electrical system

Why does Vietnam use 220v voltage but Japan only uses 110v?
If you are an attentive person, you easily realize that electrical items brought from the US or Japan are often required to be used with a switch ...
ITU adopts smart grid standards
On December 21, the International Telecommunication Union (ITU) adopted new global standards for smart grid, in which the transmission line system is integrated with the function
Cheap electric appliances
Dr. Trinh Quang Dung from the Ho Chi Minh City Institute of Physics and the research team recently completed the model of solar power system connected to grid electricity for