What should not be included in the surge protector along with the computer?

Recommendations

If you have already decided to disassemble the filter, then at the same time check all other components for serviceability. Quite often, it is not fuses and buttons that fail, but a varistor, which is also needed to protect outgoing lines from high voltage.

Many people do not know the rules for operating network filters and connect them to uninterruptible power supplies, which leads to breakdown of the protective circuits. Also, you cannot connect the filters to each other, because a series connection will multiply the current in the ground phase, and the voltage power will increase above 3.5 kW. This applies specifically to devices with filters, and not just extension cords with a power button.

In addition, it is very undesirable to connect devices with high input voltage to simple models - not only will this not save them from burning out, but it will also quickly damage the filter itself.

How to repair a surge protector, see below.

Source

How to check the interference filter on a washing machine

• We check all contacts in pairs with a multimeter, the resistance of which should be 680 kOhm;
• The input resistance of the plug is measured. The value should be as in the first case. Some upward deviation is allowed;
• It is difficult to check the serviceability of capacitors, but it is possible to measure the capacitance between different inputs. The indicator is within 0.47 µF.

Expert opinion

It-Technology, Electrical power and electronics specialist

Ask questions to the “Specialist for modernization of energy generation systems”

What will a surge protector protect against? As for the cable length, standard options for extension cords or surge protectors allow you to connect devices at a distance of 1 to 10 meters from the wall outlet. Ask, I'm in touch!

What criteria are important when choosing?

If the filter that was inside before breaks down, it’s easier to just pull out the old device and pick up an analogue in the store. Or take advice from sellers. You can tell about the model of the machine you are using. But most consumers prefer extension cords because they are convenient.

Parameters that matter

They are not as difficult to figure out as it seems at first glance.

• How many ports or outlets are used? To do this, you need to think about how many operating devices will be constantly nearby. The number of cables throughout the apartment will be reduced if several devices are connected to one extension cord. This contributes to a decrease in the overall level of safety. The principle of operation does not matter.
• The length that the surge protector must have. Its usual limit is 1.8-5 meters. Three meters will be enough in most situations. Specific numbers depend on where exactly the washing machine itself is located.
• Maximum load indicator. Thanks to this parameter, it is easy to find out what maximum burst of energy the filter can withstand. 2500 J is the standard level for professional-type filters. The basic version is 960 J. Some models have additional lightning protection, but such functions only increase the cost. Advanced or universal protection is the optimal solution for ordinary buyers.
• Response speed. An indicator that plays an important role. It will determine how quickly the operation of the washing machine will be blocked. And how much damage a jump can cause to internal components.
• Purpose of the structure. In particular, you need to understand what specific equipment the filter is intended for.
• Types of fuses used, their total number. Fuses are no less important. Options with several are the most convenient. The main one gets the fusible function. The rest are made thermal, with a quick response, auxiliary.
• Using various indicators in work. Indicators make it easier to identify operational stability. The LED light will be on if everything is ok. If not, then there will be no signals.
• Availability of additional instructions. This indicates that the product is of high quality. It is recommended to give preference to well-known brands that have already been tested in practice more than once.

A high quality extension cord cannot come with a low price. If the device costs too little, perhaps this is the simplest option, without additional protection.

Criterias of choice

In this case, first of all, you need to pay attention to the maximum pulse overload current and the maximum current consumption, the value of which should be 2-3 times higher than that of the washing machine (calculated from the power). You can also temporarily replace a broken filter with an external auxiliary filter, which itself is connected to the mains via an outlet, and all electrical appliances are connected to it.

You can also temporarily replace a broken filter with an external auxiliary filter, which itself is connected to the mains through an outlet, and all electrical appliances are connected to it.

What varistor is in the surge protector?

V1 is a varistor

, its marking “471” means that its operating voltage is 470V, and the larger its diameter, the more energy it can extinguish without exploding.

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How to repair an extension cord yourself?

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Surge filter button - review and repair

A surge protector is a useful device that protects sensitive electrical appliances from power surges and impulse noise.

Externally, a household filter resembles a regular extension cord, but it is additionally equipped with a built-in unit that absorbs all frequency fluctuations.

To protect against large surges, the device is equipped with a fuse, which in case of critical overloads instantly disconnects electrical appliances from the network.

Like any other devices, surge protectors can break down during intensive use.

