Iintambo ze-EPDM: olona khetho lufanelekileyo-kumsebenzi ophezulu woqhagamshelo lwamandla aguqukayo

Kwimizi-mveliso yanamhlanje, iimoto, zaselwandle, kunye neendawo zamandla amatsha, iintambo zenza indlela engaphezulu kunokuphatha nje amandla{0}}kufuneka zibambelele ngokuthembekileyo xa izinto zisiba nzima, nokuba bubushushu obugqithisileyo, ingqele, ukungcangcazela, ukutshiza ngetyuwa, okanye ukujika rhoqo. Yonke loo nto iyayenzaIntambo ye-EPDMNgokunokwenzeka, yiya-ekukhetheni xa iPVC eqhelekileyo okanye ezinye izinto ezigqumayo zinokuqhekeka, zibe lukhuni, okanye zisilele kwangethuba kulungiselelo olufunayo olufana namagumbi enjini, iintambo zesikhephe, ufakelo lomoya/ngelanga, okanye oomatshini abanzima. Namhlanje, siza kuxoxa ngezinto ezilungileyo ezingundoqo zeentambo ze-EPDM kunye neemveliso ezimbini ezisemgangathweni ze-UL ezenziwe kumzimveliso wethu{2}}UL3311 kunye ne-UL3279.

Iinzuzo ezizodwa ze-EPDM izinto zokugquma

I-EPDM yirabha yokwenziwa ebambe indawo kwishishini lentambo kunye nentambo ngenxa yeempawu zayo ezibalaseleyo zomzimba kunye neekhemikhali. Xa kuthelekiswa nezinto zePVC okanye zeXLPE zemveli, i-EPDM iyagqwesa kule miba ilandelayo:

• Uluhlu olubanzi lobushushu: Iyakwazi ukusebenza ngokuzinzileyo ukusuka ku-- 50℃ukuya +90℃/105℃, kwaye inokumelana namaqondo obushushu aphezulu ixesha elifutshane. Oku kuyenza ifaneleke ngakumbi ukuqalisa izixhobo kwiindawo ezibandayo ngexesha lasebusika, okanye kwiimotor kunye noomatshini bokuwelda kwiindawo ezinobushushu obuphezulu.

• Okugqwesileyo ukumelana nemozulu kunye -neempawu zokwaluphala: Inokumelana kakhulu nemitha ye-ultraviolet, i-ozone, kunye nokuguga kwe-atmospheric, kwaye ayifane yenzeke kukuqhekeka okanye umgubo nasemva kokuvezwa ixesha elide-ngaphandle.

• Ukuguquguquka okuhle kunye nokumelana nokugoba: Ihlala i-elastic nakumaqondo obushushu aphantsi, iyenza ilungele usetyenziso olufuna intshukumo rhoqo okanye ukungcangcazela, okunje ngeentambo zebhetri kunye nekhonkco lentambo yerobhothi yeshishini.

• Ukusebenza kombane okuzinzileyo: amandla aphezulu okugquma kunye ne-dielectric ephantsi engaguqukiyo, ilungele ukuhanjiswa kwamandla ombane aphakathi naphantsi.

• Iimpawu: UninziIntambo ye-EPDMs ithobela iimfuno ze-RoHS, kwaye{0}}umsi ophantsi we-halogen{1}}uguqulelo lwasimahla ngokuthe ngcembe luqheleka ngakumbi.

Ngokuqinisekileyo, i-EPDM ayikho i-panacea. Ayixhathisi kangako kwiihydrocarbons ezifana ne-oyile kunye nepetroli, ngoko ke ilunge kakhulu -kummandla wokuntywiliselwa kwe-oyile okanye ukudibana ne-oyile ngamaxesha athile.

UL3311: Ibhetri ye-90 ye-Classic kunye neMoto

UL3311yi-EPDM egqunyiweyo eyodwa-engundoqo ebhetyebhetye umgangatho wentambo kwimakethi yaseMntla Melika, isetyenziswa ikakhulu kwiintambo zangaphakathi, uqhagamshelo lwebhetri, kunye neentambo zemoto.

Iimpawu zayo eziqhelekileyo ziquka:

• IKondi: Udidi K okanye udidi M olubhijelwe lubhedu olungenanto okanye itoti{0}}ikopolo ephothiweyo (30AWG ucingo olucikizekileyo, ukuguquguquka okuphezulu)

• I-Insulation: I-rubber ye-EPDM ye-Thermosetting, ngokuqhelekileyo kunye nephepha lokukhululwa kwephepha.

• Ixabiso lombane: 600V

• Iqondo lobushushu: -50℃~ +90 degree

• Ukubuyiswa komlilo: Uphumelele uvavanyo lwe-VW-1 okanye i-FT1

• Usetyenziso oluqhelekileyo: iintambo zebhetri zaselwandle, iintambo zoqhagamshelo lwenkqubo ye-UPS, iintambo zemoto yemizi-mveliso, iforklift/umbane webhetri yemoto edityanisiweyo, iintambo zamandla oomatshini abakhulu.

