What kind of extension cord for a lawnmower

What to choose a power extension cord: rating of TOP-9 extensions for professionals

Extension cord. an indispensable helper in the home and when performing certain types of work. This device with several outlets and very long wire, invented in 1972 by Peter Talbot, allows us to conveniently and comfortably arrange the appliances as we need, regardless of the availability of electrical outlets in one place or another. But there are also special power extension cords. indispensable helpers in garages and on construction sites. They will allow you to use a variety of power tools, even at a considerable distance from the power source. In this article we will talk about the top 9 best power extension cords.

Power extension cord. a device that is used to connect to the power supply of various devices where there are no conventional stationary outlets. This electromechanical device consists of a plug, a wire of varying lengths, and outlets. one or more. into which other appliances are plugged. Typically, an extension cord is used as a temporary connection option, but in the home it can also be used permanently. As for construction sites, it performs a temporary, but very important function.

Extension cords come in many varieties. For use in difficult conditions and when connecting equipment with special requirements, it is the power versions of extension cords that are used. As a rule, they are used where it is necessary to safely connect electric appliances with high power from 3 kW. You can’t plug in the same electric lawnmower through a standard extension cord. only through a power cord.

Power extension cords compared to the usual household are usually much longer (up to 50 m), have a special level of protection from external influences, have a good margin of conducted power. Such extension cords or carries are well protected from moisture, have a strong wire jacket. all made to avoid accidental electrocution. They are always useful on a construction site in a garage, when repairing a house or apartment, in the garden.

Wire cross section

The most important parameter in the extender. wire section. The cross-sectional area of the cable is measured in square millimeters. The more outlets on the extension cord, the greater the cross section should be, so that each outlet can be connected to a powerful device. Of course, if you connect low-power devices like phone chargers, there will be no problems with the thin cable, but it will be dangerous to connect several kettles.

Wires with a cross section of 0.5 mm², 0.75 mm², 1 mm², 1.5 mm², 2.5 mm² are commonly used on extension cords. Cross-sectional area indicated on the wire marking. A good extension cord with a 2.5 mm² cable can cost several times as much as one with a 0.5 mm² cable because copper is expensive.

kind, extension, cord, lawnmower

Wire marking Sometimes manufacturers try to cheat and make thick insulation to make thin copper wires “reliable.

The marking indicates the same cross-section, but in fact it is not Real cross-section can be seen by disassembling the socket block. Check the quality of the solder while you’re at it. Unsoldered contacts will be immediately visible. Often, to save money solder tin is replaced by diluted solder with lead, it has 2 times less tin. The characteristics of the solder are worse and you can recognize it by its dirty gray surface, not the silver mirror like usual. It is better not to leave devices with such solder unattended. In mass production they often replace unprocessed soldering with welding. Directly welded conductors to the conductor wire is not as reliable, it is better if the end of the wire is a sleeve and the contact is welded to a sleeve. Select the wire size for the work load. GOST R 51539-99 specifies the minimum cross section depending on the power of electrical appliances:

It is better not to buy extension cords with cable less than 1,5 mm², because unknowingly people can plug in a powerful heater, and a fire will happen. On sale such extension cords are rare and expensive. Therefore, it is more advantageous to buy everything separately and assemble your own extension cord.

Extension cords can come with two-core and three-core wires. The third wire is used for grounding. Even if there is no grounding at home, it is better to buy three-core, because they may need to be used elsewhere. The number of conductors is specified in the marking, for example 2×1,00 or 3×1,00.

How to Choose an Extension Cord

When choosing an extension cord, intended for use in conjunction with an electric lawnmower for grass, you need to pay attention to a number of important parameters and characteristics.

First, choose the optimum extension length. At this point, be guided by the size of your area. In addition, add a couple of meters “spare”.

Too fond of this plan too, you should not. with each additional meter the cost of the extension substantially increases.

To determine the approximate length of the extension cord, you can use the following diagram.

Given: a rectangular plot 20×30, t.е. The standard 6 acres.

