Txhawm rau kom muaj kev nyab xeeb thiab kev ntseeg tau ntawm cov cable no. Nws yog qhov tseem ceeb rau kev ua raws li cov qauv kev xeem thiab cov hau kev rau cable tuam ntxhab mus ua lub Hoobkas lees txais tester. Peb yuav tshawb txog cov qauv kev xeem thiab cov hau kev rau cov cab tsawg heev.
Cov Txheej Txheem Kev Ntsuas Loj
Ua ntej thiab foremost, nws yog qhov tseem ceeb kom nkag siab cov qauv ntsuas ntsuas uas siv tau rau cov hluav taws xob tsawg.
Cov Qauv Thoob Ntiaj Teb
1. Ib qho IEC 60502: Muaj feem xyuam rau hluav taws xob nrog ntsuas hluav taws xob los ntawm 1kv, nws yuav tsum tau muab cov kev tiv thaiv cov tshuaj tiv thaiv tuab, cov neeg ua yeeb yam tsis kam
2. Iec 60227: Rau polyvinyl chloride cables insulated cables
3.
Main Testing txoj kev
Thaum nws los rau kev sim ntsuas cov roj hluav taws xob tsawg, muaj ntau txoj hauv kev uas feem ntau ua haujlwm.
1. Rwb thaiv tsev tsis kam
Txoj kev: Siv ohmerceter (500v lossis 1000V ntau) los ntsuas cov kev tiv thaiv ntawm tus kws kos npe thiab ntau dua lossis sib npaug nrog 100 xeem neeg).
Txheem: Raws li GB / T 3048.5-2007, lub sijhawm kuaj yog 1 feeb, thiab ib puag ncig kho kom haum.
2. Withstand voltage kuaj
Lub zog zaus nrog voltage: thov 2.5U₀ + 2 kv (U₀ yog 5 feeb yog ib qho kev puas tsuaj (raws li GB / T 3048.8).
DC withstand voltage: Haum rau cov hluav taws xob qub, nrog ib qho hluav taws xob qub, nrog rau 6 lub sij hawm u₀, tab sis nws yuav ua kom nrawm rwb thaiv tsev laus thiab yuav tsum tau siv nrog kev ceev faj.
3. Ib nrab tawm (muaj feem xyuam rau nruab nrab thiab siab voltage clesles): Thov cov voltage ntawm 1.5U₀, thiab cov tshuaj paug yuav tsum tsawg dua lossis sib npaug ntawm 106 (iec 60885-3).