Write-off of finished products with the term of applicability, which is past. Advantages of copper wiring

Black electricity is called cables that are connected between themselves. Black electricity can be laid on the surface, so it looks like attached holding, immured in the wall or under the log. All electrical sockets and vimikachi can be seen before the clean electrics, as they are mounted exclusively on the surface.

The terms of the electrical wiring service are subdivided into nominal, actual and warranty.

Nominal term of service

Tse poddnannya factors, under which it is ensured that the production camp is virobu. For the nominal term of the service, the transfer of the upper and lower boundaries.

For example: the NYM cable is used for the installation of electrical wiring, both at the request and in the industry. You can be exploited like in the occupants, so it is after them. cable for operating voltage 0.66 kV and can work stably for temperatures from -50 to +50°C. In minds, the term of service was for the cable 30 years. However, the virobnik factory gives a guarantee of 5 years. This means that by stretching a 5-year cable at the maximum rated parameters in operation (0.66 kV at a temperature of -50 to +50 ° C) to spend its practicality, then the goiter will ensure that it is replaced.

Warranty term of service

For the whole hour, with the help of some kind of undertaking that prepared the cable, it is guaranteed and safe to save the given characteristics of the fiber. Guarantee of acceptance-virbnik is more than reasonable for the understanding of the total dotrimannya spozhivachem usih rules for yogo transportation, taking care of installation and operation. If you break the rules of cable operation (for example, by allowing the cable to overheat to +70°C), then in this case the guarantee will be cancelled.

Actual term of service

To lie in the middle of the spring, it is known to them, as if they had been turned around like a stone. The actual term may be changed, so be less than that specified in the factory documentation for this type. The actual term of the service to the virobu is defined only by the technical standard.

The term of the service of a clean electrician (sockets, vimikachi, cords, plugs of sockets) should be left openly in the event of a delay in this yogo double occasion with equipment. As for the black electrics (the cable is the same cable), then the situation is different. On the right, in the fact that such electric shields for additional automatic machines protect the line in such a manner that whether one of the automatic machines (for understanding the correct choice) is connected richly earlier, the cable will not burn out, but will heat up more often.

For example: a cable with a 2.5 mm span is easily visible strum from 20 to 25 amperes. When you protect it, the automatic machine is less than 16 amperes. Zavdyaki tsomu cable does not heat up, and then, serve forever. If you fall on such a strum cable at 80 amperes, then, as you understand, it will burn. Ale, such fluctuations are more rare.

The warranty term of the electrical wiring service is responsible for becoming less than 10 years old. Well, if you give a guarantee of less than 10 years as a deputy, then such “fakhivtsy” are definitely not varto. Chornov's electrician is to blame for five or more renovations. Changes are made periodically every 5-7 years.

In this rank, for the most important minds, the exploitation of a black electrician is obliged to serve at least 50 years. After the end of the nominal term of service, the measure is re-tested for the purpose. If, as a result of such a test, an electric cable breaks, it will be changed. If the cable is exposed to the cable, then its operation is three. Іsnuyut objects, on which old aluminum conduction served over 70 years.

Modern cables used with spring terminals in buildings can be easily processed for at least 100 years. During this hour, the electric cable is tested on special test benches.

Test stands, all mechanisms that simulate the operation in the minds of the most close to the right ones. It is possible to accurately predict what will happen to the cable in 10, 30, 50 and 100 years of operation in just a short hour.

Testing stands are recognized as cable testing, as well as testing the same day. Stand with closed applications in which cables are laid in walls, corrugations, and also just near open spaces. The cable is suitable for various applications. So, yakі can become in the minds of real exploitation. Tse navantazhennya strum, temperature fluctuations, moisture fluctuations. The cable, which has been tested during testing, allows further exploitation without the need to replace it.

