1. xam tus nqi los ntawm qhov hnyav ntawm tooj liab. Nws ua hauj lwm thaum pib, tab sis lub teb chaws tus qauv overlooked ib qho teeb meem. Koj cov tooj liab yog tus pas nrig anaerobic, tab sis qhov tsis yog - tus qauv tsis yog. Thaum qhov hnyav ntawm cov seem tooj liab thiab cov pas nrig anaerobic zoo ib yam, tus nqi ntawm cov seem tooj liab thiab cov pas nrig anaerobic yog 10 txawv. feem pua. Yog li ntawd, lub teb chaws tus qauv cable tau siv zog ntau rau hauv kev tshaj tawm, thiab thaum kawg ua tsis tiav, thiab qhov sib txawv ntawm lub teb chaws tus qauv thiab tsis yog - tus qauv lav yog 10 feem pua.
Thib ob, txiav cov ces kaum ntawm cov khoom siv. Lub teb chaws tau nce kev tshuaj xyuas tsis kam, thiab tib lub sijhawm, nws kuj tau nce kev tshuaj xyuas cov khoom lag luam. Tsis yog- cov kab hluav taws xob tau pib ua haujlwm ntawm cov khoom siv ntxiv. Yog tias tooj liab suav txog 70 feem pua ntawm cov nqi ntawm cov cables, ces tus nqi ntawm cov khoom siv yog kwv yees li 20 feem pua. 20 feem pua ntawm cov nqi, yog tias cov ntaub ntawv tsis zoo me ntsis, tus nqi sib txawv ntawm lub teb chaws tus qauv tuaj yeem yog 5 feem pua. Peb kuj tau pom tias ntau cov cables uas tau nthuav tawm tsis ntev los no muaj teeb meem nrog cov khoom siv ntxiv.
3. luv meters ntawm cov xov hlau rau luv meters ntawm cables. Qhov tseeb, qhov teeb meem ntawm cov nplej luv ib txwm muaj, thiab qhov no yog qhov nyuaj tshaj plaws los xyuas. Nws tau siv ntau hauv BV, xws li 95-meter kab, 98-meter kab, lossis 90-meter kab. Tam sim no, vim qhov nce ntawm cov khoom tshuaj ntsuam xyuas, tag nrho cov khoom nyob rau hauv kev soj ntsuam tau suav nrog, yog li cov khoom tsis yog tus qauv tau pib ua haujlwm hauv cov lus qhia no dua. Kuv vam tias txhua leej txhua tus yuav mloog zoo, 100 meters yuav raug txo los ntawm 1 meter, thiab 1 feem pua ntawm cov nyiaj tau los yuav tawm.
Fourth, the two sides are thick and the middle is thin. That is to say, the cables at both ends are national standard, and the middle part is non-standard, so a lot of cost is saved, and the price of the corresponding cable will be much lower. You can't cut the test cable from the middle, so the leak is drilled like this.
