In the electrical appliance manufacturing industry, the following IEC protection classes are defined in IEC 61140 and used to differentiate between the protective-earth connection requirements of devices.
"There are all kinds of interesting questions that come from a knowledge of science, which only adds to the excitement and mystery and awe of a flower."
it was supposed to be serious
Character Oc It was art Then it was this Class 0
But it turned out like this. I really suck. Suck. Suck. These are characters from Class Z(ero) =...