Up to category: Electricity at the cottage

Replacement of electrical wiring at the booth

If you want more than that, but if it went to the internal repair of the booth, then - moreover, you will have to replace the entire electrical wiring. On the right, in the fact that earlier the wiring was robbed mainly by aluminum drotom, which is the age of old and wasting its power. Service term for aluminum wiring in living booths- 30 years for the attached, 20 years - for the return. Behind the warnings of the fahivtsiv, for the entire period of vinyl insulation becomes a lame, afterward, the wires are overwhelmed by frequent fluctuations of incomprehensible short flickering, like an afterthought, after. Another reason to burn is a place with a filthy contact to warm up, to open, to oxidize even more, to warm up even more, which as a result will again lead to burning. Midny drіt, zvichayno, yakіsnіshiy, however, і vіn іn mіstsyah z'єdnanny shilny to oxidization, and if the contact is damaged, it heats up and burns.

Forget it, that in the long run the darts were twisted, but when twisted and aluminium, and the middle darts are oxidized for an hour, they become weak, to build up support, overheating that sparkle. This may also be the reason for the exit of the merezhі from the fret of that borrowing.

It is important that earlier there were no air conditioners, micro-furnaces, a whole set of butovy electric appliances and audio and video equipment. Obviously, there were no problems with the electrics. Now, as if not breaking traffic jams, the wiring is worn out due to irrepressible ambitions. Even if it’s summarily, but I’ll change it to the bіdi one crochet.

There is only one way out: the wiring needs to be changed, not allowing the entry “before the offensive repair”. Tim more that at once without any problems you can add darts, which you can give to modern let's get electric: PBPP-3 with a spanning of 2.5 mm and the third veil - grounded with a spanning of 1.5 mm; steel cable for yoga rozvazhuvannya, as well as a series of medium single-core single-core and bagatopro-. hot wires PV with a cross section of 1.5 to 10 mm, to be installed for breeding, in electrical panels and in.

Vykhodyachi z practical mirkuvan, wiring slid robiti middle drotom (with a gap of 1.5 mm2 - for lighting; for power sockets - 2.5 mm2). When enough great strums Pererіz drotu vibrate according to the tightness, which is connected. Sound to come out of the rozrahunka, that the voltage of 1 kW and 1.57 mm2 lived. Zvіdsi vyplyvayut priblizhenі znachenya pererіzіv drotu, yak next dotrimuvatisya under the hour of choice of yogo diameter. For aluminum wires tse 5 A per 1 mm2, for medium ones - 8 A per 1 mm2. Seemingly simpler, how do you stand instantaneous water heater for 5 kW, then connect it with a drotom, we will cover at least 25 A lower, and for honey dart perimeter can be not less than 3.2 mm2.

For the kitchen, it’s better to install a wire (to bring it to the automatic machine) with a 4 mm2 wire rod (and if you have an electric stove, you need to take wire from 6 mm2).

Most often in the kitchen there are two okremi sockets (for a TV set and a refrigerator), as well as a block of sockets for kitchen appliances (cavo grinder, micro-powder stove, etc.). In addition, vimicach is being installed. The next thing to remember is that the vimikach is guilty of investigating the phase wire - to ensure the safety of the voltage on both contacts of the lamp cartridge at the switched-on station.

It is possible to determine the phase conduction for an additional phase-shocker, or a probe, as it is also called. Vіn є empty in the middle of the twist, in which there is a neon light bulb. When dotik with a sting of twisting to a bare dart, the neon light bulb lights up. Like a light bulb at the dotik, it didn’t save the dart - zero wire.

Even more important power supply is the possession of grounding - an extension for electric power supply from the earth, possession of that equipment, as it is recognized for protection from unsafe conditions electric struma. It is necessary to protect the premises with a small ground loop, so as not to go beyond the boundaries of the premises. The ground loop can be closed, i.e., it covers all the applications. All electrical appliances may be closed to a ground loop. Mayte on the ground, that as a grounding loop it is not possible to vicorize the elements of the scorched, metal structures of the future.