Umzekelo osebenzayo: Thatha intambo eyi-4/0 ye-AWG (leyo malunga ne-107 mm²) ilinganiswe phantsi kwe-UL3311-yeyona ixhaphake kakhulu kuqhagamshelo lwebha yebhasi kwiziguquli ezinkulu okanye ukuseta ugcino lwamandla. Kwiqondo lobushushu le-90 degrees, inokuphatha ngokukhuselekileyo ngaphezulu kwe-400A. Olona kuphumelela lokwenyani luhlala lubhetyebhetye luhlala lubulela kuloo ntambo icolekileyo (ihlala i-2109 imisonto engama-30 yocingo lwe-AWG), ukuze ukwazi ukuyihambisa kwiindawo ezixineneyo ngaphandle kobunzima obukhulu ngexesha lofakelo.

UL3279: Uphuculo lwe-105 iqondo loKhetho lokuchasa ubushushu obuphezulu

Ukuba indawo yesicelo sakho inamaqondo obushushu aphezulu okanye ifuna{0}}ukusebenza kwexesha elide phantsi komthwalo ophezulu wobushushu, UL3279 lukhetho olungcono lokuphucula. Ubume bayo bufana kakhulu ne-UL3311 (kunye nekhebula le-EPDM, i-600V, i-conductor copper engqingqwa exineneyo), kodwa izinga lokushisa liyenyuka ukuya kwi-105 degree.

Umahluko ophambili:

• Uluhlu lobushushu: -50℃~ +105℃(ubushushu obuqhubekayo bokusebenza bungaphezulu kwe-15 degreeUL3311)

• Iimeko ezisebenzayo: Ii-aplikeshini ezifuna uzinzo oluphezulu lwe-thermal, njengesixhobo semizi-mveliso esikufutshane nemithombo yobushushu, iintambo zoomatshini bokuwelda, kunye{0}}noqhakamshelwano lwebhetri oluphezulu lwamandla kwiimoto ezithile zamandla amatsha.

• Umthamo wangoku wokuthwala: Phantsi komnqamlezo -icandelo elifanayo,UL3279ivumela umsinga ongaphezulu kancinci ukuba udlule (ngenxa yomda omkhulu wokunyuka kobushushu).

Uninzi lweentambo zebhetri{0}}ezifana ne-2/0 AWG okanye 4/0 AWG ozibona ngalo lonke ixesha{5}}zize nazo zombini UL3311 kunye ne-UL3279 eziprintwe kanye kwibhatyi. Oko kuthetha ukuthini xa usebenza intambo ilungile ukuya kuthi ga kwi-90℃xa ulandela imithetho ye-UL3311, kwaye inokumelana ukuya kuthi ga kwi-105℃xa uhamba nge-UL3279.Ngokwenyani{13}}usetyenziso lwehlabathi, nangona kunjalo, abantu abaninzi bathembela ekuyiphatheni njenge-UL3279 -ukuseta iintambo ze-injini ezilinganisiweyo zibandakanya ii-motor ezilinganisiweyo xa zikhokelela kwi-injini. iiwelder, okanye i-inverter heat sinks) okanye lawo-amandla amakhonkco aphezulu kwizinto zamandla amatsha afana neepakethi zebhetri ze-EV kunye ne-solar inverters. I-headroom ye-15℃eyongezelelweyo ikunika uxolo lwengqondo ngakumbi kwezo ndawo zishushu, ezinomsebenzi onzima.

Ukuthelekiswa kweemeko zokusetyenziswa kwezi nkcukacha zimbini

Iingcebiso zokuthenga kunye nokusetyenziswa

1.Qinisekisa iimfuno zobushushu: Ukuba ubushushu bexesha elide lokusebenza busondele okanye bungaphezulu kwe-90 degree, kukhethwa i-UL3279.

2.Nika ingqalelo kwi-conductor stranding: I-Class K (i-30 strands of fine wire) ine-flexibility best kwaye ifanelekile ukugoba rhoqo.

3.Umbala kunye nokuphawulwa: Iintambo zebhetri zidla ngokusebenzisa umbala obomvu nomnyama ukwahlula iitheminali ezilungileyo nezingalunganga. Qaphela ukuba i-diameter yangaphandle ifanelekile kwiitheminali zakho.

4.Isiqinisekiso esipheleleyo: Iimveliso ezisemthethweni kufuneka zibe nenombolo yefayile ye-UL (E{1}}ifayile), enokuqinisekiswa kwi-intanethi. Umzekelo, umzi-mveliso wethu yi-E352430.

5.Amanqaku oFakelo: NangonaIntambo ye-EPDMziyanxitywa{0}}ziyaxhathisa, ziphephe ukuntywiliselwa ixesha elide kwi-oyile; kucetyiswa ukusebenzisa izixhobo ezikhethekileyo xa uqhawula iingcingo ukuze ugweme ukulimaza i-insulation.

Kufuphi,Intambo ye-EPDMs baphume phambili ekuqineni kwazo zonke{0}}umsebenzi ongqonge iimeko ezinzima, zibenza baye{1}}kukhetho lokuseta olufuna ngamandla. Imigangatho emibini emikhulu{3}}} UL3311 kunye ne UL3279 -kunye iphatha intle kakhulu 90–95% yeemfuno zoguquguqukayo, phakathi {10} noqhagamshelo olusezantsi {9}kunye {9}kunye ujongene nezikhephe kunye nezixhobo zaselwandle, i-automation yefektri, izinto ezinzima zoshishino, okanye iiprojekthi zamandla amatsha afana neebhetri kunye nee-inverters, ukukhetha intambo ye-EPDM efanelekileyo inceda ngokwenene ukugcina yonke into isebenza ngokuthembekileyo kwaye ihlala ixesha elide.