Show phone

Septic tank and Autonomous turnkey sewerage in Moscow and the Moscow region

We work without queues. There is a possibility of urgent check-out

No advances, prepayments, and hidden fees!

Departure of a specialist, consultation, measurement and calculation of estimates for FREE

PAY ONLY FOR THE RESULT AFTER THE WORK IS COMPLETED

For any questions CALL BY PHONE, WE WILL BE HAPPY TO HELP!

We have been working for Avito since 2015 and value our reputation!

The degree of cleaning of our septic tanks is 98%

SUMMARY OF OUR SERVICES:

Installation of a septic tank and autonomous sewage (Unilos Astra, Topas, Biodeka, Eurobion, Tver, etc.);

Year-round performance of installation work;

Installation, cleaning and repair of a septic tank of any complexity;

Installing local treatment facilities(LOS);

Maintenance of all types of autonomous sewers (septic tanks)

Biological treatment plants for industrial facilities

Repair of pumps in septic tanks (Grundfos SQ, SP, JP, Grundfus, Karcher, Belamos, Belamos)

Site drainage (softrock)

CALL FOR ANY QUESTIONS, WE ARE GLAD TO ANSWER ALL YOUR QUESTIONS.

WE PERFORM WORKS QUICKLY AND QUALITATIVELY EVEN IN "DIFFICULT" AREAS.

Your benefits when contacting us:

1. Departure for measurement during the day;

2. More than 5 YEARS ON THE MARKET;

3. Issue technical passport and conclusions of the SanEpidemStation;
4. More than 1000 installed septic tanks;
5. We carry out work with any complexity (a site, a cottage, a house, a summer residence) and in all types of soil, incl. in "quicksand";

6. ALWAYS FAVORABLE PRICES, promotions, gifts;
7. Warranty 1 year for installation work, 2 years for electrical equipment, and 3 years for autonomous sewers (septic tanks);

8. Only professional teams;
9. We work strictly according to the contract and the price does not change in the course of the work!;

10. Subsequent warranty service of the septic tank;

11. No cesspool machine required;

12. ODORLESS / ENVIRONMENTALLY FRIENDLY and passes all SanEpidemStation norms;

13. YEAR-ROUND OPERATION

14. Minimum operating costs.

15. We carry out turnkey installation, full commissioning and readiness for work.

16. The service life of a septic tank is up to 50 years.

We have our own service department!

Stages of installation work:

We prepare a foundation pit for an autonomous sewage system → We install a septic tank in the foundation pit → At the same time we fill the septic tank with water and sprinkle it with sand → We carry out commissioning works → We hand over the object → We sign documents on both sides and the client pays

Installation of a septic tank for country, residential buildings, cottages, country house, cottages, small businesses and tourist bases buildings, gas stations, gas stations, parking lots, car washes, in multi-apartment buildings, office buildings, industrial and construction sites, highways, bridges.

CALL, WE WILL BE HAPPY TO HELP. CONSULTATION and CALCULATION FOR FREE

First, a little about myself. I am an electrician by profession. He worked for the ZhEK for seven years. We have such a sinister organization. Now the specifics of my work are a little different, but, nevertheless, questions on the topic "real electrician's knife" still worry me. So here's the specifics. That is, about what makes the situation unique.

Knives are different. Electricians are also different. I am writing about those electricians (strictly speaking - electricians) who work with a voltage of 220/380 volts with networks of 200 amperes or less. Those. typical household-zhekovskie fitters. I won’t lie about other electricians - there is another story. So. It is unlikely that anyone will be very interested in hearing about the fitters themselves and about the housing office, but it can be funny to read about the super-knife of an electrician.

Again, it's a matter of specificity. Household-zhekovsky fitter (abbreviated as BZHM) has to work at temperatures from -15 to +40, sometimes in water, in tight quarters, in the dark, and - quite often - with live wiring. The latter seems to be not supposed to, but such is life ... So how to work in such conditions? What do knife manufacturers offer us? Yes, nothing good...