With the help of the method of protecting the defense against a strum attack, during the torment of an incorrect outbuilding, a special attachment zahisnogo inclusion(EPV). It is designated for the induction of a coil of strum from the lance (the one to create a strum that flows through the body of a person) and, apparently, the inclusion of a voltage. In other words, the ELV is recommended to be vico-driven in case of streams of overwhelming or short-term automatic vimics abo іz zabіzhniki, yakі zahivayut їх vіd termіchnyh chi dynamіchnyh revantazhen. Sometimes it is called a block of a turn, or, moreover, a block of a turn of a stream. For a booth, a shorter pіdіyde type А-ПЗВ zі spratsovuvannyam with strum_ coil 10 or 30 t (produced by the concern "ABB").

When installing new electrical wiring, it is impossible to work in the old way, using pliers and electrical tape. Victory everything that virobnik firms pronounce: happy clemy for sockets and lamps, rows, roses, indicator, diodes, zahisnі, montazhensh'yarusnі, prokhіdnі, іnіtіatornі and aktorn_ klemi, spring-zatisknі pristroї, plastikoі z'єdnuvаchі, kosovі nіzda (stіlniki), multiznjad system in.

Zastosuvannya of plastic plates-constipation will allow you to see the risk of creaking and drіt-"lokshina" to the core with flowers. Sufficiently glue and fasten with BMK-5 glue, which is included in the kit, so that it is safe to fix the wire on the base. The high quality of the glue on the winder allows you to straighten and fix the wires. Covered with plaster, so constipation does not show up in the year at the sight of rusty patches on the trellises.

If necessary, electrical wiring can be laid at cable channels or pipes. Yes, for wiring electrical cables and drotiv zastosovuєtsya gnuchka іzolyatsіyna corrugated plastic tube. It is elastic in length, like a great gnuchkist, cut in cut, water-resistant tube is made of polypropylene, steel rod and other components and is not fireproof. Inappropriately, having proven itself the electrical engineering plinth PE-75, manufactured from fire-safe plastic in three colors and equipped with transitional boxes, ovnishnimi and internal kuta and compensators.

Respect!
Wrong electrical wiring has become unsafe not only for electrical appliances, but for the life and health of you and your loved ones. mustache electrical engineering robots maє vykonuvati qualifikation master.

The electrical wiring should be laid according to the detailed plan. At the core which document, Yaky zgoda melodiously make your life easier, two principles are to blame: electrical safety and reliability of vikoristannya.

Before the cob of the cob, it is necessary to accurately determine the location of the sockets and the installation of additional lighting, the electric towel dryer and the cleaning machine. The best on the plan is a booth on a scale to indicate the placement of all electrical elements. On the entrance shield are installed okremі automati power sockets, lighting, an electric stove, a water heater and a heating machine, and also if you want one hot ELV for the entire house (if you want to install an ELV spout more quickly: on sockets, on an electric stove, on a water heater and a heating machine).

At the stage of laying out the wiring diagram, it is necessary to choose the type of sockets and the choice of the same type electrical installations choose suitable sockets. At the given hour, the sale is equal to the quantity different types electrical installations, both domestic and foreign (for example, "Make1", "ABB", "VImar" etc.).

When it is necessary to protect such:

Electric lights, wiring boxes, sockets and vimikaci owen are placed at the places accessible for maintenance and repair, and the plumbing parts are owed and closed.

For wires, strobes are shredded at the walls, for which plastic tubes are laid, for which darts are passed. In the event of an accident, you will be able to recover the entire wire and replace it with a new one, without delaying the work. Ring out victorious corrugated pipes with a diameter of 16 and 20 mm, yakі are sold in bays up to 100 m.

At the places of installation of sockets and vimikachiv at the walls, special burials are added, in the yaks, double sockets are installed.