First, when turned on, it begins to spark, heat up and make strange sounds, and over time it stops working altogether. If the filter is used frequently, the button may wear out physically or become mechanically damaged.

Attention! If the surge protector button begins to spark, heat up and/or crackle, further operation of the device is unsafe! You should immediately disconnect the filter from the mains to avoid fire! For safe operation of the filter, you need to check the condition of the switch contacts and, if necessary, clean them of carbon deposits. Let's look at the button diagram of a typical surge protector:

Let's look at the button diagram of a typical surge protector:

As can be seen from this diagram, there is nothing complicated in the design of the surge protector power button, so you can repair it or replace it with a new one yourself.

Repair - what to do if the surge protector button is broken

If, when you turn on the surge protector button, extraneous sounds begin to be heard, which are accompanied by the smell of melting plastic, the device should be immediately de-energized. Next, you need to disassemble the surge protector and check the condition of the contacts on the switch.

To do this you will need the following tools:

• soldering iron,
• crosshead screwdriver,
• tester,
• sandpaper-zero.

If the contacts are burnt out, the tester readings will confirm this (in this case, there will be no voltage at the output from the button in the “On” position). To clean the contacts, the switch needs:

1. Disassemble the surge protector housing by unscrewing the mounting screws;
2. Unsolder the button and remove it from the filter housing. The button is held in the housing by plastic clips, which should be carefully squeezed out.
3. Disassemble. To do this, you need to disconnect the key by picking it up with a flat-head screwdriver.
4. Take out the contacts and clean off any black deposits.
5. Assemble the button. After this, we assemble the button in the reverse order, install it in place and solder it.

If the contacts have burned very badly and melted the plastic of the switch housing, it should be completely replaced.

To do this you need:

1. Disassemble the filter;
2. Unsolder the button;
3. Remove the switch from the housing;
4. Install a new one in its place (sold in radio parts stores, costs about 30 rubles);
5. Solder the button and assemble the filter housing.

Often the button on the surge protector does not work due to mechanical damage. The most common case is the breakdown of the latches that hold the switch key in the housing. In this case, it is not necessary to buy a new button - the latches can be restored.

To do this you will need the following materials and tools:

• screwdriver (or drill) and drill with a diameter of 3.5 mm;
• toothpick;
• cotton swab;
• side cutters.

The process itself is very simple:

1. A through hole is drilled in the key into which a cotton swab is inserted (it will act as a latch).
2. A toothpick is inserted inside the cotton swab for greater rigidity. On both sides, the improvised retainer is trimmed with side cutters so that on each side it protrudes approximately 3-4 mm.
3. Now all that remains is to insert the key into the body - to do this, just slightly bend the sides of the seat with a screwdriver.

VIDEO INSTRUCTIONS » alt=»»>

How to make a surge protector directly, without a button

If the old button has completely failed and you don’t have a new one at hand, you can connect the surge protector directly, turning it into a regular extension cord.

To do this you need to do the following:

1. Open the mains voltage filter housing by unscrewing the mounting screws with a screwdriver;
2. Unsolder the wires from the button and solder them according to color, bypassing the button;
3. Insulate the joint with insulating tape or heat shrink;
4. Assemble the extension cord and test its functionality.

To avoid the surge protector switch problems described in this article, consider the maximum power rating of the connected load and the maximum load current when selecting a device.

VIDEO REVIEW » alt=»»> If the total power of the equipment exceeds the maximum permissible filter power, then you should opt for a more powerful model.

How to find out the maximum load power

Each surge protector can withstand a strictly defined load. This parameter is set at the production stage of the device.

Network filters are classified into three types, each of which is designed to perform strictly defined tasks. Budget devices are used mainly as extension cords. Universal filters are suitable for domestic purposes, while professional filters are used to connect sensitive equipment.

The type of device determines the maximum load power. This parameter varies from 0.09 kilojoule to 2.5 kilojoule and above. The maximum load power is usually indicated on the device case and is presented in kilowatts. For standard filters used to perform household tasks, this figure is 2.2 kilowatts at a current of 10 amperes. There are also models with a rated load current of 15 amperes, which are intended for modern technology.

Can it be repaired?

