Izintambo ze-EPDM: inketho ekahle-yokuxhuma kwamandla avumelana nezimo okuphezulu

Ezinkambini zanamuhla zezimboni, ezezimoto, zasolwandle, nezintsha zamandla, izintambo zenza okungaphezu nje kokuthwala amandla-kufanele zibambelele ngokuthembekile lapho izinto ziba nzima, noma ngabe lokho ukushisa okudlulele, amakhaza, ukudlidliza, isifutho sikasawoti, noma ukugobeka njalo. Konke lokho kuyasizaIkhebula le-EPDMngokusebenza, hamba-ekukhetheni lapho i-PVC evamile noma ezinye izinto ezifakwayo zingase ziqhekeke, zibe lukhuni, noma zehluleke ngaphambi kwesikhathi ekusetheni okufunwa kakhulu njengamakhompathimenti enjini, izintambo zezikebhe, ukufakwa komoya/nelanga, noma imishini esindayo. Namuhla, sizoxoxa ngezinzuzo eziyinhloko zezintambo ze-EPDM kanye nemikhiqizo emibili ye-UL ejwayelekile ekhiqizwa efekthri yethu-UL3311 ne-UL3279.

Izinzuzo eziyingqayizivele zezinto zokufakelwa kwe-EPDM

I-EPDM iyirabha yokwenziwa ebamba indawo embonini yocingo nekhebula ngenxa yezakhiwo zayo ezinhle kakhulu zomzimba namakhemikhali. Uma kuqhathaniswa nezinto zokwakha ze-PVC zendabuko noma ze-XLPE, i-EPDM ihamba phambili kulezi zici ezilandelayo:

• Ibanga lokushisa elibanzi: Ingasebenza ngokuzinzile ukusuka -ku-50℃kuya ku-+90℃/105℃, futhi ingamelana namazinga okushisa aphakeme isikhathi esifushane. Lokhu kuyenza ifaneleke kakhulu ukuqalisa imishini ezindaweni ezibandayo ebusika, noma kumamotho nemishini yokushisela ezindaweni ezinokushisa okuphezulu.

• Ukumelana nesimo sezulu esihle kakhulu kanye -nezakhiwo zokulwa nokuguga: Inokumelana okuqine kakhulu emisebeni ye-ultraviolet, i-ozone, nokuguga komkhathi, futhi ayijwayele ukuqhekeka noma ibe yimpushana ngisho nangemva{1}}ukuchayeka isikhathi eside ngaphandle.

• Ukuguquguquka okuhle nokumelana nokugoba: Ihlala inwebeka ngisho emazingeni okushisa aphansi, iyenze ifanelekele izinhlelo zokusebenza ezidinga ukunyakaza okuvamisile noma ukudlidliza, njengezintambo zebhethri namaketango ezintambo zamarobhothi ezimbonini.

• Ukusebenza kukagesi okuzinzile: amandla aphezulu okuhlukanisa kanye ne-dielectric engaguquki, ilungele ukuhanjiswa kwamandla kagesi aphakathi nendawo naphansi.

• Izici: IningiIkhebula le-EPDMs ithobelana nezimfuneko ze-RoHS, futhi{0}}izinguqulo ze-halogen ephansi{1}}yamahhala ziya ngokuya zivame kakhulu.

Yiqiniso, i-EPDM ayiyona i-panacea. Ayizweli kancane kuma-hydrocarbons njengowoyela nophethiloli, ngakho ifaneleka kakhulu{1}}ezindaweni ezingacwiliswa uwoyela noma ukuthintana nowoyela ngezikhathi ezithile.

I-UL3311: Ibhethri ye-Classic 90℃kanye nama-Motor lead

I-UL3311idume kakhulu i-EPDM insulated single-standard core flexible cable standard emakethe yaseNyakatho Melika, ikakhulukazi esetshenziselwa izintambo zangaphakathi, uxhumo lwebhethri, kanye nemikhondo yezimoto.

Ukucaciswa kwayo okujwayelekile kuhlanganisa:

• Ikhondiki: Ikilasi K noma Ikilasi M eliboshwe ngethusi elingenalutho noma ithini-ithusi elipulitiwe (30AWG ucingo olucushwe kahle, ukuguquguquka okuphezulu)

• I-Insulation: Irabha ye-EPDM ye-Thermosetting, ngokuvamile enesendlalelo sokukhishwa kwephepha.

• I-voltage elinganiselwe: 600V

• Isilinganiso sezinga lokushisa: -50℃~ +90 degree

• I-Flame Retadancy: Iphumelela ukuhlolwa kwe-VW-1 noma i-FT1

• Izinhlelo zokusebenza ezijwayelekile: izintambo zebhethri zasolwandle, izintambo zokuxhunywa kwesistimu ye-UPS, izinsimbi zezimboni, izixhumi zebhethri ye-forklift/imoto kagesi, izintambo zamandla emishini esindayo

Isibonelo esisebenzayo: Thatha ikhebuli engu-4/0 AWG (leyo cishe engu-107 mm²) elinganiselwe ngaphansi kwe-UL3311-ivame kakhulu ekuxhumekeni kwebha yebhasi kuma-inverter amakhulu noma ukusetha isitoreji samandla. Emazingeni okushisa angama-90℃conductor, ingakwazi ukuphatha ngokuphepha ngaphezu kuka-400A. Ukuwina kwangempela ukuthi kuhlala kuvumelana nezimo kanjani ngenxa yalokho kulenga okuhle (ngokuvamile imicu engu-2109 yocingo lwe-30 AWG), ukuze ukwazi ukuyihambisa ezindaweni eziqinile ngaphandle kokuhlupheka okukhulu ngesikhathi sokufaka.