Masterpiece #1 - Black Handle Folding Wonder

Produced during the collapse of socialism by an unknown manufacturer ... Folding ... There is no fixation of the blade (so socialism was still flickering, damn it ...) The mechanism was gouged in a week. Clogged in a day. On the handle there are only plastic linings, which in no way provide protection against current. Mysterious teeth on the back of the blade. Theoretically, these cloves can:

a) remove scale from wires

b) remove the insulation from the wire.

Both actions can be done only by folding the knife - the blade is not fixed. Which is not convenient. Better to just use the blade itself. In addition, at (b) the metal of the wire is damaged. Pros, of course, try to avoid this. On the side opposite the blade, on the handle is a beer bottle opener. That's what it means - a knife designed under socialism. They still care about people...

There is a variant of such a knife, where instead of an opener, a screwdriver is attached. But that knife was probably invented in very dark times. And the screwdriver there was bespontovaya ...

The steel of the knife is not suitable for anything. Blunt quickly with burr formation.

True, there is something good in the knife. The cutting edge is a straight line parallel to the main axis of the knife. What is good about this, I will explain below.

But in general, this knife is not a knife ...

Masterpiece #2 - Red and Black.

A fresh product, again from an unknown domestic manufacturer. The blade is short, which is the only thing that pleases. The cutting edge is made obliquely from the main axis of the knife. It is not comfortable. I will explain further. There is a screwdriver on the back of the handle. You can’t turn large screws with it - the grip of the handle is not comfortable, and for small screws the size of the working part of the screwdriver is too large. And the funny thing is that this screwdriver is one piece with the blade, i.e. under tension, the blade will no longer work. The handle was made with a claim to be anatomical, but due to the fact that the thickness of the handle along the plane is small, the claim remained a claim. The mysterious tooth on the back of the blade is as necessary as the dog's fifth leg. The knife comes with a mini blade sheath. Because of minimalism-anachrenism, they will quickly get lost. I haven't used this knife and wouldn't recommend it to others.

Other Masterpieces.

Unfortunately there are no photos. Hacksaw blades are very popular with electricians. The canvas is sharpened in the manner of a shoe knife and wrapped with electrical tape or something like that. Partisanship, of course. The knife is too big, the blade is not the most in the best way sharpened, but cheap, reliable and more or less practical.

Another masterpiece was issued by foreign manufacturers. By appearance- a typical Finnish puuko, only the handle is plastic. The electrical isolation of the handle pleases, but this is where the specificity (specialization) ends. Side by side on a shelf in the store are knives of the same company and of a similar type: knives of a carpenter, diver, etc. How to >< будто >the names of the knives in the lottery were played.

And now the best electrician's knife of all time.

When sold, it looked like this:

Again, an unknown domestic manufacturer gave out this ingenious knife under the guise of some kind of garden knife :). (Like all ingenious things, they invented it by accident and not for what they wanted). And it cost ridiculous - 17 rubles (a year ago). In fact, an electrician cannot find a better knife. Why? I explain.

The knife should generally be small so that you can safely work in cramped quarters. The blade itself should also be small, so as not to cut too much in a tangle of wires. And yet - a short blade is better felt by hand, it is easier to do small jobs. The cutting edge is straight and parallel to the main axis of the knife. This simplifies the work of cutting cables in a double sheath - when you need to cut only the outer sheath, and not damage the inner one. With a knife with an oblique blade, such work is more difficult to do.

By the way, any knife can cope with the main task of the knife - stripping wires. It is done like this -

(< срезание > < изоляции >how< будто затачивается карандаш).

(cutting the insulation around the circumference).

I have a suspicion that the mysterious teeth on some "professional" knives are intended for such incorrect removal of insulation.

Move on. Handle. Non-anatomical, but miniature (which is important) and comfortable. By touch, you can easily determine where the cutting edge of the blade is located on the handle. Naturally, the handle is plastic and current-insulating. Blade metal. Something slightly carbonaceous and successfully heat-treated. Out of modesty, the manufacturers did not indicate either their trademark or steel grade.