Depending on the cause of the breakdown, surge protectors are quite suitable for repair; the main thing is to have at least a little experience working with a soldering iron and a screwdriver. Before you begin, carefully inspect the outside of the appliance. Sometimes, to fix it, you don’t even have to disassemble it - it will be enough to replace a burnt or broken plug. When there are no external signs of failure, but when under load it makes strange sounds, then most likely it is the chokes (pulse voltage absorbers in the form of a coil) cracking.

When you need to change the fuse, this is also not a problem.

If the button does not work when turned on, the backlight does not light up, it is also not necessary to solder it right away - you can simply pull the switch body out of the socket, clean the contacts and carefully put it back in place

The button does not turn off

If the fuse is blown, then the button (the one without an LED, separate from the “on/off”) stops pressing and constantly sticks up, which means emergency mode without electricity supply. It is enough to unsolder it or unscrew it (depending on the model) to take it to a radio parts store, where the seller will pick up exactly the same one. It happens that the model you need is not on sale - no problem, you can connect the wires directly with your own hands without buttons. Then, instead of a surge protector, you will have an excellent extension cord, which will be quite useful for charging low-voltage devices, lamps and radios.

The light is flashing

The power switch button may turn off spontaneously or become completely stuck in the “on” position. Sometimes the power indicator starts blinking for some unknown reason. This also indicates that it is most likely time to clean the contacts. After disassembling the case, you need to remove everything that covers the button, unscrew the screws from the printed circuit board (to turn it over) or unsolder the power cable and button legs. After this, you can pull out the switch box and use a flat-head screwdriver to unhook the latches that hold it in the socket.

Inside there are contacts made of springy steel. Over time, they become covered with a layer of soot and oxide, so the contact area begins to heat up more than usual. If you clean them with sandpaper or a file, the button will no longer overload and turn off. At the end, you can treat the stripped areas with alcohol and blow them out, and then assemble the switch and solder it back.

Sparks

If the surge protector sparks when turned on, this indicates, rather, that the insulation of the internal contacts has been damaged, rather than that some part has broken. Look inside, check and, if necessary, use a tester to call where the wires might have come loose. If found, take more solder, because cheap Chinese factories often suffer from indecently flimsy soldering quality and savings on literally everything, including tin.

Keep in mind that sparking and cracking can occur not only due to a defect in the surge protector, but also due to a weak socket that is not designed for heavy loads. To check, find a good outlet or disassemble an existing one (after de-energizing it) to look for problems with the twists in the reconnaissance boxes (especially for Soviet aluminum ones).

Other breakdowns

Mechanical damage to the switch latches due to breakage and melting of the plastic is also possible. In this case, a hole is carefully drilled in the button body and a cotton swab or toothpick is inserted, acting as a latch that is inserted into the groove. After these simple manipulations, you can return the switch to its place. The surge protector is ready for use again!

If there is no voltage, then look for the section mark on it and buy a replacement of the required length. Next, you should disassemble the plug and body and solder the wires to the contacts, not forgetting to first properly clean and insulate them after soldering.

How to choose a surge protector for your PC and other devices?

We all understand perfectly well that with large voltage drops, equipment may not be able to withstand it and fail. To avoid this, surge protectors are used. I will write about how to choose a surge protector for home use.

It is better to use surge protectors in any home, since almost everyone has many electrical appliances. They can burn out due to voltage surges, which a person is not always able to notice.

[aesop_image imgwidth=”500px” img=”https://computerinfo.ru/wp-content/uploads/2016/07/setevie_filtri.jpg” align=”center” lightbox=”on” captionposition=”center”]

Why are surge protectors needed?

They are designed to protect against certain types of interference, for example, voltage surges, that is, this means that over a certain period of time the optimal voltage changes. This can happen due to the connection of many powerful devices to the network. Pay close attention to what you connect and what might happen.

Surge protectors can protect equipment from lightning strikes or grounding problems. There is protection against interference that may be caused by other devices located close to each other.

What can surge protectors protect?

I would apply it to any equipment, that is, computers, laptops, other equipment such as refrigerators, televisions and other things. Can also be used for game consoles.

Types of network filters

Although these devices do not differ in appearance, they have a number of characteristics with different levels of protection, which may even imply turning off the equipment to save it.

Here, for example, are filters of the Essential type. The simplest and most inexpensive devices. You can connect cheap or old equipment to them.

Devices of the Home/Office type are already more advanced, as they have increased protection. They can be used at home without any problems.

