2021 we-European Railway Agency ("Izicelo zeSitimela — I-Rolling Stock — Izixhobo ze-elektroniki") yinkcazo elawulayo yazo zonke izixhobo zombane ezifakwe kwizithuthi zikaloliwe kwi-EU nakwiimarike ezininzi zokuthumela ngaphandle ezibhekisa kwimigangatho kaloliwe yaseYurophu. Ukuqonda lo mgangatho kuyimfuneko ukuze kuchazwe nasiphi na ibhloko yesiphelo sezicelo zikaloliwe.

Icandelo 9.3: Uvavanyo lokungcangcazela kunye nomothuko

I-EN 50155:2021 Icandelo 9.3 lichaza iimfuno zovavanyo lokungcangcazela ekufuneka zidlule kuzo zonke izixhobo ze-elektroniki — kuquka neebhloko zesiphelo — ukuze ziqinisekiswe ukuba zifakelwe isitokhwe esiqengqelekayo. Izalathiso ezisemgangathweni ze-IEC 60068-2-6 ("Uvavanyo Lokusingqongileyo — Icandelo 2-6: Uvavanyo — Uvavanyo lwe-Fc: Ukungcangcazela (iSinusoidal)") njengendlela yovavanyo ephambili, kodwa yongeza iimfuno ezithile zikaloliwe ezifuna kakhulu kunemigangatho yemizi-mveliso eqhelekileyo.

Iiparameter zovavanyo zihlulwe ngokwendawo yokufakela kwisithuthi, apho uDidi 1 lumele imeko-bume engqongqo (izixhobo ezifakwe ngqo emzimbeni wesithuthi, zityhileke kwi-spectrum epheleleyo yokungcangcazela evela kwi-bogie kunye nokusebenzisana kwethrekhi) kunye noDidi 3 lumele imeko-bume engeyongozi (izixhobo ezifakwe kwii-subframes ezizimeleyo zokungcangcazela).

Udidi	Indawo yoFakelo	Uluhlu lweeFrequency	Ukufuduka	Ukukhawulezisa	Ubude bexesha
Udidi 1	Ifakwe emzimbeni (ngaphantsi komgangatho, ukumiswa)	5–150 Hz	0.5 mm pp	10 m/s² (≈1g)	Ukutshaya/umgca we-axis ezili-10
Udidi 2	Ifakwe kwisakhelo (i-chassis, iikhabhathi)	5–150 Hz	0.35 mm pp	7 m/s² (≈0.7g)	Ukutshaya/umgca we-axis ezili-10
Udidi 3	Izinto zokufakelwa ezizimeleyo ngokungcangcazela	5–150 Hz	0.15 mm pp	3 m/s² (≈0.3g)	Ukutshaya/umgca we-axis ezili-10

Kuba i-EN 50155 ifuna uvavanyo kwii-axes ezintathu ezithe nkqo (ngokuthe nkqo, ecaleni, nangokwexesha elide), uvavanyo lokungcangcazela olupheleleyo lwebhloko yesiphelo luthetha imijikelo engama-30 yokutshiza iyonke. I-axis nganye ivavanywa ngokuzimeleyo, kwaye ibhloko yesiphelo akufuneki ibonise nawuphi na umonakalo womzimba, utshintsho lokumelana nokuqhagamshelana oludlula umda ochaziweyo, okanye ukonakala kokusebenza nangaliphi na ixesha ngexesha okanye emva kolandelelwano lovavanyo.

Iimfuneko zokulinganisa ukuxhathisa uqhagamshelwano

Enye yezona zinto zibalulekileyo zovavanyo lokungcangcazela lwe-EN 50155 — kwaye enye engayihoyiyo imigaqo emininzi yokuthengwa — yimfuneko yokujonga ukumelana nokungcangcazela ngexesha nasemva kovavanyo lokungcangcazela. Ngokwe-IEC 60068-2-6, ukumelana nokungcangcazela kufuneka kulinganiswe kumanqaku amane: ngaphambi kovavanyo, phakathi kovavanyo, ekupheleni kovavanyo, kunye nemizuzu engama-30 emva kovavanyo (ukuvumela ukuzinza kobushushu).

