(1) Qabel ma tuża l-pinna tat-test, l-ewwel iċċekkja jekk hemmx resister tas-sigurtà fil-pinna tat-test, u mbagħad iċċekkja viżwalment jekk il-pinna tat-test hijiex bil-ħsara, jekk hijiex niedja jew ilma, u tista 'tintuża biss wara li tgħaddi l-ispezzjoni.
(Principle: There is a resistance in the test pen, and there is a light-emitting body - a neon tube. The key lies in the neon tube. After the resistance is reduced, there is a voltage to one end of the neon tube, forming a high potential. Your hand needs to touch the metal at the end of the pen. end, now you are the ground wire. There are two thin metal wires in the neon tube, which are very close to each other, but they are not connected. The neon tube is naturally filled with neon gas. Light discharge. If the voltage is too large, the neon tube will be broken down instantly. At this time, the neon tube will act as an insurance and will not cause too much damage to you. Low voltage will be more dangerous, because the traditional electric pen, the neon tube electric pen, operates at 100V. It will only light up from the left and right, so don't be careless, and don't let the electric pen get into the water, otherwise you will know the feeling of electric shock.)
(2) Meta tuża l-pinna tat-test, tmissx is-sonda tal-metall fuq quddiem tal-pinna tat-test b'idejk, peress li tagħmel hekk tikkawża inċident ta 'xokk elettriku.
(3) Meta tuża l-pinna tat-test, kun żgur li tmiss il-parti tal-metall tat-tarf tal-pinna tat-test b'idejk, inkella, minħabba li l-korp iċċarġjat, il-pinna tat-test, il-ġisem tal-bniedem u l-art ma jiffurmawx ċirkwit, il-bużżieqa tan-neon fil-pinna tat-test mhux se jarmu dawl, li jirriżulta f'ġudizzju ħażin. Huwa perikoluż ħafna li wieħed jaħseb li korp iċċarġjat mhuwiex iċċarġjat.
(The luminous voltage of the neon tube is above 70V, and the series resistance is 500K. When testing the voltage of 220V, the maximum current flowing through the human body is: I=(220-70)÷500=0.3mA and the human body only passes the current of 1mA. Feeling numb.)
(4) Qabel ma tkejjel jekk it-tagħmir elettriku huwiex iċċarġjat, l-ewwel sib sors ta 'enerġija magħruf biex tittestja jekk il-bozza tan-neon tal-pinna elettrika tistax temetti dawl b'mod normali, u tista' tintuża b'mod normali.
(5) When testing a charged body under bright light, special attention should be paid to whether the neon bulb really glows (or does not glow), and if necessary, the other hand can be used to block the light to judge carefully. Don't make a misjudgment, judge that the neon bulb is not emitting light, and judge that there is electricity as no electricity.
AC Voltage Tester Pen GD116B :
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