(1) The voltage of the circuit under test should be lower than the rated voltage of the clamp meter.
(2) When measuring the current of low-voltage fusible fuses or horizontally arranged low-voltage busbars, each phase of fusible fuses or busbars should be protected and isolated with insulating materials before measurement to avoid short-circuit between phases.
(3) The jaws must be closed tightly and the range cannot be changed with electricity.
(4) Measurement is strictly prohibited when one phase of the cable is grounded. Prevent personal safety from jeopardizing personal safety due to the low insulation level of the cable head and the occurrence of ground breakdown explosion.
(5) When measuring the current of the high-voltage line, wear insulating gloves, wear insulating shoes, and stand on the insulating pad. (6) Pull the switch to the maximum range after the measurement of the clamp ammeter is completed, so as to avoid accidental overcurrent in the next use; and it should be stored in a dry room.