Ikhrayitheriya yokupasa yokumelana noqhagamshelwano ixhomekeke kuhlobo lwebhloko yesiphelo kunye nokusetyenziswa kwayo, kodwa kwizicelo zikaloliwe, isivumelwano soshishino kukuba ukunyuka kokumelana noqhagamshelwano emva kokungcangcazela okungaphezulu kwama-20% ukusuka kwisiseko sangaphambi kovavanyo kubonisa ukungaphumeleli. Ngenxa yokuba ii-terminals ze-spring cage zigcina uxinzelelo loqhagamshelwano ngamandla e-spring endaweni yokungqubana phakathi kwe-screw kunye ne-conductor, ngokusisiseko ziyamelana nokugqwala okubangela ukuwohloka kokumelana noqhagamshelwano kwii-terminals ze-screw phantsi kokungcangcazela..

Iimfuno ezongezelelweyo zeNdalo kwi-EN 50155

Ngaphaya kokungcangcazela, i-EN 50155:2021 ifuna iibhloko zesiphelo ukuze ziphumelele iseti epheleleyo yovavanyo lokusingqongileyo olusebenzisana neemfuno zokungcangcazela ngeendlela ezibalulekileyo. Uvavanyo lokufuma (IEC 60068-2-78, 93% RH kwi-40°C kangangeentsuku ezi-4) lubaluleke kakhulu kuba ukungena komswakama kunokukhawulezisa ukugqwala kwe-fretting kwi-screw terminals. Uvavanyo lwe-thermal cycling (ngesiqhelo -25°C ukuya kwi-+70°C, imijikelo emi-5) lunokubonisa imiba yokwanda eyahlukileyo kwindawo yesiphelo kunye nendlela yokunxibelelana.

Kwiibhloko zesiphelo ezenzelwe izixhobo zangaphandle kwizithuthi zikaloliwe (iifestile, ulawulo lweengcango, izinzwa zeebhuleki), uvavanyo lwe-salt mist (IEC 60068-2-52, inqanaba lesi-2 lobunzima) nalo luyimfuneko kwaye lunokuveza imiba yokugqwala kwindlela yentwasahlobo engayi kubonakala kuvavanyo lokungcangcazela lwelabhoratri olulawulwayo lodwa.

I-Mechanical Physics yesizathu sokuba ii-Screw Terminals zingaphumeleli phantsi kokungcangcazela

Ukuze siqonde ukuba kutheni iibhloko zesiphelo sekheji yentwasahlobo ziye zaba lukhetho oluqhelekileyo lwezicelo zikaloliwe, kufuneka sihlolisise umahluko osisiseko woomatshini phakathi kweetekhnoloji ezimbini zoqhagamshelo. Indlela yokusilela kwee-screw terminals phantsi kokungcangcazela ayicacanga - yinkqubo ebonakalayo eqikelelwayo, ephinda ivele kwaye ichazwe kakuhle kwiincwadi kwaye iqinisekiswe ngamava asentsimini.

Indlela Yokugqwala Eqhubekayo

Xa i-terminal yesikrufu iqinisiwe, idala amandla okubamba phakathi kwentloko yesikrufu (okanye ipleyiti yoxinzelelo) kunye nomqhubi. La mandla agcinwa kukungqubana kwiindawo zokunxibelelana. Phantsi kokungcangcazela, iintshukumo ezincinci ze-1–10 micrometers zenzeka kwezi ndawo zokunxibelelana, nokuba amandla okubamba e-macroscopic abonakala engatshintshanga. Ngenxa yokuba iindawo ezidityanisiweyo ziphantsi koxinzelelo oluphezulu lokudibana, ezi ntshukumo zincinci zibangela ukurhawuzelela — inkqubo yokuguguleka esusa izinto kuzo zombini iindawo kwaye ivelise amasuntswana e-oxide akhuselayo kwindawo ejonge kuyo..

