How to change space?

Air switch plays a very important role in indoor circuit, which can better protect our electricity safety. However, if there is a problem with the air switch, it needs to be replaced in time to ensure safe use. Do you know how to change the air switch and how to judge the quality of the air switch? Now let's have a look.

First, how to replace the air switch

1, prepare necessary tools, such as screwdriver and new air switch; 2. Cut off the indoor power supply and remove the old empty shell; 3. Unscrew the screw connecting the air switch power supply and take out the wire; 4. Connect the new air switch to the power cord and assemble it, then connect the power supply.

Second, how to judge the quality of the air switch?

1. If you want to know whether your air switch is good or bad, you can measure it with a multimeter. The method is also very simple: first, remove the upper and lower incoming wires in the air switch, leaving only one air switch, and then debug the multimeter to the resistance file to measure the two points of the air switch. If it is on, the resistance of the multimeter is very small.

2. Adjust the gear with a multimeter, and measure the transverse terminal of the air switch with a multimeter. If the air switch used is 1p, it can be ignored. If the air switch is 2p, after pushing the air switch up, measure the two ports of the air switch to see if there is a short circuit, and you can know whether the air switch is good or bad.

3. You can simply know whether there is a problem with the air switch without measuring with a multimeter. At this time, you only need to push the air switch up or down by hand, and judge whether the whole process is smooth by feeling, so you can know whether there is something wrong with the air switch.

Air switch is our common name, and the correct name is air switch. The air switch is generally low voltage, that is, the rated working voltage is 1Kv. Air switch is a switching device with multiple protection functions, which can cut off and connect the circuit under rated voltage and rated working current. The type and protection mode of its protection function are selected by users according to their needs. Such as short-circuit protection, over-current protection, shunt control and under-voltage protection. The first two protections are the basic configuration of the air switch, and the last two are optional functions. Therefore, the air switch can also cut off the circuit under fault conditions (load short circuit, load overcurrent, low voltage, etc.). ).