Finally, the Performance type, already more expensive, but also more secure filters, expensive equipment is connected to them, which are very sensitive to the slightest interference in the network.

There are more expensive surge protectors that have higher protection ratings. If a regular filter can absorb approximately 960 J, but an expensive model can absorb 2500 J. It is clear that the more expensive the filter, the better it will protect.

It is worth noting that such filters are provided if the outlet in the house is grounded. This is not the case in ancient houses, which is why there is less protection. In any case, the equipment must be connected to a surge protector, preferably a good one.

Is the filter a fuse?

The surge protector is very fast because it works before the lightning strikes the house. Circuits located inside the filter quickly analyze what and how to do - dissipate or absorb excess energy. As I wrote above, a more expensive filter will turn off the equipment so that the electrical impulse or interference does not ruin it.

Some filters have a disconnect switch that, in the event of strong interference, simply turns off the filter; it must be turned on again to continue operation. Similar to the principle of a plug on a meter or in an electrical panel.

Cheap filters are like a simple fuse; if interference reaches it, then the surge protector is no longer suitable for use, but it does not protect the devices connected to it well.

Surge filters also have a warranty. Simple models can work for 3 years, and more professional ones up to 5 years, and maybe more. If the device breaks down, the manufacturer must repair it under warranty.

How to choose a surge protector, what to look for?

When choosing a surge protector, you need to highlight several characteristics

First you need to pay attention to the wire. The device must have a fastening so that the cord can be routed normally

This is necessary to avoid a bunch of wires scattered everywhere. There are models in which the wire can be rotated 180 degrees, which allows you to position it as you please.

The cord has lengths, for example, 3 meters, so they are used as an extension cord. Some models have the ability to be attached to a wall.

Surge protectors may have different distances between sockets, so choose depending on what devices you will connect.

You also need to pay attention to the number of sockets, which is very important if you connect few or many devices. It would not be bad if the filter had special curtains that would protect children from unnecessary touches

Accounting and tax accounting for equipment write-offs

The cost of the equipment at which it was reflected in the debit of account 07 “Equipment for installation”, when written off, is generally transferred to the financial results account (Order of the Ministry of Finance dated October 31, 2000 No. 94n):

Debit account 91 “Other income and expenses”, subaccount “Other expenses” - Credit account 07

If equipment is written off based on the results of an inventory and identified shortages, its value is first debited to account 94 “Shortages and losses from damage to valuables”, and only then to the account of the source from which the shortage will be covered:

Debit of account 73 “Settlements with personnel for other operations” - Credit of account 94 - if the guilty person was identified

Debit account 91 – Credit account 94 – if there are no guilty parties or if the court refused to collect from the employee

If the equipment has already been transferred for installation, but is then written off, in the above transactions, instead of account 07, account 08 “Investments in non-current assets” will be used.

Expenses for the liquidation of fixed assets being decommissioned, as well as expenses for the liquidation of other property, the installation of which has not been completed, are taken into account as part of non-operating expenses (clause 8, clause 1, article 265 of the Tax Code of the Russian Federation). If the equipment was lost, then the fact of the absence of the perpetrators must be documented (clause 5, clause 2, article 265 of the Tax Code of the Russian Federation).

Budget accounting

Having considered the issue, we came to the following conclusion: Expenses for the purchase of an extension cord can be made both through Article 310 “Increase in the cost of fixed assets” of KOSGU, and through Article 340 “Increase in the cost of inventories” of KOSGU.

The final decision to classify the acquired property as inventory (fixed assets) can be made by competent officials of the institution within the scope of their powers based on the specific characteristics of the extension cord, taking into account the expected conditions of its use (operation).

Causes of UPS failure

During operation, uninterruptible power supplies may suffer due to overload, insufficient cooling and exposure to the external environment. Among the main reasons for UPS failure for a computer or other electronic devices, the following are worth highlighting:

• Contamination of the board and internal surfaces, causing deterioration in the heat dissipation of parts and short-circuiting of current-carrying paths.
• Depletion of battery life and loss of capacity.
• Drying of electrolytic capacitors, causing malfunctions in the operation of control and power units.
• Contamination or drying of the cooling fan lubricant and, as a result, slowdown of rotation or jamming of the fan.
• Failure of the inverter as a result of overload or prolonged operation at high load with poor cooling.
• Device failure due to excessive input voltage.
• Problems with the input power circuit.