Njengoko ukuxinana kuqhubeka, indawo yoqhagamshelwano yokwenyani iyancipha, nto leyo eyonyusa uxinano lwangoku kwiindawo ezisele zoqhagamshelwano. Oku kufudumeza okukufutshane kukhawulezisa inkqubo ye-oxidation, kudala i-feedback loop eyakhayo ekhokelela ekunyukeni okukhulu kokumelana noqhagamshelwano. Kwiziko lemizi-mveliso eligcinwe kakuhle elinamaxesha okuhlolwa rhoqo, ingcali iya kubona ukwanda kokumelana noqhagamshelwano ngexesha lophando lwemifanekiso yobushushu rhoqo kwaye iphinde iguqule ii-terminals ngaphambi kokuba zingasebenzi kakuhle. Kwisicelo sikaloliwe esinamawaka ee-terminals kwi-fleet, olu hlobo lokujonga umntu ngamnye alunakwenzeka.

Enye indlela ye-Spring Cage

Iibhloko zesiphelo sekheyiji yentwasahlobo zithatha indawo yendlela yokubamba izikrufu ngomnxibelelwano ogcwele intwasahlobo. Xa umqhubi efakwa kwisiphelo sekheyiji yentwasahlobo, amandla entwasahlobo agcina amandla aqhelekileyo rhoqo kumqhubi, nto leyo eyenza ujongano lonxibelelwano olungenagesi. Umahluko ophambili kwii-terminal zeskrufu kukuba indlela yentwasahlobo iyaqhubeka nokuziqhelanisa ne-thermal cycling kunye ne-micro-movement ngokusebenzisa amandla okubuyisela ahambelana nokufuduka - hayi amandla okungqubana azinzileyo.

Xa isiphelo sekheyiji yentwasahlobo singcangcazela, intwasahlobo ifunxa intshukumo ehambelanayo kwindawo yoqhagamshelwano, igcina uxinzelelo oluhambelanayo loqhagamshelwano kuyo yonke isiganeko sokungcangcazela. Izinto zentwasahlobo (ezihlala ziqina njengentsimbi engagqwaliyo okanye i-nickel-titanium alloy yokusetyenziswa kobushushu obuphezulu) zikhethwa ukuze zikwazi ukumelana nokudinwa, kwaye i-geometry yentwasahlobo yenzelwe ukuqinisekisa ukuba amandla oqhagamshelwano ahlala ngaphakathi kwemilinganiselo ubuncinane kwimijikelo yokungcangcazela eyi-100,000 - ngaphaya koko kufunwa lulandelelwano lovavanyo lwe-EN 50155.

"Inzuzo esisiseko yobuchwepheshe be-spring cage kwizicelo zikaloliwe asikuko nakuphi na umlinganiselo wokusebenza omnye - kukususa imo yokusilela. Xa i-screw terminal isilela, iyasilela ngokuthe ngcembe nangokungalindelekiyo. Xa i-spring cage terminal isilela, ihlala isilela ngoko nangoko nangokubonakalayo. Iindlela zokusilela okuqhubekayo kwizicelo zikaloliwe ezibalulekileyo kukhuseleko ziyingozi kakhulu kunezo zingalindelekanga."

Ukuhamba ngebhayisikile ngobushushu: Iqabane Elithuleyo Lomonakalo Wokungcangcazela

Kwimisebenzi kaloliwe, ukungcangcazela akufane kusebenze kodwa. Indawo eshushu kwisithuthi sikaloliwe inamandla kakhulu: amaqondo obushushu aphakathi aqala kwi -40°C kwimisebenzi yasebusika ukuya kwi +70°C elangeni ngqo kwizixhobo ezifakwe eluphahleni, kwaye i-thermal gradients kwi-earphone enye yezixhobo ingadlula i-30°C. Oku kuthetha ukuba ibhloko nganye yesiphelo kwisithuthi sikaloliwe iphantsi komjikelo wobushushu ngaxeshanye kunye nokungcangcazela koomatshini - imeko yoxinzelelo oludibeneyo olukhawulezisa ukugqwala okukrakra kunye nokudinwa kwentwasahlobo.

