Can the 5 (20) A meter withstand the current of 30A?
5 (20) A stands for this meter, allowing long running currents not exceeding 20A, instead of representing 20A for a short period of time. As for the meaning of that 5, nor is it representative of the rated current, but should be called the reference current. It is a benchmark used in the inspection and test of electric meters, such as detecting the light load of electric meters. The full load。 Starting current. And so on, that's the percentage of this 5A. For example, when the current reaches 1% of 5A, it can measure accurately, and achieve the standard of accuracy, such as measuring the accuracy of the meter under the ratio of 1%, 10%, 50%, 70%, 100%, etc. of 5A. As a reference, this parameter is meaningless to the user.
Power = voltage multiplied by the current.Current voltage = power divided byThe voltage you use is 220VDivided by 220 by 8000= is the current of this powerIf it is a mechanical meter, there is no problem, if it is an electronic plug-in meter, it can not
Able to withstand, but not for long periods of time, potentially dangerous