Some of the problems can be solved without special material costs, some require too expensive repairs and become a reason for writing off the device. Let's look at typical UPS problems that their owners encounter.

What might beeping in the power supply?

The unit may squeak when the winding of the RF choke or transformer is weakened. Another reason why the power supply beeps is due to a faulty capacitor, overheating, dust, or faulty cooling. Squeaking also appears when the maximum load increases, and then the conversion frequency drops into the audio range.

The power supply consists of two power supplies: a standby voltage of +5 V with a separate pulse converter and a low-power transformer, and a second power supply of +5V, +12V, -12V.

xTechx.ru

A surge protector (Surge Protector - eng.) is an inexpensive and fairly simple device for protecting electronic equipment from network, high-frequency, low-frequency, impulse noise, overcurrent, and also from short circuits.

There are elements for protection on a special board in the filter housing.

To protect against pulse currents, varistors are used, which are connected in parallel to the connected equipment.

In the event of a sharp pulse jump, the resistance of the varistor increases sharply and the pulse energy is converted into thermal energy (which in some cases breaks the varistor), protecting the equipment if the noise was completely absorbed by the varistor.

To improve filtering of impulse noise, “gas dischargers” are sometimes used in conjunction with varistors (seen in Pilot GL, Pro). They can also be used separately.

High-quality surge protector:

An LC filter is used to filter out high-frequency interference (radio interference). This type of interference can interfere with the operation of electronic equipment (mainly high-precision equipment).

They are created by electric motors, welding machines, generators, electric dischargers of gas stoves, etc. Filtration efficiency is measured in dB. The higher the number, the better.

The filter may include inductors and capacitors (together or separately does not matter). They help improve durability, stability, and reduce the load on internal filtering systems of audio-video and computer equipment. Also, surge protectors use “button” type current limiters, which cut off the power if the permissible current consumption is exceeded

Although in cheaper versions, the tie is not on power consumption, but on temperature

Also, surge protectors use “button” type current limiters, which cut off the power if the permissible current consumption is exceeded. Although in cheaper versions, the problem is not on power consumption, but on temperature.

Also, in many types of filters, additional fuses are used, which in addition insure varistor protection. If they are triggered, the device must be opened and the element replaced with a new one.

Does the filter protect against interference if there is no ground connection at the ground pin?

For a good surge protector, it is not so important whether there is grounding or not. Still, the filter specifications must indicate “3-phase protection” or “phase-zero, phase-earth, zero-earth protection.” Still, the filter specifications must indicate “3-phase protection” or “phase-zero, phase-earth, zero-earth protection”

Still, the filter specifications must indicate “3-phase protection” or “phase-zero, phase-earth, zero-earth protection.”

This will protect your equipment from pulse surges and means that a varistor is soldered in parallel to each of the phases. Even if there is no grounding contact, “phase-zero” will filter pulse surges.

It is noteworthy that the LC filter, if present, does not need a ground. It will filter high-frequency interference as normal.

Overload and short circuit protection - will function normally and without grounding.

The best surge protectors with a high level of protection

Such models are capable of protecting connected devices from electrical network problems of almost any type. They are expensive and are used to provide power to expensive and sensitive equipment.

Taga Harmony PF-1000

5.0

★★★★★

editorial assessment

100%

buyers recommend this product

The model is equipped with seven sockets, five of which receive “purified” voltage, and two are used to connect equipment that does not require filtering. The function of monitoring the correct power phase will facilitate the connection of devices.

There is a voltage indicator on the front panel, which allows you to verify the stability of the network before starting use.

The model is designed to improve the quality of electricity by removing noise. Additional features include protection against overload, short circuit, overheating and surges.

Advantages:

• Ease of use;
• a large number of sockets;
• maximum load power - 3000 W;
• durable body;
• pointer voltmeter.

Flaws:

• high price.

Taga Harmony PF-1000 will be an excellent purchase for connecting audio and video equipment. With its help, you can ensure stable operation of your home theater or music center.

Dynavox X7000

5.0

★★★★★

editorial assessment

97%

buyers recommend this product

The main feature of the model is the presence of a display to display parameters such as mains voltage and power consumption.

The user has access to 6 sockets, two of which do not support the filtering system and are designed to connect the most powerful consumers. The device effectively suppresses interference and reduces the mutual influence of system components.