Oddly enough, an electrician does not need a very sharp knife. Firstly, in many operations, the fingers come into contact with the cutting edge, and secondly, an overly sharp blade can damage the metal of the wire when stripping or, when cutting the cable, hook the wrong insulation that is necessary. Such sharpness of the blade in this knife is mysteriously maintained by itself. Not otherwise, some top-secret military developments were used :). Sometimes you just need to slightly tweak the cutting edge on the pebble. The combination of flexibility and hardness is perfect - this knife had to withstand hammer blows. Only the blow of a sledgehammer did not endure - it was shortened by half. This made them even more convenient to use.

The miracles don't end there. Sheath. I have not seen a single electrician with a scabbard attached to a belt. Not convenient. And in principle, scabbards are needed. So that the knife in the heap of the tool does not become dull and that it can be safely removed from this very heap by touch. The presented knife has a plastic sheath that also hides a third of the handle. Fitted tight. Hold tight. They don't fall off from any vibration. With a slight movement of the thumb, the hands are easily reset. Perfect ... It remains only to thank the creators of this knife and complain about others - clumsy.

P.S. As an addition, a few more photos of knives.

In the photo - a knife, referred to in the store as an "electrician's knife". However, it is too big and not convenient for delicate work.

This is what another "electrician's knife" looks like. This one is better, but its handle is also too big:

P.S. Be careful when working with a mounting knife: position your hands so that the tool, jumping off, does not injure you.

A stripping knife is a must in every electrician's toolbox. It can be in the form of a specific device purchased at retail outlets, or made independently. The main thing is that the installation tool functions well. Such models for professionals are equipped with additional mechanisms that increase the efficiency of the device.

The cable stripper does not have to be a straight blade. Often, to remove the insulation, you need to make circular cuts, which are more convenient to make with a curved blade.

You can get by with an ordinary knife, carefully cutting the top layer of insulation along the wire, and the inner one using circular motions, then removing the braid. However, if the parameters of the knife blade and the handle do not match necessary requirements you can freely damage the strands of the wire, especially if they are thin. To make it easier to make cuts in a circle, the mounting knife is equipped with recesses corresponding to different wire sections.

must meet the following requirements:

A highly honed blade of an electrical knife only complicates minor wiring manipulations, especially in a dark and cramped room.

Involuntarily, the fitter's fingers will touch the honed side of the blade, and damage to the metal strands of the wire will also occur.

When cleaning the cable, it is necessary to monitor the position of the blade in relation to it (observe an acute angle), otherwise you can cut the core of soft metal (copper or aluminum). Removal of insulation should be carried out with light movements away from you, cutting off the braid in parts.

If the tool is purchased from a retail outlet, electrical engineers should pay attention to the voltage that the handle can withstand. He is marked here.

Tool varieties

There are a large number of different tools with their own specifics. This also applies to cable cutters. Products of this kind are divided into two types:

• to remove the outer insulating layer;
• for stripping internal insulation.

To remove the outer insulation, use a tool equipped with a special heel.

This specific device is suitable only for such work. Therefore, it will be beneficial to purchase it for electricians with professional activities who constantly perform such procedures.

The rare use of a knife with a heel for stripping insulation at home does not justify the rather large purchase cost. Often such a tool is made by hand, using improvised materials.

A special knife with a heel purchased at the store is convenient to use. The rubberized handle allows you to firmly hold it in your hand, and thanks to special notches on the rubber coating, it does not slip out of the palm and fits well into it.

The blade is made of high quality steel. It is double-edged, it is possible to dissolve the isolation both from oneself and towards oneself, that is, in both directions. The end of the knife is equipped with a small plate, called the heel, and allows you to safely strip the cable without damaging the internal winding.

Its size is selected in accordance with the thickness of the wire. A knife with a wide heel is well suited for processing thick stranded cable, and with a device with a small heel, you can remove the insulating layer from a wire of any diameter. Therefore, the second option will be more universal.