Carry out the laying only along vertical and horizontal lines, and you can pinch them exactly in the house, so that you can avoid trouble when drilling open, clogging flowers, etc. Horizontal laying is carried out on 50-100 mm from the eaves and beams, 150 mm from the stele and 150-200 mm from the plinth. Vertically laying of the railings of the wires of the wires in the distance to the ducts of the premises, the windows and the door openings is not less than 100 mm lower.

It is necessary to prostrate, so that the wire does not stick to metal structures budіvlі. parallel gasket near pipelines with combustible crevices (gas) are vibrated with a blower less than 400 mm. Due to the presence of hot pipelines (scorching and hot water), the wiring is to be protected from the high temperature with asbestos gaskets, or it is necessary to block the wires from the cold covers.

It is fenced to lay darts in bunches, as well as the distance between them is less than 3 mm.

At the premises of the installation, that electrical wiring for all types of electrical wiring is installed at suitable and electrical wiring boxes.

For the installation of grounding conductors and zero wires, the next step is to make a zvaryuvannya. The arrival of these conductors to electrical appliances, which are grounded, are fixed with bolted connections. With the help of the conductors, they will be safe zahisne grounding, it is not guilty buti zapobіzhnikov and vimikaciv. Otherwise, when spratsyuvanni zakhistu all accessories, included to the line, lean against the unsafe potential of the fence.

In the rest of the hour, often place sockets without a middle at the bathrooms (mainly for cleaning cars). However, the hosts promoted vology it is not possible to install sockets and vimikachi. socket for cleaning machines better put the call.

These are the main provisions, on which they follow the spiral during the installation of electrical wiring. After the completion of the work, paint yourself or ask the electrician to paint the wiring plan from the designated place for connecting new darts to the old ones, as well as zones where the darts will pass. Line and nehtuvat sim not warto, to that in two or three months after the end of the work you will hardly guess what is there and yak.

Replacement of electrical wiring at the booth

When laying a new conduction, the sergeant’s office should work everything in such a way that it doesn’t turn around before the operation, so during the repair, or in the process of life, start to crack, skilki become the term for the service of the drone. When you often blame the slut in the appointed understanding of the term of service - designers, cable builders and electricians operate with different numbers. That hand is significant for the terminology.

Nominal term of service

This pokaznik may be theoretical in nature; Indicates an hourly interval, by stretching such a cable for the mind and understanding the rules of its operation, it is possible to safely secure the delivery of electricity to residents of the city. Butt: for NYM cable, which works in the temperature range from -50 to +50 ° С, the tension on the voltage does not exceed 660 volts, the term is 25-30 years.

The practical sense of zastosuvannya tsgogo opyatya polygaє only in the planning of carrying out preventive work and re-verification will be carried out. The real term of exploitation can be changed exactly from the nominal one.

As a rule, the term of service of wires and cables, which is guaranteed by the distributor, is less than the nominal one. For example, in case of a guessing NYM cable, the designer puts in the documentation the nominal term of operation of 25-30 years, and the manufacturer gives a guarantee for more than 5 years. Tse means that in the event of a faulty breakdown in the cable (otherwise in case of melting), that having served less in an hour, the virobnik should be replaced without cost.

Ale is one important moment. A cost-free replacement is carried out only for the minds of the minds of a whole series of minds:

• the firm-seller has ensured the safety described by the picker to the minds of the savings;
• under the hour of transportation, the rules of the її carried out, as described by the postal worker, were not violated;
• installation was carried out by an organization or by a private individual, as I have a license;
• the real minds of exploitation did not go beyond the limits set by the picker.

If the cable is overheated, if the voltage on the new bulb is higher than the maximum rozrachunkov, or if the maximum force of the stream is exceeded, the guarantee is void.

Report about guarantees

Cable makers check their products on special testing stands. Rechecks are carried out for the minds, approaching the real minds of exploitation. Cables are laid in strobes, in corrugations, and are included in the wiring diagram with terminals and twists. After the first posting to pass “testing for the temperature” - the middle rozrahunkovy navantage, peaks (and for the pressure, and the force of the struma) are served on the darts, the reaction to the change in the temperature regime is changed.

