“江海”牌电动手术台是国产的几种电控手术台之一，该产品曾获江苏省科技进步二等奖和江苏省新产品“金牛奖”。然而在实际临床应用中却暴露出电气控制电路潜在故障率较高的缺点。究其原因主要是电气控制电路中间继电器数量过多，线路过份复杂，使得线路成本增加，潜在故障率? “Jianghai” brand electric operating table is one of several electronically controlled operating tables made in China. This product won the second prize of scientific and technological progress in Jiangsu Province and the new product “Golden Bull Award” in Jiangsu Province. However, in actual clinical applications, the disadvantages of high potential failure rate of the electrical control circuit are exposed. The main reason is that there are too many relays in the electric control circuit, and the lines are too complicated, which makes the circuit cost increase, and the potential failure rate?