Unxibelelwano phakathi kokujikeleza kobushushu kunye nokungcangcazela lunzima kakhulu kwiiterminal zeskrubu. Xa ibhloko yesiphelo ishushu ngenxa yokuhamba kwamandla ombane ize iphole emoyeni wasebusuku, ukwanda kobushushu okwahlukileyo phakathi komzimba wesiphelo sentsimbi (i-coefficient yokwandiswa kobushushu: 19 × 10⁻⁶/°C) kunye neskrubu sentsimbi (11–13 × 10⁻⁶/°C) kudala iintshukumo ezincinci ezongezelelweyo kwi-interface ye-clamping. Ngenxa yokuba ezi ziphumo zokujikeleza ngobushushu ziyaqokelelana kwaye azinakuguqulwa, i-screw terminal esebenze iminyaka emi-5 kwindawo kaloliwe ejikeleza ngobushushu iya kuba namandla okunciphisa kakhulu xa ithelekiswa ne-terminal efanayo ngexesha lokufakwa kwayo — nokuba iphindwe yatshintshwa..

Izitishi zeekheyiji zasentwasahlobo azikhuselekanga kwimiphumo yokujikeleza kobushushu, kodwa indlela yentwasahlobo yenzelwe ukwamkela ukwanda kobushushu ngaphandle kokudlulisela uxinzelelo kwindawo yokunxibelelana. Intwasahlobo idla ngokwahlulwa emzimbeni wesiphelo esiphambili nge-ceramic okanye i-polymer insulator, enciphisa ukudibana kobushushu kwaye ivumela intwasahlobo ukuba igcine amandla ayo ayilwe ngaphakathi koluhlu lobushushu oluphakathi kwe--40°C ukuya kwi-+120°C.

Indlela Yokuhlola Isiqinisekiso Sikaloliwe Somthengisi Weebhloko Zesiphelo

Emva kokuphonononga amakhulu eedatha ze-terminal block kunye neengxelo zovavanyo zabathengi bezitimela, ndiye ndaphuhlisa indlela ecwangcisiweyo yokuphicothwa kwababoneleli endiyicebisayo kubo bonke oonjineli bokuthenga. Eyona mpazamo ixhaphakileyo endiyibonayo kukwamkela isibhengezo somthengisi sokuhambelana nomthetho njengobungqina bokuthobela umthetho. Kwikhonkco lokubonelela ngololiwe lokwenyani, ukuqinisekiswa komntu wesithathu akunyanzelekanga.

Inyathelo 1: Qinisekisa ukuVunywa kweLebhu yoVavanyo

Ingxelo yovavanyo kufuneka ikhutshwe yilabhoratri evunyiweyo yi-ISO/IEC 17025 yomgangatho othile wovavanyo okhankanyiweyo. Iilabhoratri ezinkulu ezivunyiweyo zovavanyo lwesitimela ziquka i-SGS (Geneva), i-Bureau Veritas (Paris), i-TÜV Rheinland (Cologne), kunye ne-Ricardo Rail (UK). Ingxelo yovavanyo lwangaphakathi lomthengisi ayibobungqina obamkelekileyo bokuthobela i-EN 50155 — ingabonisa ukuba umthengisi uyivavanye imveliso, kodwa ayinakubonisa ukuba uvavanyo lwenziwe kumgangatho ofunekayo okanye lutolikwe ngokuchanekileyo.

Inyathelo lesi-2: Jonga ukuchongwa kweSpecimen yoVavanyo

Ingxelo yovavanyo kufuneka ibandakanye ukuchongwa okucacileyo kwesampuli yovavanyo — inombolo yenxalenye echanekileyo, inombolo yebhetshi, kunye nekhowudi yomhla wokwenziwa kwebhloko yesiphelo evavanyiweyo. Ingxelo yovavanyo ebhekisa "kwiisampulu ezimeleyo" ngaphandle kokuchongwa okuthe ngqo ayanelanga. Isampuli kufuneka ibe yeyokwenziwa kwenkqubo efanayo kunye nezinto ezifana nemveliso ethengwayo. Ukuba umthengisi akanakubonelela ngengxelo yovavanyo yenombolo yenxalenye ethe ngqo ecatshulweyo, le yimpawu ebomvu efuna uphando olongezelelweyo.

