1. For isolating power supply, disconnect the high voltage inspection equipment and live equipment so that there is a visible disconnect point between them.
2 、 waterproof metal switch and circuit breaker match, according to system operation mode need to switch operation, in order to change the system operation wiring mode.
In 3, the operation should pay attention to waterproof metal switch, waterproof metal switch circuit to send electricity to the first bus side, then the line side waterproof metal switch, and then close the breaker. When the line is out of power, the breaker shall be switched off, and then the waterproof metal switch is pulled out. High tension waterproof metal switch without load and tension.
4. Used to turn on or off a small current circuit. Waterproof metal switch can perform the following operations: bypass current can be pulled and closed switch; pull, transformer neutral point earthing, but when the neutral point is connected with the arc suppression coil, only when there is no fault in the system, before the operation; pull, voltage transformer and arrester, pull; the bus and the direct connection of capacitor current equipment on the bus; no load line, pull the capacitor current does not exceed 5 ANN; triple waterproof metal switch can pull, voltage at 10 thousand volts and below, the current safety following load in 15.

Waterproof push-button switch
Standard for judging waterproof button switches:
1. waterproof switch design is reasonable, long service life, high temperature resistance, high resistance to current shocks, the specific needs of your products, which should be considered.
2. application note: for the specific application of these waterproof button switch, is restricted by many factors, such as: installation direction, installation method and product function on the product flow, pressure, fluid rebound strength and working voltage and so on. Even if the Arcolectric waterproof switch with excellent sealing performance, its sealing technology has reached the leading level, and also means that the switch is completely sealed, but also need to prevent the invasion of corrosive gases or substances.