The application of small type interposing relay with high reactance in AC control circuits should be avoided,otherwise the power circuit of relay coil should be shielded or isolated.

• 在交流控制回路中应少采用小型高阻抗中间继电器,当采用小型高阻抗中间继电器时,应注意对继电器线圈电源回路的屏蔽或隔离。