Inyathelo lesi-3: Qinisekisa iiParamitha zoVavanyo eziSebenzisiweyo

Hlaziya ngononophelo itheyibhile yeeparameter zovavanyo zengxelo yovavanyo. Ukuze kuthotyelwe i-EN 50155, ezi parameter zilandelayo kufuneka zichazwe: uluhlu lwefrikhwensi (ngesiqhelo yi-5–150 Hz kwiCandelo 1), i-displacement amplitude (0.5 mm pp kwiCandelo 1), i-acceleration amplitude (10 m/s² kwiCandelo 1), inani lee-axes ezivavanyiweyo (ezintathu: ezithe nkqo, ezisemacaleni, ezinde), inani lemijikelo yokushenxa nge-axis nganye (10), kunye nemigangatho yokwamkelwa yotshintsho lokumelana noqhagamshelwano (ngesiqhelo yi-

Umahluko oqhelekileyo endiwufumanayo kwiingxelo zovavanyo lomthengisi kukuba uvavanyo lwenziwe kwiiparameter zoDidi 2 xa iphepha ledatha lisithi ukuthobela uDidi 1 kuyalandelwa. Oku kukungachaneki okukhulu. Ukuba isicelo sakho sifuna ukusebenza koDidi 1, kufuneka uqinisekise ukuba uvavanyo lwenziwe kwiiparameter zoDidi 1 - kungekuphela nje ukuba umthengisi unengxelo yovavanyo ebhalwe "EN 50155."

Inyathelo lesi-4: Qinisekisa idatha yokumelana noqhagamshelwano

Buza ngemilinganiselo yokwenyani yokumelana nokuchukumisa kuvavanyo lokungcangcazela — kungekuphela nje ingxelo yokuba isiphelo siphumelele uvavanyo. Ingxelo kufuneka ibandakanye imilinganiselo yangaphambi kovavanyo, phakathi kovavanyo, uvavanyo lokugqibela, kunye nemilinganiselo yasemva kokuzinza kwi-axis nganye evavanyiweyo. Khangela iindlela ezisetyenziswayo: ukuba ukumelana nokuchukumisa kuyanda ngokuthe ngcembe kwimijikelo yovavanyo kuyo nayiphi na i-axis, oku kubonisa ingxaki evelayo yokubola enokuvela njengokusilela kwentsimi kwiminyaka emi-2-3 yokusebenza.

Kwiibhloko zesiphelo sekheyiji yasentwasahlobo, umahluko wokumelana noqhagamshelwano kufuneka ube mncinci — ngesiqhelo utshintshe ngaphantsi kwe-0.5 mΩ ukusuka kwisiseko ukuya kwi-post-uzinzo, kwaye kungabikho ukwanda okuqhubekayo ngexesha lovavanyo. Kwi-J-Guang, uthotho lwethu lweebhloko zesiphelo sendlela ye-PCT-211 DIN rail push-in lubonisa uzinzo lokumelana noqhagamshelwano ngaphakathi kwe-0.2 mΩ kuzo zonke ii-axes ezintathu zovavanyo lwe-EN 50155, olu luphawu endilusebenzisayo xa ndivavanya nayiphi na ibhloko yesiphelo sendlela kwizicelo zesitimela.

Inyathelo lesi-5: Qinisekisa ukuba iNkqubo yoMveliso iyakwazi ukuSebenza

Ngokuthengwa komthamo (ngaphezulu kwe-10,000 iibhloko zesiphelo nge-odolo nganye), ndicebisa ukuba ndicele ingxelo yeManufacturing Process Capability njengenxalenye yesiqinisekiso somthengisi. Amandla entwasahlobo e-spring cage terminal block luphawu olubalulekileyo olufanele lulawulwe ngaphakathi kokunyamezelana okuqinileyo. Cela umthengisi ngedatha yakhe yokulinganisa amandla entwasahlobo kumgca wemveliso - amandla entwasahlobo aphakathi kufuneka abe ngaphakathi kwe-±15% yexabiso eliqhelekileyo, kunye ne-Cpk (isalathisi sobuchule benkqubo) ubuncinane i-1.33 kwizicelo zokhuseleko ezibalulekileyo.

