Problems that should be paid attention to when using clamp ammeter、
①Because the clamp ammeter is in contact with the line under test, it is necessary to check whether the insulation performance of the meter is good before measurement, that is, the shell is not damaged, and the handle is clean and dry.
② When measuring, wear insulating gloves or clean wire gloves.
③ When measuring, pay attention to keep a safe distance between each part of the body and the charged body (the safe distance for low-voltage systems is 0.1/0.3m).
④ Clamp ammeters cannot measure the current of bare conductors.
⑤ It is strictly forbidden to switch the gear of the clamp ammeter during the measurement; if it is necessary to change the gear, the measured wire should be withdrawn from the jaw before changing the gear.
⑥Select the clamp ammeter strictly according to the voltage level. The clamp ammeter of low voltage level can only measure the current in the low voltage system, and cannot measure the current in the high voltage system. It is strictly forbidden to use clamp ammeters for current measurement of circuits above 380V.