Find the square of the diagonal of the site by summing the squares of its sides. Next, subtract the root of the obtained value to get the length of the diagonal. In the case of this section, it will be 36.06 m.

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The closest standard extension length is 40 m. Buy such a product. Reserve will go to compensate for turns, bends, etc.п. Round down the estimated length only if the fixed outlets are installed at different corners of the structure located on the site.

Second, you need to determine the appropriate cross-section of the carrying wire. To do this, you need to know the power of the lawnmower (indicated in the product data sheet or on the housing). The power rating of simple electric lawn trimmers is usually max. 2 kW, the power rating of wheeled lawnmowers is up to 4 kW.

In the case of trimmers, the recommended cross sections of cables will be as follows:

The cross section of the cable of the extension cord, intended for use in a complex with a lawnmower with a power of more than 2.5 kW, should be at least 1.5 mm.

Third, you need to decide on the grounding features of the extension cord. If grounding is necessary (and its presence is strongly recommended), buy a product with the number “3” in the marking. As an example, consider the model of the extension cord KG 3×1,5 mm from the popular brand Atlas.

In this case, “KG” indicates the brand of wire, and the number “3” indicates that the extension cable has three wires, one of which is directly a ground wire.

Best Way to Store an Extension Cord

Fourth, you need to choose a suitable design of the extension cord. As noted, such products can be made on a reel or in a coil. The first version is the preferred. The second is used mainly in the industrial scale and allows you to connect more powerful equipment.

Fifthly, it is necessary to consider a number of general recommendations for the choice of an extension cord for lawnmowers:

  • An extension cord must have one rubberized outlet. The presence of two or more outlets will create difficulties when connecting an electric lawnmower and cause inconvenience in the process of work.
  • For use in conjunction with lawn mowers, extension cords whose cord is colored orange are best suited. This coloring is simply more visible on the ground, which minimizes the chance of accidental damage to the cable and associated problems.
  • Due to the fact that the work on the care of the lawn is carried out mainly in the warm season, for use in conjunction with an electric lawn mower is preferable to choose an extension cord with a wire PVS.
  • If you want to use the power strip not only in combination with the mower, but also for various works in the cold season, it is preferable to use models with wires of KG.

Operating Instructions

If you wish, you can fix the extension cord permanently before use. for this purpose, the reel design is equipped with two mounting holes.

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Position the reel in a suitable place, mark the future location of the fasteners through the holes, drill the recesses and secure the reel of the extension cord with bolts or other suitable fasteners.

To plug in the power strip, connect the plug to a household power outlet. The automatic reel has an automatic deployment-deployment function. Unwind the cable to the desired length. After each half turn of the cord, ensure that it is secured.

To coil the cable after use, pull on the cable, ensuring that it is in a fixed position, then slowly coil the wire.

Automatic reels are characterized by a high tractive force rating. Do not allow uncontrolled coiling of the cable. Hold its end and slowly guide it along the movement of the automatic coil.

The reels of modern garden extension cords are equipped with mechanisms that provide protection against overheating during operation. As a rule, the color indication is the same in different models. If the LED light is red, this indicates that the overheat protector is in the on position.

If the protective system mentioned above is triggered, the bulb will go out. In such a situation, the user should unplug the power strip. After a few minutes (when the extension cord has cooled down) you can try turning it on again.

Reel extensions for lawnmowers do not require specialized maintenance. It is only necessary to clean them periodically. The automatic coil must be free of voltage during cleaning. To comply with this rule, unplug the power strip from the wall outlet.

Clean the outside of the power strip with an ordinary dry, clean cloth. Make sure that no moisture enters the construction of the extension cord reel.

Observe elementary safety precautions and warnings when using an extension cord:

  • Do not disassemble the power strip;
  • Do not use the product in rainy weather;
  • Do not use the extension cord in excessively humid locations;
  • Do not allow moisture to enter the interior of the extension cord;
  • Do not use an extension cord in a place where there is excessive dust, vibration, etc.;
  • Do not short-circuit the plugs on the outlets;
  • Do not allow children to use the extension cord;
  • Do not plug appliances into the power strip with a combined power rating greater than the maximum rating allowed for the appliance.
kind, extension, cord, lawnmower

Now you know what is an extension cord for a lawnmower, how to choose and properly use it. Follow the advice you received and everything will work out for the best.