Iikhrayitheriya zokukhetha eziKhethekileyo zeSicelo sikaloliwe ngaphaya kokungcangcazela

Ukumelana nokungcangcazela yeyona nto iphambili eyahlula phakathi kwe-spring cage kunye nee-screw terminal blocks, kodwa usetyenziso lwesitimela luzisa ezinye iindlela zokukhetha ezinokuchaphazela ukhetho olufanelekileyo lofakelo oluthile.

Ukukhuselwa koMlilo kunye nobuTyhefu boMsi

I-EN 45545-2 ("Izicelo zeSitimela - Ukhuseleko loMlilo kwiZithuthi zikaloliwe - Icandelo 2: Iimfuno kunye nokuziphatha kwezinto") zihlela izixhobo zombane ngokwendlela ezisebenza ngayo emlilweni. Iibhloko zesiphelo ezisetyenziswa kwiindawo ezinokufikelela kwabakhweli (iikhabhathi zangaphakathi, idesika yomqhubi) kufuneka zihlangabezane neemfuno zokhuseleko lomlilo ezifuna kakhulu - ngokwesiqhelo i-HL2 okanye i-HL3 kuxhomekeke kuhlobo lwesithuthi kunye nendlela esisebenza ngayo.

Uninzi lweebhloko zesiphelo sekheji yentwasahlobo yorhwebo zisebenzisa izixhobo zokuhlala ze-polyamide (PA) okanye ze-polycarbonate (PC), ezifikelela kwi-UL94 V-0 yokungatshayi ilangabi. Nangona kunjalo, ayizizo zonke ezi zinto ezihlangabezana neemfuno zetyhefu yomsi ze-EN 45545-2, ezifuna uvavanyo ngokwe-ISO 5659-2 (ubuninzi bomsi) kunye ne-EN ISO 5659-3 (ukukhutshwa kwegesi enobuthi). Kwizicelo zangaphakathi zesitimela, chaza iibhloko zesiphelo ezinezixhobo zokuhlala eziqinisekisiweyo kwi-EN 45545-2 HL2 nangaphezulu, kwaye uqinisekise isiqinisekiso ngengxelo yovavanyo yokwenyani endaweni yebango ledatha.

Uvavanyo lweVoltage kunye nomgama weCreepage

Iinkqubo zombane zikaloliwe zisebenza kwiindlela ezahlukeneyo zombane, ukusuka kwiisekethe zolawulo ze-VDC ezingama-24 ukuya kwiibhasi zamandla okudonsa ze-VDC ezingama-3,000. Iibhloko zesiphelo sala manqanaba ahlukeneyo ombane kufuneka zibe nemigama eyaneleyo yokwela (indlela emfutshane phakathi kwamacandelo amabini okuqhuba umbane kumphezulu wezinto ezikhuselayo) ukuthintela ukungaphumeleli kokulandelela. Ngokutsho kwe-IEC 60664-1, umgama omncinci wokwela kwisekethe ye-VDC engama-24 kwindawo yongcoliseko lweDigri yesi-2 yi-0.8 mm, ngelixa kwisekethe ye-VDC engama-3,000, umgama omncinci wokwela yi-18 mm.

Iibhloko ezininzi zesiphelo sekheji yentwasahlobo ezenzelwe ukusetyenziswa kwe-industrial automation zilinganiswe kwii-voltage ezifikelela kwi-800 V, nto leyo eyaneleyo kwiinkqubo ezininzi zamandla ancedisayo okutsala kodwa ayanelanga ukuqhagamshela i-busbar yokutsala ngokuthe ngqo. Ngenxa yokuba umgama ohambahambayo ngumsebenzi we-voltage kunye ne-pollution, kufuneka uchaze iimeko ezilindelekileyo zendalo (ngaphakathi, ngaphandle, ukuvezwa luthuli oluqhubayo okanye ukufuma) ukongeza kwi-voltage yenkqubo xa ukhetha iibhloko zesiphelo..