The main function of the heel is to limit the incision in depth when you have to work with double insulation: remove the top layer and leave the inner layer intact. The heel makes it easier to slide along the wire and prevents the blade from breaking the inner wires. The disadvantage of such tools is their cost (1000-1500 rubles). It should be noted that it is better to clean flat cables with a knife with a heel, although they are also used for different sections, but when cutting a round one, damage to the internal conductive cores is possible.

Other fixtures

After removing the outer layer of insulation, it is usually necessary to remove part of the inner one, for example, to solder it to the board or screw it to the terminals. This manipulation will be more difficult, since the inner winding usually surrounds stranded wire, which consists of thin copper veins twisted together. In this case, you will need a type of tool such as a puller or stripper.

Stripping the wires, removing the insulation, is possible with the help of special pullers, which are truly universal tools for working with wires.

Their device has several blades of different lengths and shapes, but the main element is a clamp with which you can make circular cuts of cable insulation with different sections. It is convenient to use such tools, since you can manually select the desired diameter and not be afraid of damaging the conductor. To do this, the cable is fixed in the clamp, and the insulation stripper is scrolled around it.

A stripper is a type of stripping tool that is well known to electricians. It is very convenient for them to work with wires of different diameters, remove both the upper protective layer and the inner one, adjusting the depth of cut. Easy to strip thin cable. Often the stripper is equipped with additional devices with which it becomes a truly multifunctional device.

A knife with a beak is endowed with a certain specificity. Not all electricians use it in their work. For many, it is convenient, but not for everyone. The blade has a smooth curve shape, the heel is missing. The beak-shaped inner edge makes it possible to make circular cuts in the insulation before removing it. With caution, since there is no heel, you can also use it for cuts along the wire. More often, experienced electricians use this device, since the depth of the cut is manually adjusted.

A knife with a hook is a professional tool. It has a straight and short blade, equipped with a hook at the end. The sharpened edge is either absent at all (only the hook is honed) or is on the other side in the form of an addition. The device is convenient to use for cleaning insulation on almost all types of wires.

Product selection criteria

Cable cutter for stripping - a tool that has a large number of varieties widely represented on the market. Their production is carried out not only by domestic brands, but also by foreign companies. The tool must be safe and simple, therefore, when purchasing it, the following factors must be taken into account:

For professional use, it is better to stay on tools from well-known brands.

For example, a set of knives for cutting NNRK cable (EMI). Using it, you can make longitudinal and transverse cuts in aluminum and lead sheaths with a thickness of 2 to 5 mm and easily remove it from a cable with a diameter of 25–60 mm. Also in a large assortment of NNRK for performing a complete cutting of a cable made of cross-linked polyethylene, the voltage of which is from 1 to 35 kV. Not only classic models are provided, but also innovative ones that will make this stage of installation much easier.

The first question that is asked by those who previously managed with ordinary construction or even clerical knives is whether an electrician's knife with a heel is really needed to such an extent that it is impossible to perform electrical work without it? Many specialists have worked and work for decades without it and at the same time competently perform all the electrics.

For example, some even specifically use a not sharpened knife for longitudinal cutting of the insulation between the cores. This method may be suitable for soft rubber or vinyl sheathed cables.

The heel does not give significant savings in the speed of work. Of course, the cleaning process is a little faster, but it is impossible to say that the work is done 2 times faster, in the same time. Here the most important factor is the skill of the performer and his experience. A professional should be able to clean with anything, even with a construction knife, even with side cutters. At the same time, do it efficiently and quickly.

Another question is that a professional must to have such a dielectric tool in your kit, but what does it give to a simple layman?

The main advantages of this knife:

• comfort at work
• reliable insulation of the handle, in case someone accidentally turns on the machine, and voltage appears on the cable (up to 1000 volts)
• safe removal of insulation without "jambs", cuts and scuffs, even if you are an amateur and use it for the first time in your life

Such a knife is equally suitable for those who are engaged in both purely electrical work and complex repairs, without having sufficient experience in cutting the cable.

