The general power supply voltage 220 v or 380 v, the middle of the configuration of adjustable voltage transformer when necessary.
一般电源电压220伏或380伏，必要时配置可调节电压的中间变压器。
If button failure (after button released, the basket still keep rising or falling) or adhesion happens in the process of use, the general power supply should be cut and stop using.
在使用中如按钮失灵(按钮松开后吊篮仍然继续上升或下降)、接触器触点粘合等情况，则立即断开总电源开关，停止使用。
This document describes general equipment used in switching power supply testing and their characteristics.
此文件描述一般开关电源供应器的测试仪器及其特性。
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