逆变器为什么输不出220v
我们的产品革新了基站储能解决方案，确保网络运营具备无与伦比的可靠性和效率。
electrical
US single phase line-to-line mains voltage is interchangeably referred to as 220V, 230V, and 240V. This is because it started off as 220V, but was raised incrementally over time to deal with increasing demands on the grid; right now, it''s said to be 240V at the service entrance, but 230V at loads to account for voltage drops in building wiring.