Cable stripping GOST and TU

Another point that you should not forget about is that the knife with a heel is intended primarily for flat cables of the VVGng-P type. Of course, the craftsmen clean everything for them, but the amenities there will already be completely different.

When stripping a round cable, the use of such a device is traumatic. For such brands like NYM, there are more convenient and specially designed tools for this.

At the same time, when using a cable manufactured according to specifications(TU), and not according to GOST, the insulation will be removed faster and easier. The insulation of the cable according to GOST is much thicker, it fits more tightly to the cores and is harder to work with.

Be sure to wear gloves here, without them everything can end in injury.

Therefore, if a knife with a heel does not remove insulation well, do not rush to be disappointed in it, maybe you just have a quality cable.

By the way, in a similar indirect way, you can find out which TU or GOST cable you have. Unless of course you are sure that the knife is not dull, and you have tested it before on other wires.

Let's take a closer look at the main manufacturers. They are not much different from each other, but still have their pros and cons.

Chinese red knife LS-55

Previously, this knife was not produced under any brand - KBT, it is also a replica of the first generation Knipex, Shtok and others. Today, a similar tool can be bought at bazaars and Chinese online stores AliExpress. The rest of the firms switched to a different design. True, some are sure that KBT and "China" are still one and the same, only KBT is twice as expensive.

Many other tools still have the shape of the handle of this knife. It is completely plastic and has no rubberized inserts. At the end of the handle there is a cut for installing and storing a protective cover.

This is a very original and convenient solution so as not to lose it during work and not to look for it after. In other more expensive brands, this is not enough.

If you have a large palm, then the knife may be really small, as it has the shortest handle length among other specimens. However, when working in small cabinets, this can be a significant plus.

The blade is not straight and has a slight slope. The heel is made quite high quality:

• drop-shaped
• not big
• edges are neatly finished
• high quality welding

One of the significant drawbacks is that a dull blade can often be caught. With such a blade, it is very difficult to make exactly the first cut. The insulation is more crushed than cut. To facilitate this process, you can use pliers, and even better, thin-nosed pliers.

Crimp the end of the cable with pliers and slide the heel under the outer sheath.

The main thing is to make the initial incision, and then the knife goes faster. Cutting "on your own", making it easier and safer. But when working "for himself" - he usually chews insulation. To make it easier, try to bend the cable a little, making a small arc.

Of course, it is better to buy such a knife live, from a real seller. At the same time, immediately check on the spot how he removes the insulation, taking with him a piece of cable.
If you got a blunt copy, then you can try to sharpen it yourself. It is not recommended to sharpen electrician's knives with a heel using an engraver or drill with a nozzle.

You can easily ruin the tool and overheat the edge, especially at high speeds. It is better to use diamond files and finish on sharpening bars. Sharpening near the heel is of course not very convenient, but with skill everything will work out.

The blade on the outside, with which you cut away from yourself, you grind with any bar like a chisel. And the inner one - with the help of triangular ones. If there are absolutely no options, then you can get by with car sandpaper with a grain size of 2500-3000. The whole thing is brought up with a belt and goyim pasta.

In a similar way, you can touch up and sharpen more expensive brands, the same Knipex, if it has become dull over time.

The most important advantage of this knife is the favorable price-quality ratio. It is the cheapest and if you are engaged in electrics only in your apartment or at home, then this the best choice. He will make 100% of his money. The main thing is to check the sharpening. Many professionals still use such knives and are not going to switch to knipeks.

KVT NMI-01

Here it must be said right away that with a similar design and shape of the handle, you can find a lot of knives. In fact, they are produced by the same factory, although they have different brand names:

Therefore, if you are thinking about buying such a knife, then you need to choose the cheapest one. The heel, blade, handle are almost the same here.

The heel itself, due to its very large size, is not very convenient when stripping cables of minimum sections - 2 * 1.5; 3*1.5; 2*2.5. This also affects the speed of clearing.

