Cov cuab yeej siv mining yuav tsum dhau ntau qib 1 daim ntawv pov thawj kev nyab xeeb, nrog MT / T 1097-2008 "Nruam Kev Nyab Xeeb Hluav Taws Xob Hluav Taws Xob rau Coal Mines" yog tus qauv tseem ceeb. Tus qauv no imposes peb stringent yuav tsum tau rau cov cuab yeej:
1. Impact Resistance Test: Cov cuab yeej yuav tsum tiv taus qhov kev poob qis los ntawm qhov siab ntawm 1 meter yam tsis muaj deformation ntawm cov txheej casing los yog kev puas tsuaj rau cov khoom siv sab hauv, kom ntseeg tau tias nws yuav tsis poob vim kev sib tsoo thaum lub sij hawm thauj mus los hauv av lossis kev teeb tsa.
2. Corrosion Resistance Test: Tom qab immersion nyob rau hauv ib tug 5% sodium chloride tov rau 72 teev, lub corrosion qhov tob ntawm lub txheej casing yuav tsum tsis txhob ntau tshaj 0.5 hli, adapting rau high humidity thiab siab ntsev tsuag ib puag ncig underground.
3. Lifespan Test: Tom qab 5000 teev ntawm kev ua haujlwm tas mus li, cov cua sov ua haujlwm yuav tsum tsis pub tshaj 10%, ua kom muaj kev ruaj ntseg thaum lub sij hawm ntev - siv.