How to identify a short circuit in the network?

Causes

short-circuit in the power supply occurs when a sharp increase in current,which in turn increases with decreasing wiring resistance.As a result, the critical current creates an increased temperature, which will result in ignition of combustible materials, including insulation and conductors.

reasons for which there is short-circuit current is above all:

• aging network.The insulating layer eventually wears out and breaks in the form of inflection where the contact and laid bare.
• Flooding neighbors causing moisture degrades the sticky side of the tape, which protects the twist.
• Mechanical damage of conductor insulation.For example, if you drive a nail straight into a place of occurrence of the cable.It is therefore recommended originally found the wire in the wall, and then move on to the construction work.
• negative effects in rats, who sacrifice their lives and just gnaw cable.In this case, you can avoid the danger of applying for measures to protect the wiring from rodents.Prolonged
• network congestion, leading to melting of the insulating layer.
• Failure of the appliance, which in turn, "whiling away the" electrical circuit.

Simply put, if the two bare wires of different poles touch (phase and neutral), there will be a sharp increase in temperature, and further adverse effects of a short circuit, which we'll talk further.

Possible consequences

Everything is obvious and you probably know what threatens to short-circuit occurrence in an electrical circuit.

Among the main consequences is necessary to allocate:

• melting lived that the explosion could harm the spray and human health including;
• inflammation of the insulating layer, which may be a consequence of the fire;
• out of the electrical system (possibly a non-refundable).

search methods

advance to determine where the fault current can be very difficult, and nobody cares about such events.Most often come to search after he knocks out the circuit breaker.

Find a short circuit in the wiring of the house can be as follows:

Visual inspection .If the insulation is damaged in a certain place, and two bare wires touch, the reason is there.The most common damage found in distribution boxes, sockets and switches in the field wiring.They saw the scorched shell - most likely this is the location of the fault.

using megger (or multimeter) to check the resistance of the circuit.Connect one wire of the tester to the stage, the other to zero (and then to the ground).When the zero display, then wiring is normal, if there is any value, the contacts are touching.For information on how to properly use a multimeter, we are told in the corresponding article!

draw your attention to the fact that finding a short-circuit multimeter is not always possible, due to its low voltage.Typically, this type of tester is used on the circuit is not more than 3 meters.

If the situation is the culprit himself appliance, not the network, it can be quickly calculated.In the event of a short circuit in the wiring hidden breaker immediately kicks.First, turn off all equipment with outlets, and then turn on the machine and alternately connect each device. method exceptions need to find the failed portion of the wiring and to repair it.

By the way, there is a popular method of finding short-circuit on the line - on sound.The bottom line is that in a place where whiling away the contacts will be heard crackling.A similar method - to determine the smell of burnt plastic problem area in the apartment or house.

Relying on the old-fashioned way, we do not recommend and advise to prefer testers to help accurately find the location of the fault even in the wall.

we recommend also see the instructions in the video, which demonstrated a search method using the radio:

Remedy and Prevention

First, consider how to fix a short circuit in thenetwork:

1. damaged section must be removed and re-connect contacts, carefully insulated bonding place.
2. If the outlet or switch scorched, do not need to try to recover them.It is cheaper and safer to buy a new product set.
3. old wiring must be completely replaced, becauseEven if you solve the problem once in a time, it can occur elsewhere.
4. If the reason in household appliances repair damage with his own hands.

As for prevention, you should perform the following steps:

1. If the outlet is beginning to spark, repair it or replace it with a new one, becauseoften it it it closes.
2. sure to do an audit of lighting and power groups of wires every few months the network, asFault may occur immediately, but over time.Starting the process can be detected by the color of the instrument housing - it will turn yellow and podplava if a short circuit occurs on the line.
3. sure to install a circuit breaker and residual current device.These instruments are effectively cope with problems such as short-circuit and prevent dire consequences.
4. When installing the wiring correctly count the cable cross-section to avoid any overload on the power devices.
5. All Groups cables do not need to fold closely next to each other during assembly work, so as not to damage the protective shell.
6. homemade metal detector and check it to make sure we do not bump into the cable under plaster wall before drilling.

That's all the information on how to find a short circuit in the wiring of the house and fix it without having to call a specialist.We hope that this guide has been helpful for you and helped in solving the problem.We also recommend to learn about how to make ground in the house!