In order to define the term for the service of PVA, the shell of which is folded into soft vinyl, in the application, to undergo testing, to change the moisture regime, in certain fluctuations, the wires are re-verified for building against UV-treatment.

Rechecks are carried out when a new skin series is launched, when a new possession is introduced, when any changes are made to the technological process. Cables from different batches from different workshops are re-wired vibirkovo. Changes in the physical parameters of the cable, electrical conductivity, support are controlled. The integrity of the weave is being reconsidered - why did not the elasticity start to break out? Changing the testing of the voltage and conducting the constant modification of the characteristics of the cable, it is possible to predict the future mill in 10, 20, 50 years of operation in different minds.

Actual term of service

The very showman of the Vlasnik received the most cicavia. At the same hour, in practice, here the greatest diversity, shards of the real term of service electric darts to deposit in the presence of rich factors, yakі buli pererakhovanі trohi vishche. Even though the wiring was carried out correctly, the installation was done with the help of the necessary electrical engineering SNiP, the tightness of the tension does not outweigh the rozrahunkov, and so on, the wiring can last a hundred years. But if only one of the numerical minds is not beaten, the term of exploitation is short.

Bagato sho lie down the right choice foreign automatics. For example, a succulent vein with a 2.5 mm peretina vitrimaє strum up to 25 amperes. The machine for 16 amperes vib'є earlier than the lower one, such a wire would be heated up due to the increased voltage. Automatic machine for 40 amperes should continue to work, and the cable will simply melt when a stream of 32-35 amperes is passed through.

One more example: a cable to live a trim socket in the kitchen, to which it is connected to a low-frequency-pitch, a cooker and an electric kettle. In normal minds, tsі pristroї mayzhe nikolay do not work at once. But all the stench can be turned on, let it go for a short hour, for an hour of preparation, or for a great family urochist. Change the term of the electrical wiring service for a short period of time.

Overheating - okrema theme. Vіn can be yelled like a relocated vanity, and y zvnіshnіmi officials. For example, already after divorce cable lines a fireplace was installed near the apartment, and as a result, the conductor stumbled at the uninterrupted proximity to the dimar. Constantly heating in the worst weather will lead to a wicked weave (and, obviously, up to short chirp), for the best - to change the physical ones, to change the term of yogo exploitation.

This is one of the first power supplies, which are destroyed when wiring is replaced within the framework overhaul at the dwelling place. In general, the opinion on the new part is unambiguous - mid. There are enough reasons for this - at the midi lower nursery opir, Higher electrical conductivity, may be higher than the boundary strength for tightness with the same area of ​​the cut. That term of service medium darts more - 20-25 years (nominal) versus 15-20 for aluminum. Ale є deakі nuances.

As soon as I change, then I will fix everything. First, z'ednannya of copper and aluminum lived - weak spot at the conductor navit for the choice of glue from the third metal (straight twisting at different times is unacceptable, shards of copper and aluminum make a galvanic couple). In a different way, a partial replacement with a method of zbіlshennya wiring for yakіys vantagenіy dilyantsі (for example, in the kitchen with a complete set) by-button technology) will not give anything. A copper cable, laying by the wall without a middle in the kitchen, right on its own, it gets in the way of the advancements, aluminium, which goes in housing shield at the rozpodіlnu box - nі.

One more moment that deserves respect is the economical dosіlnіst of carrying out such a replacement. Midna still lived dearly for aluminium, and, as if the houses were not “packing” the flooring, so that the wiring was really strong, there was no sense to think about it, only to the one who “aluminum viyshov z modi”.

What is the cost of trivality of exploitation - є booths, in some actual term, the service of aluminum wires is stored already for 50-70 years, and carrying out in them will not require replacement. Like it was before, everything was left to fall in the form of specific minds.