Comfort during use is ensured by remembering the last settings, indicating phase incorrectness and automatic shutdown at operating currents above 10 A. The maximum total power is 2300 W.

Advantages:

• informative display;
• Ease of use;
• stable work;
• status indication.

Flaws:

• heavy.

Dynavox X7000 will be useful for providing electricity to demanding equipment. This includes personal computers, music equipment, televisions, etc.

Koogeek Smart Outlet O1EU

4.9

★★★★★

editorial assessment

95%

buyers recommend this product

The main features of the model include the ability to control using voice and remote control.

The device supports a Wi-Fi connection, which allows you to adjust its operating modes from a distance. To do this, the manufacturer's application is installed on the owner's smartphone.

The filter housing is made of durable, non-flammable plastic. Built-in protection against overload, short circuit and voltage surges guarantees stable operation of electrical appliances. Additional features include scripted operation and energy saving mode.

Advantages:

• USB support;
• convenient control;
• wireless connection;
• voice recognition;
• maximum power - 3000 W.

Flaws:

• heavy weight.

Koogeek Smart Outlet O1EU can work in a smart home system or be used by active smartphone owners. A reliable and modern solution to ensure stable operation of household appliances.

Supra Mains Block MD-04EU MK3

4.9

★★★★★

editorial assessment

93%

buyers recommend this product

The body of the model is made of milled aluminum, has small dimensions and can be installed both on the floor and on any other flat surface.

The filter is not affected by radio frequency interference and has a maximum load power of 2300 W.

Number of sockets - 4, permissible current - 10 amperes. The device does not introduce restrictions into the signal, which is extremely useful when powering audio equipment, as it allows you to keep the sound quality unchanged.

Advantages:

• durable body;
• compactness;
• ease of fastening;
• noise immunity.

Flaws:

• no cable included.

Supra Mains Block is worth purchasing to provide electricity to devices and equipment surrounded by powerful devices. The right choice for owners of musical equipment or productive computers.

Surge protector extension cable SVEN Fort. Review

• March 19, 2016 at 2:37:17 pm
• 6623

We share our impressions of the SVEN Fort surge protector after a year of intensive use.

But let's start from the beginning.

The design of the filter turned out to be very successful, so this extension cord will fit into any interior. The pleasant matte surface of the case not only looks beautiful, but also has practical value. The matte finish does not show scratches that inevitably occur during use.

On the front surface of the SVEN Fort filter there are 5 Euro sockets with grounding contacts, a common power switch, individual power switches for each socket, an indicator of the presence of grounding and serviceability of the protection.

On the back of the case there are special holes for attaching the filter to a wall or horizontal surfaces, for example, to a shelf

Much attention is paid to the reliability of the SVEN Fort network extender and the safety of its operation

Installation of socket blocks is carried out using solid brass bars, which conduct current well and dissipate heat. The rest of the installation was done with copper wire. The filter itself is mounted on a printed circuit board, which increases the reliability and manufacturability of the product.

To increase safety, double-pole power switches are used. Thus, when you turn off any of the switches, both wires of the outlet are physically disconnected from the network.

The second level of protection is the presence of a fusible and bimetallic thermal fuse that protects the line filter from a short circuit in the load circuit and when the permissible load power is exceeded.

The network filter uses an effective network voltage filtering circuit that can protect equipment from failure when high-voltage impulse noise and high-frequency components appear in the network. To monitor the operation of the circuit and the presence of a connection to ground, two LED indicators are provided.

• Two-pole general switch with built-in lighting;
• Two-pole individual switches with built-in lighting for each socket;
• Indication of serviceability of the protection circuit and the presence of grounding;
• Several powerful varistors to protect the load from impulse noise;
• Second-order LC filter for effective suppression of high-frequency interference;
• Bimetallic switch to limit the maximum permissible load current;
• A fuse to limit the varistor current when exposed to impulse noise, which once again increases operational safety;
• Movable curtains on sockets for safety against unauthorized entry of foreign objects into the housing (child safety);
• Availability of mounting holes for wall mounting;
• Impact-resistant, non-flammable housing made of ABS plastic.

As stated at the beginning of the review, this model of surge protector extender has been in active use with us for more than a year. The filter is covered with a layer of dust and scratches, but it works properly. It seems to us that this is one of the most successful filters presented on the market, including by SVEN.