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Wire marking

Several types of wire are used for domestic electrical extension cords, but only 3 types are suitable for outdoor use

  • PVS. two- or three-core, for outdoor use, resistant to ultraviolet light, a lifetime of more than 6 years. Insulation: polyvinyl chloride (PVC) inner, and PVC. outer sheath. Will harden in cold, may crack. Coloring. any. Deciphering: P. wire, B. PVC insulation, C. connection.
  • KG and KG-XL. two- or three-core, for outdoor use, service life over 4 years. Insulation by layers: Polyethylene terephthalate (PET), rubber, PET. Increased resistance to mechanical impact, compression, bending. The color is black, remains soft in the cold, especially the modification of the XL. cold-resistant (up to.60 °C). Protect from sunlight. Deciphering: KG. a flexible cable.

If the extension cord is grounded, then it has a three-core cord, and its marking must have the number “3”. Example. PVS 3h1, 5. designation of a 3-core wire.

Which one to choose depends on the intended conditions of use. Theoretically, it is better if the cord is orange. it is clearly visible in the grass. But practice shows that the frequency of damage by a lawnmower or trimmer does not depend on whether it is black or orange. A man concentrating on work, does not notice it, even if it is bright. So the choice of color is more of an aesthetic matter. However, the cable of mark KG, is more reliable, but it is produced only in black version.

How to choose a cable for an extension cord. brand review

Choosing the optimal size of cable for an extension cord is not a complicated issue for professionals. We will try to clarify it and for those who need this information for domestic and semi-professional purposes.

It is considered best to choose cables with a sufficiently high flexibility class and rubber insulation coating, which withstands well to repeated bends, low temperatures. These criteria are best met by KG (cold-resistant version KG-XL) and KGH. In some cases it is allowed to use PVC-insulated grades, for example, PVS or ORS.

KG grade

Flexible cable, this is how the marking KG is deciphered, approved itself perfectly for outdoor use, including manufacturing and construction sites. CG is resistant to multiple bending (from 30 thousand. The cable is resistant to mechanical stress, including squeezing, is well tolerant to cold (up to.The cables are resistant to the ambient temperature (up to 40 °C) and to heat (up to 50 °C), but do not “like” the direct sunlight. The rated service life is 4 years. European analogue of this brand is XYMM cable.

KG-XL version has similar technical parameters, but is more resistant to frost, up to.60 С. At extra-low temperatures the brand does not “tan” and retains its mechanical and electrical characteristics.

CGH grade

Similar to KGH products, mark KGH has a slightly shorter service life, 2.5 years, and differs in temperature conditions:.30/50 С. The cable can be used in environments where it can be directly exposed to oil, aggressive chemicals or sparks. KGH also requires protection from sunlight.

PVS grade

In contrast to KGH and KGN mark PVS shows resistance to the influence of direct sunlight, but at low temperatures is not the best way. Therefore, in spite of the nameplate temperature range.25/40 C, this cable is best used in warm seasons. Number of bending cycles. 30 thousand., service life. 6 years.

The brand ORS

This extension cord can be used to install lines indoors and in buildings, as well as in open spaces. Temperature range from.40 to 40 C. In other characteristics the brand is similar to PVS. A similar brand from European manufacturers. RN.

Cross-sectional area of an extension cable

The minimum cross section of the cable to be selected for the manufacture of an extension cord is considered 1.5 mm2. In this case, a 3.5-kilowatt extension cord will be able to support a total load of up to 5 kW. Marko-size KG 3×1, 5 will be optimal for 220 V lines, KG (5)x1, 5. for 380 V.

It is important to note that when increasing the length of the carrier, the loss of power can be compensated for by a larger cross section of cable for the extension cord.

What power strip choose for the house, garage, cottage. 5 rules.

An extension cord is such a necessary element of electrical.House wiring such as outlets, switches, and other equipment.