For such small wires, you even have to resort to the services of a simple construction knife. The insulation is cut at the very beginning of the cable, and only then, in order not to damage the cores, it is simply torn with the effort of one hand. But the question is why did you buy such a knife?

Moreover, not every cable can be easily broken. For example, with TU-shny, where the insulation is something like heat shrink, such a trick may not succeed.

It is also very important to check the quality of welding on the heel. When stripping a hard cable with hardened insulation, it can actually break off.

This can happen if the heel is clamped in the cable, the knife itself deviates sideways at an angle, and you try to remove the insulation with effort. Welding it back will be problematic due to the material of the blade.

Often there is a marriage in the form of asymmetry relative to the tip of the blade. It really is shifted to the right or to the left.

Most heel problems are solved by grinding it down to a smaller size and giving it a teardrop shape. Just before that, make sure that the welding is reliable.
The inscription on the handle of the KBT knife is erased very quickly, which indicates the possibility of applying any name at all to this tool.

Knipex is one of the most expensive items. In terms of functionality, it differs little from its cheaper counterparts, but it has a thing for which, in fact, you overpay - this is its branding.

When buying any of the knives, at first glance it is not immediately possible to distinguish which brand is in front of you. By purchasing Knipex, you will immediately understand that it is he who is in front of you. The style and design makes itself felt and it is difficult to confuse it with others.

There is very little marriage with this tool and you can work with such a knife for many years. You can not meet the grossest defects inherent in other manufacturers. The heel is always welded evenly and securely.

Convenient teardrop shape. It is under its size and shape that all other brands are adjusted when they are going to finalize them. Even if any jambs are found, it is easiest to exchange the Knipex tool from official suppliers.

The only inconvenience can be caused by the blade, which eventually becomes dull. Especially if you will cut insulation with them like construction knives.

You can fix it using the methods described above. After that, he will again serve you faithfully.

True, due to the shape of the knife, certain problems may arise. Initially, the influx on the handle will interfere, but if desired, it can be grinded off a little.

But the most difficult thing is the plastic blade protection, which is located on top and interferes with maintaining the factory angle. If you need this protection, you will have to change the angle a little. The knife will not stop cutting from this, the main thing is that the blade is sharp. If you want to keep the "factory settings" you can grind off a couple of millimeters of plastic.

Most often, the outer side of the blade deteriorates, the one that is intended for stripping from oneself. This is due to the fact that with inaccurate work inside the switchboard, the knife can break off and hit some obstacle with this side.

Well, in general, this is the best electrician's knife of all presented, especially for stripping hard and GOST cables.

In terms of design, it is very similar to KVT NMI-01, but slightly smaller. When buying not live in the store, but through the mail as a parcel, you may encounter problems:

Therefore, with this brand you need to rely more on luck. Whether you're lucky or not, there's no guarantee of quality. And the price is twice as high as that of a red Chinese knife.

The main difference here is the original handle. Namely, its curved shape and special recesses for the fingers. If you have worked with other brands before, then at first you will feel discomfort. It's a matter of habit here.

The handle is quite long and it is not very convenient to work with it in narrow and compact cabinets. Unfortunately, there are no branded inscriptions with the designation of the brand of the manufacturer. You can easily run into some kind of fake, where any Chinese will write Made in Germany.

The heel, like the Knipex knife, has a slope and is small in size. This makes it easier to work with small cables. But the quality of the steel raises questions. Notches may appear when the blade hits the copper core of the cable during the stripping process.

But for your money, taking into account the German manufacturer, this is not very bad choice for a quality knife.

The knife is simple and uncomplicated. A similar handle is very common in - Weicon, Haupa and some NWS. It is made of a homogeneous material, without comfortable rubberized inserts.

Has a large cap to protect the blade. The heel of the original shape and medium size, also has a slope. It resembles a boat in shape and is raised from the ends.

Designed to be able to cut into the insulation right from the middle of the cable. Sometimes it's just necessary.