So scho by-butovy technology, and the budget for the repair of facilities, then it is possible to change (as a matter of fact, such a need) and for aluminum. The only aspect is that it will be necessary for each person to carry out their own prophylaxis every two or three years. The essence of її polagaє in the pulling up of tight screws in vimikachs and rosettes. Aluminium, ductile, zusilla from the side of the screw (or the contact maidanchik is pressed against it) to cause deformation, the contact will loosen for an hour, and the worst contact is the most wide-ranging cause of fire due to electrical wiring.

I think that all the owners of apartments and houses sooner or later start to complain about the replacement of electrical wiring, the rationale for winning, advantages, shortcomings, terms of exploitation and so on. Today we will try to make it more accessible and more understandable to explain to our readers all the pluses and minuses of aluminum wiring, as well as figuring out what varto її minyati on the midway, chi ni.

Perevagi

From the very cob it should be noted that the work carried out for aluminum is not the best and the least and cannot boast of some prominent merits, in parity with other species. But this type of electrical wiring and installations in most of the old houses and apartments (Khrushchevs) are the same. And so, we sing for the cob on the front of the first mind:

• lightness (aluminum may be less than equal to other metals, as vicarious in electricity as conductors);
• resistance to corrosion (metal is instantly oxidized when it is blown in again, quenching the smelting, as it protects the wound from further corrosion).

Significantly, the rules for the installation of electrical installations (PUE) fence the use of aluminum wires and cables with a span of less than 16 square meters. millimeters. And when oxidized, the indicator significantly changes and the area of ​​the cable to conduct the strum changes its blackness. All the same, it’s better to bring it to the bottom.

Today, aluminum in electrical wiring is most often won by the great power cables, de duzhe important factor є vaga that varіst material. Savings in this way can be even more expensive - cheap aluminum metal - and the amount of vicorous material all the same allows you to spend less money with other types of wires. The right butt of this one is great popularity, they lived like a kind of made from aluminum. For repeated cable laying, this conductor is one of the most suitable ones. Tim is no less, Novobudovs have not had aluminum wiring for a long time, and there are reasons for it.

Nedoliki

There were few shortcomings in a similar type of wire:

• flatness to metal (aluminum may be power-stretched, it may have a negative impact on the development of a screwed dart);
• brittleness of aluminum (in the process of old and trivial operational term, the darts will break, especially with partial stresses and overheating).

All the appointed shortfalls of this world in the end result in the shortcomings of the entire system of electricity supply and a small term of operation. For power supply, skilki є aluminum electrical wiring, you take away the final answer - the term of service up to 25 years.

Dekіlka important facts

Also, in order to see why aluminum is not carried out safely, it is recommended that you familiarize yourself with the following facts:

1. In line with international standards, aluminum electrical wiring has long been recognized as potentially fireproof.
2. Vipadkas have already been repeatedly recorded, which caused the death of people.
3. At the houses and apartments, the aluminum electrical lines were broken, the fluctuations after that were fixed 55 times more, lower with the other electrical wiring.
4. This type of breeding is still allowed before operation, but only on a watch basis.
5. Zaboronyaєtsya z method zabіgannya spalah zadnuvati midna and aluminum wiring at once.

All these factors can become a reason for borrowing a home measure and, as a result, ending up in a house or an apartment. At first glance, this type of electrical wiring is not safe, you can see it on the video:

An example of an unsafe situation

Chi varto minyati old spent?

On tse nutrition vіdpovіmo unequivocally - Yes! One of the nuances, as if to speak in favor of replacing aluminum wiring, is the maximum interest, as it can be seen. Navit stovіdsotkovo functional wiring, yak zastosovuvalsya earlier, to the current world do not show the vanity. І install thicker electrical wiring (z great peretina) fenced, the shards can be brought to borrow.

