Ordinary wires are not used for a long time, can they still be used after a long time, and it has be

The power copper core wire is designed to have a service life of 15 years, and now there is a domestic enterprise that claims to be a long-life cable with a service life of 30 years.

**Line design life is 8 years.

The design life of the network cable is within 10 years, and anyone who has ever been an Internet café should have an experience.

It's not that the wires will break down within this year, but it can be used as a reminder.

Yes, it is generally no problem to use it for more than ten years. You'll fold it down, see if the skin is broken, it's okay if it's not broken!

Look at the insulator situation. Break the wire by hand, and if the insulator cracks, don't use it. In fact, the quality of the wires made now is still okay.

Hehe、、、 wire has no shelf life, as long as it is not exposed to high temperatures and the insulating skin is not aged, it can still be used.

Check whether the insulation layer and copper core are aged, and they can still be used if they are not aged!

Whether the wire stored for 10 years can be used depends on the storage environment of the wire.

If the storage environment is relatively humid, it is easy to affect the quality of the wire, so it is generally not possible to use it again after 10 years. Because the circuit is not easy to repair after construction, it is necessary to observe whether the insulation layer of the wire has obvious cracking or aging before construction.

Observe whether the insulation layer of the code source wire has obvious cracking or aging, if there is cracking or aging, you can also use a tool to throw aside a section to look at the inside, if there is also an aging phenomenon inside, then in this case, the wire can not be messed up enough to be used again, because this is about the quality of the wire collapse mold file problem.

The normal use of indoor wires is generally left unattended within 20 years. If you use regular wires, the environment is good, and you can use high-power electrical appliances that exceed the load range for 50-60 years or even longer.

The length of the service life of the wire depends on the quality of the wire and the environment in which the wire is installed and the environment in which it is used. The wire is mainly insulated by a layer of outer skin, and after a long time, it is corroded by corrosive gas, and the insulation performance gradually decreases, and slowly ages and hardens, brittle or falls off, and then it does not have an insulating effect. The insulation layer on the surface of household wires is mostly made of plastic and rubber, which will age and lose its insulation effect after a long period of use.

Generally, household wires can be used for about 10-20 years under normal conditions. The wire insulation can be maintained for more than 50 years. It is very dangerous for the wire to lose the insulation performance, if the two wires touch together or the live wire touches something connected with the earth, the phenomenon of running power will occur, so that the temperature of the local wire will rise, and sparks will be generated.

If there are flammable materials near the wires, it is easy to cause a fire and cause a fire.

installed in PVC pipes.

The wires in the use of regular wires, there is no overload of the wire overheating and aging, can ensure more than 20 years without problems. If it is not buried, it is necessary to do regular insulation inspection after 15 years to ensure safety.

Summary. Dear, if you don't use ordinary wires, you can still use them after a long time.

Ordinary wires are not used for a long time, can they still be used after a long time, and it has been about a year or two

Dear, if you don't use ordinary wires, you can still use them after a long time.

1. Under the eaves: The cable is only not directly exposed to sunlight or ultra-high temperature, and the standard LAN cable can be applied, and it is recommended to use pipes.

2. Directly underground: laid in the cable trench, this environment is the smallest in the control range. The installation of cable trenches should be checked regularly for the degree of dryness or wetness.

3. Bending and underground pipelines: In order to facilitate future upgrades, cable replacement and isolation from surface pressure and surrounding environment, auxiliary pipelines are isolated, and auxiliary pipelines are a better way to avoid blindness. But don't laugh and hope that the pipes will stay dry forever, which will affect the choice of cable type.

Summary. According to experienced electricians, the average household wire can be used for 10 years under normal circumstances.

The wire is mainly protected by the outer layer of insulating skin, which is mostly made of plastic and rubber, which is easy to corrode and age after a long time, on the one hand, the insulating skin will become hard and brittle or even fall off, on the other hand, the insulation performance is greatly reduced.

In fact, the life of the wire is uncertain, just like the life of a person is long and short, mainly depending on the quality of the wire, the thickness of the wire, the installation environment, the use of the environment, etc. For example, copper core wire is stronger than aluminum core wire, not easy to break, and has a longer natural life; Wires installed in PVC pipes also outlive longer than wires running naked inside and outside walls. Therefore, if the environment is good, the wire can live longer

On the contrary, if a lot of high-power electrical appliances are added to the home, the wires will be overloaded for a long time, which will accelerate the aging and greatly shorten the life of the wires.

The use of expired wires is really harmful :

Do wires expire and how long does it usually last?

According to experienced electricians, the average household wire can be used for 10 years under normal conditions. The wire is mainly protected by the outer layer of insulating skin, which is mostly made of plastic and rubber, which is easy to corrode and age after a long time, on the one hand, the insulating skin will become hard and brittle or even lose its spirit and fall, on the other hand, the insulation performance is greatly reduced. In fact, the life of the wire is uncertain, just like the life of a person has a long and short life, mainly depending on the quality of the wire, the thickness of the wire, the installation environment, the use of the environment, etc.

For example, copper core wire is stronger than aluminum core wire, not easy to break, and has a longer natural life; Wires installed in PVC pipes also outlive longer than wires running naked inside and outside walls. Therefore, if the environment is good, the wire can live longer Conversely, if a lot of high-power appliances are added to the home, the wire will be overloaded for a long time, which will accelerate aging, and the life of the wire will be greatly shortened. The use of expired wires is really harmful :

According to experienced electricians, the average household wire can be used for 10 years under normal conditions. The wire is mainly protected by the outer layer of insulating skin, which is mostly made of plastic and rubber, which is easy to corrode and age after a long time, on the one hand, the insulating skin will become hard and brittle or even lose its spirit and fall, on the other hand, the insulation performance is greatly reduced. In fact, the life of the wire is uncertain, just like the life of a person has a long and short life, mainly depending on the quality of the wire, the thickness of the wire, the installation environment, the use of the environment, etc.

For example, copper core wire is stronger than aluminum core wire, not easy to break, and has a longer natural life; Wires installed in PVC pipes also outlive longer than wires running naked inside and outside walls. Therefore, if the environment is good, the wire can live longer Conversely, if a lot of high-power appliances are added to the home, the wire will be overloaded for a long time, which will accelerate aging, and the life of the wire will be greatly shortened. The use of expired wires is really harmful :