Home line air switch closed after a period of time on the trip What is the reason?
In addition, if you disconnect the air switch meter degrees are still moving to explain the air switch problems are not completely disconnected from the power or empty on the line and the meter between the phenomenon of leakage of electricity or electricity meter problems. If you can not find the fault point you can open the empty line off the empty open a single load without the case of closing to see if it will not trip If you can not jump if you can use the table to measure the voltage at both ends to see whether the normal.
3 in the air switch below a part of the line where the environment is too wet line insulation damage caused by leakage earth fault. 4 in the air switch below the line there are short-circuit points, such as a section of the line insulation damage to the aging of the insulation performance caused by a short line between the zero line and the line of fire, or an electrical failure If this is the case you can disconnect all the electrical Power and then send the power if you can send all the electrical appliances can be connected to a power supply to see if there will be a trip if the air switch trip to find the reason.
The role of the air switch is over-current, some lack of voltage and other protection, etc., as you said the family with the reason why the air switch trip I think the reasons may have the following 1, the line in the electrical load is too large The rated current of the air switch 2 Supply voltage instability beyond the normal voltage plus or minus 20%