It removes insulation similarly to other knives and at the same time has a price tag many times more expensive, often even more than Knipex. Whether it's worth the extra money is up to you. When there is a choice, you can stop your look at more attractive models in design.

COMPARISON TABLE

• For everyday work choose Knipex. Although its price is higher than many others, but when used for its intended purpose, it will serve you for a long time. The main thing is not to dull the blade on any extraneous sweeps.

• The middle option between the two above is KBT. When you are afraid to buy at random through a Chinese online store, the main advantage of this brand is that it is easy to find it on sale in many of our cities and what is called probing everything with your own hands.

Brand	Heel	A pen	Price
Red LS-55	Small	Plastic	300 rubles
KVT NMI-01	Big	Two-component	1000 rubles
Knipex KN 9855	Small	Two-component	3100 rubles
sata	Big	Two-component	800 rubles

Devices and devices for stripping wires are included in the mandatory tool kit of any master who deals with electrical work. The range of such tools is extensive and includes cable pliers, wire cutters, strippers, etc. The simplest solution to this task is a heeled stripping knife, which is cheaper in price and does not have special maintenance requirements.

Features and purpose of a knife with a heel

In general design, such knives are not much different from ordinary kitchen knives. The device is formed by the same handle, rubberized pad and blade with a protective cap. Features lie in the details, but in terms of application they are essential. In particular, the heeled stripping knife has a compact size and a small cutting portion. At the same time, the blade itself is distinguished by a modest thickness, but it is necessarily made of a durable alloy.

Another feature of the knife, as the name implies, is the presence of a heel. This is a kind of blade hook, which simplifies the process of working with the wire. Usually the heel is welded to the end of the blade, but there are also monolithic versions - they are also the most reliable. This configuration makes it possible to handle VVGng-P flat cables. Although, in the hands of a skilled craftsman, it can be a universal cleaning agent. And another extremely important point is electrical insulation. For live work, a 1000V heeled stripper should be used, which is just right for most household and public communication lines.

Main characteristics

Cable knives are mainly characterized by three parameters - the length of the blade, the total length and the sections that are acceptable for work. The length of the functional area will determine the dimensions of the cable that can be processed by the tool. On average, the blade has a length of 25 to 50 mm. Moreover, you should not consider increased sizes only as a way to expand work activities. A small blade is more effective in working with thin wiring. The master spends less time on such operations, so it still makes sense to focus on a specific group of target materials.

With regard to the overall length, the heeled knife for stripping reaches an average of 170-220 mm. The convenience of the master depends on this value, that is, the handle is selected for a comfortable grip of the user's hand. In some cases, small knives are more ergonomic, and in others, large ones. The standard range of sections that this tool can work with includes 3*1.5 formats; 2*1.5 and 2*2.5. Also, do not forget about the insulation of the knife - electrical protection at 1000V is the main characteristic of such devices.

Knife Knipex 985303

The model has a non-standard blade shape, even by the standards of the general segment of knives with a heel. Instead of a hook-shaped end, a recess for gripping the insulation is made in the central part of the cutting contour. This solution reduces the risk of accidental slippage, but can make the process difficult in terms of grip comfort. Other features of the device include the use of soft, but wear-resistant materials. The practice of use shows that when holding the handle, a high transfer of force to the proprietary curved Knipex blade is ensured. At the same time, the tool is designed to work with wires of round sections, which distinguishes it from most repair knives with a heel. But, it is important to consider that the models of this company are more expensive than their counterparts - about 1000-1300 rubles. In this line, modifications with price tags below 1000 rubles are rarely found.

Model NWS 2040

Another major manufacturer of electrical tools, made according to the VDE standard. The tool is a dielectric knife provided with an insulated handle based on a multicomponent material. The working area is 50 mm long, so the user can work with a wide range of cables. The peculiarities of the blade can also be attributed to its thickening, which allows you to apply a higher force in the process of work without the risk of damaging the base. However, stainless hardened steel was used as the material for the cutting part. It's not the best the best option taking into account the fact that most modern models (the same Knipex) receive blades made of tool steel. With such a metal, an electrician's knife lasts longer and needs sharpening less often. But there are no special complaints about the handle - it is safe, impact-resistant and ergonomic to handle.