Ubungakanani beNtambo kunye nendlela yokuphelisa ukuhambelana

Izithuthi zikaloliwe zisebenzisa uluhlu olubanzi lweengcingo, ukusuka kwi-sensor ye-0.5 mm² ukuya kwintambo yamandla ye-240 mm². Iqonga le-terminal block eligubungela uluhlu olupheleleyo lweengcingo kwisicelo sakho lenza lula ulawulo lwezinto ezikhoyo kwaye linciphisa umngcipheko weempazamo zengcingo ngexesha lokufakwa nokugcinwa. Ibhloko yesiphelo sendlela yokutyhala uloliwe ye-PCT-211 DIN yamkela ubungakanani beengcingo ukusuka kwi-0.5 mm² ukuya kwi-16 mm² ngobukhulu bendlu enye, egubungela malunga ne-85% yobukhulu beengcingo ezisetyenziswa kwiikhabhathi zombane zesitimela eziqhelekileyo.

Uluhlu Lokuhlola Ukuthengwa: Oko Umthengi Wesitimela Afanele Akufune

Ngaphambi kokuba ukhuphe umyalelo wokuthenga iibhloko zesiphelo sendlela kwizicelo zikaloliwe, ezi zinto zilandelayo kufuneka ziqinisekiswe kwaye zibhalwe phantsi. Olu luhlu lokuhlola lusebenza kuzo zombini iintlobo ze-spring cage kunye ne-screw terminals, nangona ulindelo lokusebenza lwahlukile kakhulu phakathi kwezo teknoloji zimbini.

1. Ingxelo yovavanyo lwe-EN 50155 yomntu wesithathu: Ikhutshwe yilabhoratri evunyiweyo ye-ISO/IEC 17025, egubungela inombolo yecandelo elithile kunye nohlaziyo oluthengwayo, kunye nedatha epheleleyo yokumelana noqhagamshelwano kuzo zonke ii-axes zovavanyo ezintathu.
2. I-EN 45545-2 isiqinisekiso somlilo: Kwizicelo zangaphakathi, izinto zokwakha kufuneka zibe nesatifikethi esisemthethweni se-HL2 okanye se-HL3 esivela kwilabhoratri evunyiweyo. Qinisekisa inombolo yesatifikethi ngokuchasene nenombolo yenxalenye yokwenyani — izatifikethi zezinto eziqhelekileyo azamkelekanga kwisatifikethi semveliso yokugqibela.
3. I-Voltage kunye novavanyo lwangoku: I-voltage elinganisiweyo kufuneka ilingane okanye idlule i-voltage ephezulu yenkqubo kunye nomda wokhuseleko we-20%. I-current elinganisiweyo kufuneka ilingane okanye idlule i-continuous current ephezulu kwisicelo, ibandakanya naluphi na uguquko olufunekayo kumaqondo obushushu aphezulu.
4. Ukuhambelana kobungakanani bentambo: Qinisekisa ukuba ibhloko yesiphelo iyamkela uluhlu olupheleleyo lweengcingo ezichazwe kuyilo lwakho lweharness, kuquka nee-conductors ze-fine-strand (Class 5 kunye neClass 6) ezifuna iindlela ezithile zokuphelisa ukuqinisekisa uqhagamshelo olungenagesi.
5. Idatha yemveliso yamandla entwasahlobo: Kwibhloko zesiphelo sekheji yentwasahlobo, cela idatha yeCpk kwiirekhodi zolawulo lwenkqubo yokuvelisa yomthengisi. I-Cpk ye-
6. Idatha yokumelana nobushushu: Ibhloko yesiphelo kufuneka ilinganiswe ngokweqondo lobushushu obuphezulu kwindawo esetyenziswayo, kunye nokunyuka kobushushu obuvela kumsinga wangoku. Kwizixhobo ezingaphantsi komgangatho ezinamaqondo obushushu afikelela kwi-70°C, chaza iibhloko zesiphelo ezilinganiswe ngokwe-100°C ubuncinci.
7. Ukuhambelana kwezixhobo: Qinisekisa ukuba izixhobo ezifunekayo — ii-jumper bars, ii-marker strips, ii-end brackets, ii-test sockets — ziyafumaneka kumthengisi omnye kwaye ziqinisekisiwe ukuba ziyahambelana neqonga le-terminal block elichaziweyo. Ukuxuba izixhobo ezivela kubavelisi abahlukeneyo kunokuphelisa isiqinisekiso.

