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August 12, 2017 18:07

Why the circuit breaker is triggered ?

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Disabling circuit-breaker can be caused by many different reasons, ranging from the failure of the product and ending with a short circuit in the wiring.You can choose to determine why triggered tripping mechanism of power, and to do it at all not difficult, even inexperienced electrician.Then we will tell readers samelektrik site, why in the shield machine knocks and what to do to solve the problem!

Contents:
  • network congestion
  • Faulty household appliances
  • Koroto wiring
  • faulty AV
  • What else could it be?

Network congestion

The most common reason that turns off the circuit breaker (AB) is that he simply did his job - to protect the wires from overload and further failure.When we looked at the technical characteristics of machines, it was said that each model has a rated current of the trip: 6, 10, 16, 25 A, etc.Now, if you also included several powerful electrical appliances, which exceeded the current setting, do not be surprised, why knock-breaker in the house.For example, on your plate is automatic 16A (a classic situation for the old wiring) and you at one point included a washing machine, air conditioning, and electric boiler.The load on the network has increased markedly, causing the AV disconnected, thereby protecting the wiring.

Circuit breaker photo

problem can be solved in several ways.The first and easiest - alternately include powerful appliances to avoid an overload.The second - to replace the machine at 25 amp.This is allowed to do only if the wiring can withstand load (copper, cross section of not less than 2.5 mm2).Third, the most reliable - replace the wiring in the house with a new one that will be capable of withstanding a powerful appliances.

clearly explains the reason why the machine knocks on video:

What if there is an operation AB under load?
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draw your attention to the fact that after the machine knocks, if he thermal release device, turn it just will not work.This is due to the principle of operation of the product.When the mechanism cools down (time can reach several minutes), try to re-cock the lever to "ON.".

Faulty household appliances

If the machine is often knocks out and about in the same period of time with a high probability it can be argued that one of the faulty electrical appliances.For example, if you notice that the circuit breaker is activated when you turn on the washing machine, electric or water heater, turn off the equipment and check the behavior of the device without electrical appliances.Tripping does not occur?It is necessary to search for malfunction in one of the connected "culprits".For information on how to repair household appliances with their own hands, we are told in the relevant section.

Quickly find the faulty equipment can be by process of elimination.Turn off all the plugs from the sockets and turn connect.The instrument, which is whiling away, will trigger the circuit breaker under load.

Troubleshooting techniques

If you turned off all the equipment on the network, and the machine is turned off, then the case could be in the wiring.What to do in such a case, we will explain below.

Koroto wiring

Another reason why often knocks AB is a short circuit in the wiring.Phase in some point touches to zero, resulting in a short circuit and the machine performs its second protective function - short-circuit protection.If all users are disconnected from the network, and the operation takes place, it is necessary to fully test the wiring.this thing takes a lot of time and, in addition, care must be taken to locate the fault.

First of all you need to disassemble all the sockets and light switches, check the quality of live connections to the terminals.If the wires are hanging out, you need to tighten the screws.After sockets proceed to the junction box.Make sure that the wiring in junction boxes high-quality, no bare spots that may whiling away.After the boxes have to move on to the fixtures.Very often, beginners forget to check electrical chandeliers, if the machine knocks without load.The technology is similar to the test sockets - check for loose connections.

Revision of electrical wiring

At the very least you need to check the wiring, which in the majority of homes and apartment hidden (in the wall).It is best in this case to use a special device that can quickly and accurately find fault.But at home it is unlikely that someone can find it, so get out of the situation, you can use a multimeter.To learn how to determine the short-circuit in the wiring, using a tester, we are told in the corresponding article.If this does not work, be sure to call the master, who with the help of a thermal imager or other devices will find a short circuit and repair it.

faulty AV

Well, the rare cause, which is also not excluded - the bad quality of the machine, which knocks out the fact that defective.If you are sure that the wiring and appliances whole, and there is no overload - Check the machine by replacing a comparable one.We can confidently say that it will help solve the problem.That in the future will no longer be faced with such a case, be sure to check with a rating of the best manufacturers of circuit breakers and select one from the list.

What else could it be?

Apart from the above reasons that knocks out the machine in a cabinet, there are other rarely occurring.Briefly consider them, too.

If the circuit breaker is triggered when the bulb burns out, do not worry, it happens sometimes.The fact that the lamps burning occurs if the short-term overload and 6-10A denomination machine, it is possible knocks.LED and fluorescent lamps this will not happen.


Sometimes the situation can be found forums where AB knocks when the stabilizer is turned on.Here, too, the nuances associated with the operation of the device and your same inattention.The fact is that during start voltage regulators provide current which may exceed the rating of your machine, whereby it knocks.It may also be the cause of a stabilizer.Cheap Chinese models are renowned for their marriage.

If triggering occurs when the light - check multimeter lamps.To learn how to use a multimeter, we are also told.

banal reason for which the machine is turned off, is the incorrect connection of the device.If the veins are pulled up to the terminal ill, it is heated in this place, with the result that the heat can trigger release.Determining the cause will help visual inspection - submelting casing and wire insulation.If the plastic is melted much better to replace the circuit breaker.For minor injuries may be a stronger core screwdriver to tighten.

Installing the machine in the plate

little deviate from the topic, but still important note.If you are in the switchboard introductory and group machines, finding the cause is easier.Knocks on the AV input, without the group?Check correct assembly panel.If the machine is switched off some below the main, then, in this group there is a fault (lighting, sockets or separately connected hob).

Sometimes the problem occurs after flooding the apartment.Water enters at the connection wires are twisted and tape when it unstuck, resulting in the closure of the contacts.After the flood, it is necessary to make a revision of the wiring, so as not to endure to the situation, when it begins to trigger the circuit breaker.

Here we have provided all the reasons why knocks machine in a cabinet.Note that this situation may occur in the apartment and the private sector.We must act in the same way, even if the circuit breaker is turned off on the pole!If you are not confident in their abilities, it is better to cause a wizard that will secure the fault and fix it!

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