Model KBT NMI-01

The modification is designed to work with stranded wiring without the risk of damage to its base. The surface of the handle has a special dielectric effect, which gives the tool ergonomics and safety. The model itself is compact - with a weight of 120 g, it has a fixed blade and a total length of 175 mm. User reviews of this tool are mixed. On the one hand, many craftsmen emphasize the ease of use, the thoughtful design of the handle with protective barriers and the presence of a two-component cap. However, physical strength is far from the strength of the model. During operation, the heeled stripping knife KBT must not be tilted to the side at an angle. Small adjustments are acceptable, but the risk of damage to the blade remains. And the heel itself is especially sensitive to such manipulations. It can be accidentally broken off, and it will be almost impossible to weld it. At least with the preservation of basic integrity.

There are also reviews in which KBT knives are criticized for the asymmetry of the heel fit relative to the blade. Of course, this is not good in terms of influencing the quality of the operation, but if desired, the heel can be ground off, giving it the desired shape.

Model SHTOK 14004

The knife is provided with a partially insulated blade and a heel designed to work with large and small sections. The support shoe is characterized by a rounded shape, which reduces the risk of damage even to the internal insulation of the wire, which, in accordance with the task, must be left intact. Also, the tool has slip protection and barrier inserts included in the handle design. It is important to keep in mind that the manufacturer latest versions made a slight departure from the classical forms. How is it shown? The stripping knife in question with the “Stem” heel has a reduced cap, a size-optimized blade and a reduced end. Moreover, the heel not only became more compact, but also received an angle relative to the cutting blade. And in this case, asymmetry is not a marriage, but a completely conscious design decision.

Nuances of choice

The knife should be selected based on considerations of comfort, safety and acceptability for effective work with a particular wiring. A quality knife does not involve a high risk of cuts and scuffs in an area that should remain intact. This largely depends on the performer himself, but the design developers make the tool as safe as possible in terms of the likelihood of such errors. It is important not to forget about the differentiation of models according to the possibility of applying to sections different shapes. The classic heeled stripping knife is a flat cable tool. But there are modifications that work with round wiring. They are distinguished by a large blade with a deep recess and a more massive heel. Do not underestimate the importance of the shape of the handle. It also affects the likelihood of making a mistake. It is advisable to choose models with rubberized inserts, a protective barrier and cuts for cap integration.

How to make an electrician's knife with your own hands?

To make such a tool, you will need a metal profile (for example, a piece from a mosquito net frame), a clerical knife blade and several wooden bars. For the heel, you can use an oval-shaped metal plate - the main thing is that it is strong and allows the possibility of solder in relation to the blade. In it, you should initially make a small hole-strip, into which the end of the blade will enter. Next, using a soldering iron, fix the heel at a certain angle or symmetrically.

You can start making the handle. Usually homemade knife for stripping with a heel, it is performed with a metal handle, for which the profile was prepared. This solution is the only justified one at home, since it is almost impossible to fit high-strength plastic to a specific shape without a special tool and material. The blade is fixed in the profile with wooden blocks that will clamp it. To give the reliability of the structure, already in the niche of the profile itself, several holes for rivets should be made and fastened.

Finally

The function of the stripping tool is not particularly difficult. Anyone who has dealt with insulation stripping knows how easy and undemanding the job is. Nevertheless, it is not always possible to perform it qualitatively, therefore it is recommended to use special devices.

For professional electricians, for example, products from NWS and Knipex are recommended. The tool of these brands is distinguished by the basic quality of construction and durability. Regarding the considered models SHTOK and KBT, we can say that they focus on domestic use. These are functional and ergonomic knives, but in responsible work it is still worth giving preference to more solid products.