U-shapedlub davhlau ya nyob twgyog siv los pab txhawb kev sib txuas ntawm cov hlau. Nws yog ib qho ntawm cov hlau kaw hauv cov yas insulating, nrog qhov ntawm ob qhov kawg los ntxig rau cov hlau, thiab cov ntsia hlau rau fastening lossis loosening. Piv txwv li, ob lub xov hlau, qee zaum yuav tsum tau txuas thiab qee zaum yuav tsum tau txiav, tuaj yeem txuas nrog lub davhlau ya nyob twg thiab txiav tawm txhua lub sijhawm. Es tsis txhob welding lawv ua ke los yog twine lawv ua ke, nws yog ceev thiab yooj yim. Thiab haum rau ntau cov hlau sib txuas, hauv kev lag luam fais fab muaj qhov tshwj xeeb lub davhlau ya nyob twg thaiv, lub thawv davhlau ya nyob twg, saum toj no yog tag nrho ntawm cov hlua txuas, ib leeg, ob npaug, tam sim no, voltage, zoo tib yam, tawg thiab lwm yam. Ib qho chaw crimp yog los xyuas kom meej kov thiab xyuas kom meej tias tam sim no txaus tuaj yeem dhau mus.
Thaum siv rau nws lub hom phiaj, lub davhlau ya nyob twg muab cov hluav taws xob sib txuas hauv ib qho khoom siv ntawm cov hlau lead, lossis nruab nrab ntawm cov txhuas thiab cov khoom siv. Tej yam nta uas yuav tsum tau saib xyuas tshwj xeeb, xws li txhim kho rwb thaiv tsev yuav tsum tau thaum lub sij hawm hluav taws xob installation; Creepage ncua sij hawm ntawm cov hlau lead terminals ntawm txawv polarities, los yog nruab nrab ntawm txhuas terminals thiab uncharged hlau lub cev, thiab nruab nrab ntawm lub brackets ntawm cov hlau lead terminals, thiab lwm yam.
