Lub tshuab ntxig yog ua los ntawm cov plooj (porcelain) thiab cov khoom siv sab saud thiab qis dua hlau txuas nrog cov kua nplaum. Cov chaw tiv tauj nruab nrab ntawm lub ntsej muag kawg ntawm cov kab ntawm plooj (porcelain) thiab cov xov hlau txuas nrog them nrog cov ntaub qhwv tawv. Cov roj hmab hauv cov tog hauv plooj yog tsim qauv nrog cov xuab zeb, xaws, khawb, thiab lwm yam kom paub cov tshuab muaj zog thiab tiv thaiv kom tsis txhob xoob thiab tawv. Qhov saum npoo ntawm cov plooj (porcelain) seem yog tusyees coated nrog dawb ci, thiab saum npoo ntawm cov hlau txuas yog xim nrog grey sib nqus xim.
Cov qauv tseem ceeb ntawm cov kab thaiv cov plooj (veneers) muaj ob hom: kab noj hniav cais (hom tawg) cov qauv thiab cov qauv (hom tsis tawg-tawg). Cov rwb thaiv tsev nrog cov ncej yas sib xyaw ua ke feem ntau yog cov khoom tsis ruaj khov. Cov qauv tom kawg txhim kho kev nyab xeeb thiab kev ntseeg tau piv nrog cov qauv qub, thiab txo qhov haujlwm ntau ntawm kev saib xyuas thiab kuaj.
Insulator cov plooj (veneers) muaj ob daim duab, ntau thiab polygonal. Lub duab polygonal nce qhov kev ncua deb ntawm saum npoo. Qhov hluav taws xob ua haujlwm zoo dua li kev ua ntawm cov duab polygonal. Tsuas yog cov theem-tawm cov yas ua cov kab thaiv yas, cov khoom seem ntawm cov khoom yog polygonal.
Cov txheej txheem kua nplaum sab hauv, vim hais tias cov khoom siv hlau txuas lo rau hauv lub qhov ntawm qhov chaw ntawm cov kab hauv av, qhov nrug ntawm cov rwb thaiv tsev tau nce sib haum, qhov hluav taws xob ua tau zoo dua, thiab qhov chaw nyob ntawm qhov chaw teeb tsa kuj txo, tab sis vim tias cov kua nplaum sab hauv tsis zoo rau kev txhim kho lub tshuab ua kom lub zog, yog li Cov Hluav Taws Xob uas muaj lub zog loj ntawm lub zog yuav tsum siv cov kua nplaum sib txuas (piv txwv li, kev sib txuas sab saud siv cov kua nplaum sab hauv thiab cov ntawv qis qis siv cov kua nplaum sab nraud).
High-voltage kab disc-puab tshem tawm cov plooj hlau cov kab tsis huv raug siv rau lub rwb thaiv tsev thiab cov taag ntawm cov kab hluav taws xob sab saum toj kis thiab kis kab. Lawv feem ntau ua ke rau hauv cov kab insulator rau cov kab ntawm cov hluav taws xob sib txawv.
Orulinary type insulators yog tsim rau cov chaw dav dav. Yog tias cov naj npawb ntawm cov insulators nce ntxiv kom zoo, cov pa phem flashover kev ua tau zoo kuj tseem tuaj yeem txhim kho.
Cov ntaub thaiv tsis zoo cov nplaim hluavtaws ua los ntawm cov plooj (porcelain), cov kaus mom hlau thiab cov taw hlau ua los ntawm silicate xis mas thiab quartz xuab zeb nplaum tsis ntau dua 525. Ib txheej txheej tsis ntab ntw ua rau cov hlau ua kom zoo thiab cov hlau taw thiab cov nplaum, thiab sab saum toj ntawm txhais taw steel yog elastically lined. Lub ntsej muag dawb thiab ci ci xim dawb feem ntau pleev xim rau saum npoo ntawm cov khoom seem ntawm cov plooj (porcelain), thiab lwm cov iav ntsej muag kuj tuaj yeem pleev xim raws li qhov xav tau. Txhua tshav kub nyob rau saum npoo ntawm cov hlau hau thiab cov taw hlau yog zinc. Muaj ob hom laub-rub elastic txhav pins, W-hom thiab R-hom, uas yog ua los ntawm tin tooj dag, tooj dag, thiab austenitic stainless hlau. Lawv muaj zoo elasticity thiab corrosion tsis kam, thiab yooj yim rau disassemble thiab sib sau ua ke. Slotted cylindrical thiab hump-puab cais pins. Cov qub muaj zinc txog qhov kub kub, thiab qhov kawg ua cov tooj dag. Qhov saum toj-hais elastic locking pins, cylindrical pins thiab lwm qhov chaw tau muab hauv cov teeb tiav nrog cov khoom.
Cov rwb thaiv tsev raug muab faib ua hom pob thiab hom kab raws li hom kev sib txuas.
Cov kab hluav taws xob tsis zoo thiab cov nplaim hluav taws uas tsis muaj zog ntawm tib lub zog qib siv tib lub pob thiab lub qhov sib txuas rau qhov ntev kom paub meej kev sib hloov.