I-UL3279: Ukukhetha Okuthuthukisiwe kwe-105℃High Temperature Resistance

Uma indawo yohlelo lwakho lokusebenza inamazinga okushisa aphakeme noma idinga-ukusebenza kwesikhathi eside ngaphansi kwemithwalo yokushisa ephezulu, i-UL3279 iyindlela engcono yokuthuthukisa. Isakhiwo sayo sifana kakhulu ne-UL3311 (futhi ikhebula le-EPDM, i-600V, i-conductor yethusi enogqinsi), kodwa izinga lokushisa liyenyuka lafika ku-105 degree.

Umehluko obalulekile:

• Ibanga lokushisa: -50℃~ +105℃(izinga lokushisa eliqhubekayo liyi-15℃ngaphezuI-UL3311)

• Izimo ezisebenzayo: Izinhlelo zokusebenza ezidinga ukuzinza okuphezulu kwe-thermal, okufana nokokusebenza kwemboni eduze nemithombo yokushisa, imikhondo yemishini yokushisela, kanye{0}}noxhumo lwebhethri olunamandla aphezulu ezimotweni ezithile zamandla amasha.

• Umthamo wamanje wokuthwala: Ngaphansi-kwesigaba esifanayo,I-UL3279ivumela i-current ephezulu ukuthi idlule (ngenxa yomkhawulo omkhulu wokukhuphuka kwezinga lokushisa).

Izintambo eziningi zebhethri-njenge-2/0 AWG noma 4/0 AWG ozibona ngaso sonke isikhathi-zifika nakho kokubili i-UL3311 ne-UL3279 ephrintwe khona kanye ejazini. Lokho ngokuvamile okushoyo ekusebenzeni ukuthi ikhebuli inhle kufika ku-90℃uma ulandela imithetho ye-UL3311, futhi ingakwazi ukusingatha kufika ku-105℃uma uhamba nge-UL3279. Eqinisweni,{13}}ukusetshenziswa komhlaba, nokho, abantu abaningi bathembela ekuyiphatheni njenge-UL3279{15}{15}ukusethwa kwekhebula le-hot ehlanganisa ama-hot spots noma nini lapho injini ivala khona ama-welder, noma osinki bokushisa be-inverter) noma lezo{18}}izixhumanisi zamandla aphezulu kuzinto zamandla amasha njengamaphakethe ebhethri e-EV nama-solar inverter. I-headroom eyengeziwe engu-15℃ivele ikunike ukuthula kwengqondo okwengeziwe kulezo zindawo ezishisa kakhulu, ezisinda kakhulu.

Ukuqhathaniswa kwezimo zohlelo lokusebenza kwezicaciso ezimbili

Amathiphu okuthenga nokusebenzisa

1.Qinisekisa izimfuneko zezinga lokushisa: Uma-izinga lokushisa lokusebenza lesikhathi eside liseduze noma lidlula u-90℃, i-UL3279 iyakhethwa.

2.Naka i-conductor stranding: I-Class K (izintambo ezingu-30 zocingo oluhle) inokuguquguquka okungcono kakhulu futhi ifanele ukugoba njalo.

3.Umbala kanye nokumaka: Izintambo zebhethri ngokuvamile zisebenzisa okubomvu nokumnyama ukuze kuhlukanise amatheminali avumayo noma anegethivu. Qaphela ukuthi ingabe i-diameter yangaphandle iwafanele amatheminali akho.

4.Ukuphelela kwesitifiketi: Imikhiqizo esemthethweni kufanele ibe nenombolo yefayela le-UL (E-ifayela), elingaqinisekiswa ku-inthanethi. Isibonelo, imboni yethu i-E352430.

5.Amanothi okufaka: NakubaIkhebula le-EPDMazigugi-ziyamelana, gwema ukucwiliswa isikhathi eside emafutheni; kunconywa ukusebenzisa amathuluzi akhethekile lapho ukhumula izintambo ukuze ugweme ukulimaza ukufakwa.

Kafushane,Ikhebula le-EPDMzigqama ngokuqinile kwazo zonke-zisebenza ngaphansi kwezimo ezinzima, okuzenza zikwazi{1}}ukukhetha ukusetha okunzima kakhulu. Amazinga amabili amakhulu-UL3311 kanye ne-UL3279-ndawonye asingatha kahle kakhulu u-90–95% wezidingo ze-voltage eguquguqukayo, ephakathi{10}nokuphakama{9}okuphezulu{9}kanye{9}nokuphakama{9} usebenzelana nezikebhe nemishini yasolwandle, i-automation yefekthri, izinto ezisindayo zezimboni, noma amaphrojekthi wamandla amasha njengamabhethri nama-inverters, ukukhetha ikhebula elilungile le-EPDM kusiza ngempela ukugcina yonke into isebenza ngokwethembeka nokuhlala isikhathi eside.