Based on the combination of qualities and characteristics, the Sven Fort extension filter can be classified as a high consumer category of product, but its price is very affordable.

. And we never had to press this bimetallic fuse button.

SVEN Fort can be purchased with different lengths of power cord.

Our rating:

+ high safety and protection, several levels of protection, good design, quality materials, potentially long service life, affordable price;

— not detected during the year of operation.

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Model range of Pilot network filters

The product range of the domestic company ZIS is represented by several series. They have different levels of protection and a range of functions. Pilot surge protectors are designed for consumers with varying purchasing power and meet any voltage stabilization requirements. The equipment range is represented by the following lines:

• S series;
• L series;
• GL series;
• Pro series;
• Bit series;
• T series;
• Single series.

Each line has a certain functionality and degree of protection.

Housing made of impact-resistant, flame-retardant plastic

Series S

Devices of this modification belong to the budget class and have a basic set of filtration tools. The design of this model provides the following means:

• Varistor. Designed to smooth out impulse noise. They arise when using tools and equipment whose operation is associated with the formation of a spark: drill, hammer drill, etc.
• Thermal fuse. Protects the device from overheating when the permissible power is exceeded.
• Fusible and thermal bimetallic fuses prevent short circuits from overload.

The surge protector has five Euro-type sockets with grounding contacts and one for connecting old-style plugs. Models with the designation Max differ from the basic modification by increased power up to 3.5 kW and a current of 15 A.

Advice. All ZIS products are developed taking into account all the shortcomings and parameters of domestic electrical networks. Accordingly, it is fully adapted to work in such conditions.

Series L

Has all the basic means of protection. The difference is the installation of three varistors, a filter to eliminate high-frequency capacitive-type interference. The light indication indicates the current state of the device. The body is made of high-strength and refractory plastic. The rosette group is located in one row.

GL Series

It has the same protections as the S and L series models. An inductive-capacitive filter is used to stabilize high-frequency interference. The gas discharge limiter provides protection against surges during lightning discharges. The sockets are covered with special covers to prevent electric shock to the child.

Pilot surge protector – protection at a reasonable price

Pro Series

The surge protectors in this series are premium class and have advanced protection features. Network diagnostic tools automatically determine the presence and absence of a ground loop. Diagnostics is intended for installation and subsequent stabilization of the phasing of the connected plug. The contact group is made of high-strength steel, which ensures reliable contact of contacting parts. One of the sockets is made of the Gadget Parking type, which allows you to connect one plug with round contacts or two with flat contacts at the same time. Excess cords to be connected are placed in a special holder.

Bit Series

Bit line devices have only one socket with grounding contacts, do not have an extension cord and are installed directly into the socket. This modification has all the anti-interference features of the L series models.

Series T

The design and degree of protection are similar to the Bit series. The difference lies in the number of sockets, there are 4 of them in this line, and two USB ports for charging mobile phones, smartphones, and MP3 players. The device is designed for a total connected power of 3.3 kW.

Single Series

This model is equipped with one socket with grounding contacts. The configuration and design are similar to the Bit series. The device is equipped with means of protection against the appearance of 380 V in the network. When the voltage exceeds peak limits (increase or decrease), the supply of electricity is automatically stopped and resumed when the parameter stabilizes.

ZIS products meet all GOST requirements. Each series has an optimal price/quality ratio. Due to this, Pilot surge protectors are in high demand and popularity among consumers.

How to take it apart correctly?

Disassembling a regular Pilot filter begins with unscrewing the screws, as, indeed, in most other cases, but in some non-separable models the housing may be without bolts using rivet screws. Usually the fastener is installed on the back, it is often covered with factory stickers, but it can also be found on the front, right in the slots of the sockets. For additional fixation, there are plastic latches at the junction of the two halves of the case. When opening, do not make sudden movements or use force so as not to damage the structure. If the device has never been disassembled, there will be a warranty seal on the case.

You can try to push out just the button using a flat-head screwdriver, because in such devices, most often the contacts in the switch become clogged with dust, or the cord itself breaks.

Next, use the tool to diagnose and repair components. You will need:

• soldering iron;
• screwdriver (phillips and flat);
• tester;
• needle file or sandpaper;
• tweezers;
• hair dryer for blowing after cleaning contacts.