The medium cable can be more modern, more durable and fire resistant. Therefore, the replacement of aluminum wiring is on the right, which is worth it. Tim more, so you will get the best option.

Another aggravating process can be the financial side of the food. or apartments can run into a tidy bag. Also, for a new replacement of the old wiring, it is necessary to re-drill all residential premises. Yakshcho vi is not “Mayster on all hands” I do not get the same time, the tsom vipad є vihid - can be a couple of skewing lines, a shock of the stench took on the main Navantazhnnye Elektromezhі, and aluminіnіyvі lingy, Vikoristuvati for lighting. Until then, new darts can be hidden under the plinth or at the door. In this way, reduce the burden on aluminum wiring and make it safe and superior.

As if you yourself will take on this laborious process, get ready for great vitrates. First, necessary. Good, how do you have such a friend or relatives. Inakshe - tse new vitrati. In another way, see the whole hour. It is important for the modern world to learn. And thirdly, be prepared before you can spend less than an hour on repairs, less cleaning up after a new one.

But all the same, there are life situations, if it is impossible to change the electrical wiring. In this case, it is necessary to know the most important rules for choosing aluminum wiring.

Key considerations before operation

Even so, you all the same vyrishil vikoristovuvat in the apartment or private house aluminum wiring, insure this way:

1. Cross section not less than 16 sq. mm (we already talked about it, but we won’t tell fortunes).
2. Whisk the contacts (as well as a special oil, as a way to improve the oxidation of the contacts and save the low level of the transitional support).
3. Vykoristovyte zvaryuvannya alyuminієvykh elektroprovodіv u pink boxes(It is necessary to spend a lot of time and finances, it is rare to win). If you don’t beat the robots on your own, follow the work of the electricians at your booth and control the process to get the necessary technical moments.

So you will be well aware of the maximum potential for aluminum darts different cut. All data given in the tables:

Remember, regardless of the type of wiring at your booth, follow the rules of fire and electrical safety, as well as the rules of operation. So you can secure your family and your own houses in the face of unfortunate experiences and unfortunate experiences. We recommend that you look at one more video

Most of the rich-surface buds are seen up to 60-80 years old. At that hour, aluminum electrical wiring with one ball of PVC insulation was laid almost everywhere. Electricity supply was insured at the minimum energy supply. It was given, so wait. But in the 90s, a new era came, the era of tight electric shocks, to which the old ones seemed unprepared. Seriously start thinking about the reconstruction of a person at that hour, if the electrical wiring starts to be empty.

What is the service term for duralumin wiring?

Aluminum electrical wiring is insured for 15-20 years of operation. Є chimalo spores, yakі dvіchі crossed the line. What are the traces of a successful aluminum conductor?

When the current electric appliances are old, and the wiring is so worn out on the border, as a result, the aluminum heats up strongly, dries, becomes brittle, the insulation grows dry and sags. Nayimovіrnіshe, tse bring to a short zamikannya. When replacing chandeliers, rosettes, vimikacha, aluminum often breaks at the ends of the roots, vibrating annoyance. Aluminum under the screw at the contact z'єdnanny maє power of thermal expansion. In the future, through parts of the expansion, the conductor is deformed, as a result, the contacts weaken, causing the gap, and through the filthy contact, the conductor can break.

Advantages of copper wiring

The middle electrical wiring is resistant to virginity, does not break off, after an hour of hard work it improves the electrical conductivity, oxidation of the terminal wires does not interfere with the performance. Warto respect that, according to the new rules of budіvelno-assembly work, all-inclusive mid-wire electrical wiring is laid, aluminum is not taken into the rozrahunok through the refurbishment of more sub-dollars.

Folding reconstruction from the replacement of electrical wiring, chi chastkov povnu chi chastkov, independent zdijsnit vdaetsya not skin. If you don’t get the strength to transform, ask for the first electrician, what you spent, not a rajah. To competently replace the electrical wiring, hire a troublesome electrician.