Cable Quality Identification

Lub xeev tau qhia meej tias cov khoom siv tooj liab yuav tsum tau siv hauv cov tsev nyob tshiab. Txawm li cas los xij, nws kuj yog ib qho tooj liab hlau, thiab tseem muaj cov hlau tsis zoo tooj liab. Cov tub ntxhais tooj liab yog ua los ntawm cov tooj liab rov qab, uas muaj ntau yam impurities. Qee cov xov tooj tooj liab tsis zoo txawm tias tsis tshua muaj hluav taws xob ntau dua li cov hlau hlau, uas tuaj yeem ua rau hluav taws xob raug mob. Muaj ntau ntau yam, specifications thiab nqi ntawm cov xov hlau nyob rau hauv kev ua lag luam, uas ua rau nws nyuaj heev rau cov neeg siv khoom xaiv. Raws li tus nqi ntawm ob lub xov tooj tooj liab ntawm 2.5 square millimeters thiab 4 square millimeters feem ntau siv hauv kev kho kom zoo nkauj hauv tsev muaj kev txhawj xeeb, tus nqi ntawm ib co coil ntawm tib lub ntsiab lus tuaj yeem sib txawv ntawm 20 feem pua ​​​​rau 30 feem pua ​​​​ntawm cov tuam txhab sib txawv. Raws li qhov zoo thiab qhov ntev, nws tseem nyuaj rau cov neeg siv khoom txiav txim.

Raws li kev lag luam qhov chaw, qhov laj thawj yog vim li cas tus nqi ntawm cov xov hlau sib txawv heev yog vim muaj cov khoom siv sib txawv siv hauv cov txheej txheem tsim khoom. Cov ntaub ntawv tseem ceeb rau kev tsim cov xov hluav taws xob yog electrolytic tooj liab, insulating cov ntaub ntawv thiab cov ntaub ntawv sheathing. Hauv kev lag luam raw khoom, electrolytic tooj liab yog kwv yees li 50, 000 yuan ib tuj, thaum cov khoom siv tooj liab rov qab tsuas yog li 40, 000 yuan ib tuj; tus nqi ntawm cov khoom zoo ntawm cov ntaub ntawv insulating thiab sheathing yog 8, 000 yuan rau 10, 000 yuan ib tuj, thaum tus nqi ntawm cov khoom tsis zoo Tus nqi tsuas yog 4,{{10} } yuan rau 5, 000 yuan ib tuj, thiab tus nqi sib txawv yog ntau dua. Tsis tas li ntawd, qhov ntev tsis txaus thiab tsis txaus cov ntsiab lus ntawm cov kua nplaum nyob rau hauv lub insulator kuj tseem ceeb vim li cas rau tus nqi sib txawv. Qhov ntev ntawm txhua kauj yog 100 meters rau cov khoom zoo, thiab tsuas yog li 90 meters rau cov khoom qis; Cov khoom lag luam zoo tshaj nrog cov ntsiab lus kua nplaum hauv cov khoom siv hluav taws xob rau 35 feem pua ​​​​rau 40 feem pua, thaum cov khoom tsis raug tsuas yog 15 feem pua. Los ntawm kev sib piv, nws tsis yog qhov nyuaj rau cov neeg siv khoom pom tias qhov sib txawv ntawm tus nqi muag khoom ntawm cov xov hlau tiav yog tshwm sim los ntawm cov khoom siv dag zog.