Kutheni i-Spring Cage ifanele ibe lukhetho lwakho oluzenzekelayo kwiibhloko zesiphelo sesitimela

Emva kweminyaka elishumi elinesihlanu ndichaza iibhloko zesiphelo sendlela kwizicelo zikaloliwe — kwaye ndiphonononga ukusilela okuninzi kwentsimi kubasebenzi abaninzi kunye neentlobo zezithuthi — ingcebiso yam ayicacanga: iibhloko zesiphelo sendlela ye-spring cage kufuneka zibe lukhetho oluqhelekileyo kuzo zonke ii-commercial electrical facilities ezintsha, kunye nee-screw terminals eziqwalaselwa kuphela kwiimeko ezikhethekileyo apho imiqathango ethile yenza i-spring cage ingafanelekanga.

Ingxoxo yokusebenza kakuhle iyamangalisa yodwa. Xa ndibala iindleko zizonke zobunini bekhabhinethi yombane yesitimela eqhelekileyo enee-terminal connections ezingama-500 kwiminyaka eli-15 yobomi bemoto, umahluko weendleko zokugcina phakathi kwe-spring cage kunye ne-screw terminals zodwa - ezibalelwa kuhlolo lwe-torque lwekota, uphando lwe-thermal imaging, kunye neendleko zomsebenzi zokuphinda utshintshwe - zihlala zidlula iprimiyamu yeendleko zokuthenga. Yongeza iindleko zomngcipheko zokusilela kwe-converter okubangelwa yi-terminal ekhululekileyo, kwaye imeko ye-spring cage iba nzima kakhulu.

Kodwa ngaphaya kwetyala lezemali, kukho ityala lokhuseleko endilifumana linomtsalane ngakumbi. Izithuthi zikaloliwe zisebenza kwiindawo apho ukungasebenzi kombane kunokuba nemiphumo emibi kakhulu - kungekuphela nje kwizixhobo, kodwa nakubakhweli kunye nabasebenzi. Imo yokusilela okuqhubekayo efana nokuphumla kwesiphelo se-screw, enika imiqondiso yesilumkiso enokufunyanwa ngokuhlolwa rhoqo, iyakwazi ukulawuleka kwinqwelo-moya egcinwe kakuhle. Kodwa xa amaxesha okuhlola engafakwanga, okanye xa indlela yokuhlola ingabandakanyi umfanekiso wobushushu woqhagamshelo lwamandla aphezulu, imiqondiso yesilumkiso ayifakwanga de kube ukungasebenzi. Ngenxa yokuba ii-terminals ze-spring cage ziyasilela ngokubonakalayo kwaye kwangoko phantsi kweemeko ezinokubangela ukuba ii-terminals ze-screw zisilele ngokuqhubekayo nangokungalindelekiyo, imo yokusilela kwe-spring cage ikhuselekile ngokwemvelo kwizicelo zikaloliwe..

Iibhloko zesitishi sikaloliwe ze-PCT-211 ze-J-Guang ze-spring cage DIN zibekwe kwiinkqubo zezithuthi zikaloliwe ezingaphezu kwama-30 kwihlabathi liphela, kunye nenkonzo yasentsimini eqokelelweyo edlula iiyure zokusebenza ezi-8 zezigidi. Idatha yethu yovavanyo lwe-EN 50155, efumaneka kubo bonke iinjineli zokuthenga xa iceliwe, ibonisa uzinzo oluhambelanayo lokumelana noqhagamshelwano kuzo zonke ii-axes zovavanyo ezintathu kwiiparameter zokungcangcazela zeCandelo 1. Ukuba uchaza iibhloko zesitishi seprojekthi entsha kaloliwe okanye uvavanya ukuphuculwa kweenqwelo-moya ezikhoyo, ndiyakwamkela ithuba lokuxoxa ngeemfuno zakho ezithile.