The search for defects is necessary in order to make a final conclusion about the possibility of its repair and the advisability of further use. Sometimes the price of the issue is only 200 rubles, so there is little point in correcting the breakdown, but if the filter was powerful, with a reusable fuse, then the cost of such a device can be several times higher.

The uninterruptible power supply turns off by itself

Everyone knows that power surges are dangerous for household and computer equipment, as well as electronic components of power tools and industrial equipment. Unfortunately, power surges are not uncommon in the power grids of our cities, and even more so in villages.

To protect equipment from these phenomena, the UPS device was invented, which is an abbreviation of its name: uninterruptible power supply. UPS is his English. abbreviation.

Thanks to modern technologies, the UPS effectively smoothes out voltage surges and radio frequency interference, and in the event of a complete power outage, it switches to powering consumers from the backup battery.

How to choose a surge protector for a computer and laptop

Many, when purchasing a laptop, all-in-one computer or desktop computer, do not forget to purchase a pilot filter, and do the right thing. Expensive equipment can break down as a result of network surges, so it must be protected from breakage.

When choosing a filter to protect your laptop and computer, you need to look at such primary points as:

• number of sockets,
• wire length,
• presence of a power button and indicator light.

The standard length is 180 cm, but if you wish, you can look for models with a cord of 3 and 5 m. The longer the cord, the more practical it is to use, and in the office it will be more convenient to have a short cord so that it does not get tangled under your feet.

If the length of the wire turns out to be shorter than what the manufacturer stated, the other qualities of the device may also be questioned, and it is better to refuse to purchase this device.

Of course, the device must be powerful, that is, it must be enough for all the devices that you plan to connect to it.

It will be convenient to have an off and on button so that you don’t have to unplug the cord from the outlet every time, especially if it is located in a hard-to-reach place. The light will indicate whether the device is turned on or not.

There should be enough sockets for all devices: router, printer, monitor, scanner, so that you don’t have to purchase additional extension cords that do not serve as a surge protector. Also check the distance between the sockets - it should be enough to conveniently connect several devices at once.

A mount for wires is also useful; it will be useful if there are a lot of wires and you don’t want them to get tangled. This “item” is optional, but will be convenient to use.

It is worth keeping in mind that no network filter will provide complete protection of your computer from network surges. Only an uninterruptible power supply or voltage stabilizer can cope with such a task.

It is important to pay attention to such characteristics as the maximum current - this indicator must be at least 10 A, as well as the energy of the surge - in expensive filters it can reach several thousand J. If you have children, it is worth purchasing models with special curtains

If you have children, it is worth purchasing models with special curtains.

Also, if you plan to mount the device to the wall, immediately purchase a filter with such a mount.

Make sure the filter has a sufficient warranty period. Reliable manufacturers usually provide a guarantee for their products for up to 5 years.

You should not buy cheap devices of dubious manufacture. It’s better to spend money once and buy a high-quality, reliable filter.

VIDEO INSTRUCTION

If you have a laptop

As for laptops, they are equipped with rechargeable batteries that can partially smooth out power surges. But even if you have a battery, it is recommended to purchase a surge protector, since batteries can behave unpredictably.

They especially do not like it when they are not turned off from the network and at the same time turn off the laptop. If you forget or don't want to unplug the plug from the socket every time, use a surge protector.

In order for the surge protector to work properly, no other devices, such as an iron or kettle, should be connected to the device. The outlet must also be grounded. Unfortunately, this is not always the case in older houses.

Do you need a surge protector for your TV?

The question of whether to install a filter for a TV is quite controversial among experts. Many people believe that if the electricity in your home is not turned off, then you can do without this device. But are there many such houses in our country?

After all, even in the capital, power outages are not uncommon. This means that you should take care of purchasing a network noise suppression filter. Uninterruptible power supply will help extend the service life of equipment when turned off and on for an hour.

An inexpensive 250-watt model will be enough to install at home. It is enough for stable operation of a regular 130 Watt TV, taking into account the router and receiver.

The cost of such a device will fluctuate around two thousand rubles, which is much cheaper than repairing equipment in the event of a breakdown. If there are regular problems with electricity in the house, it is worth purchasing a powerful uninterruptible power supply that can work for a long time.

For LCD TVs, it is recommended to install stabilizers selected for the voltage of your particular outlet. As a rule, conventional surge protectors are not able to protect expensive LCD TVs from damage; only stabilizers can do this.