In the store you can find dozens of varieties. Which one to choose and what parameters to pay attention to first?

Remember, the longer the extension cord, the more voltage loss will be. For household appliances optimum extension cord length of 3m to 7m.

At the same time to connect the load in them can not exceed 3.5 kW (up to 16A) at the same time. It depends on the cross section of the wire.

By the way, a lot of jacks are not needed for the simultaneous connection of a large number of devices, and in order not to constantly pull the plug, thereby protecting against loosening contacts.

Cross section of the wire to connect the load of room equipment (TV, computers, refrigerators) choose not less than 0.75mm2.

Many people don’t know, but all extension cords must be made and comply with GOST R 51539-99 (IEC 61242-95). It is called “Extension cords for household and similar purposes on cable reels. Download it here.

Here are the regulated wire cross sections for extension cords according to this regulation:

Wire brand. most often PVS with PVC insulation.

kind, extension, cord, lawnmower

In this case, the diameter of the wire itself (not a single core) is desirable to have 5 mm or more. If it is not, then the manufacturer has most likely saved on something, either copper or insulation.

You can also use the brand KG, instead of PVS. It is more resistant to negative temperatures and weather conditions. This is the right choice for a street or garage application.

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PVA drag a few times on the concrete floor, and its insulation will come to an end. KG is more resistant to these conditions of use. Other cable brands are also applicable:

Here are the suitable cross sections of wire for quality carriers, and what they can safely include without the risk of overheating (refrigerators, washing machines, TV, drills, angle grinders, heaters, etc).д.):

Unfortunately, in the factory version, you will practically never find in stores household extension cords with a cross section of 2.5 mm2. Unless they will be reels or spools of great length, 50 meters or more.

And even then, an increased cross section is needed here primarily to reduce voltage losses, not to connect more power.

Therefore, such models (with wires 2.5mm2, 4mm2 and above) often make their own.

For more powerful devices, such as inverter welding machines, there is a completely different class of products.

The quality model must have protection against pulling and bending.

This applies equally to the plug and socket, as well as to the entry point of the conductors in the body of the extension cord.

Never work with twisted wire. Firstly, it will sooner or later lead to the damage of conductors, and secondly, such a cable will elementary heat.

Keep in mind that extension cords can withstand the rated load only when the cable is fully unwound. On the case, sometimes put special signs with the maximum current with a coiled wire and unwound.

Before you buy an extension cord, see what kind of plug it has:

If the plug is not cast and can be disassembled, then there is a risk to get a dubious product. These plugs are the easiest to make by handicrafts.

Extension Cords Explained

To produce solid, at least you need some professional equipment.

In addition, if your equipment with a plug without euro-plug, then an extension cord with euro-socket is contraindicated to you. The use of euro-adapters and adapters in this case increases the transient resistance.

And also breaks the system of grounding, which can lead to electrocution.current. Some devices and tools is elementary dangerous to plug without grounding.

Transient resistance of one contact in a new model must not exceed 0.05 ohms. During operation, it may deteriorate to 0.1 ohm.

What distinguishes a household extension cord from a power cord?

Popular models of power extension cords are very different from their household counterparts:

  • Power of the connected equipment. to the power strip you can connect devices with a capacity of 3 kW, such high values are not required in the home, but will be very helpful for repair or garden work;
  • Length of the cord. the power extension cord can be removed from the stationary point of power even at 50 m, in the apartment it is not necessary, but for the work on the street great length becomes a real salvation;
  • Reliability. a power strip is much better protected from the factor of external influences. Thanks to double-insulated cables and sockets with an improved safety system, the risk of electrocution is reduced to zero.

How to choose a cable for an extension cord. an overview of brands

Finding the right size and brand for your power strip is not too complicated for professionals. We will try to clarify it, and for those who need this information in the domestic and semi-professional purposes.

It is considered that for an extension cord is best to choose cables with a sufficiently high flexibility class and rubber insulation, which can withstand repeated bends, low temperatures. These criteria are best met by KG (cold-resistant version KG-XL) and KGH. In some cases it is allowed to use PVC-insulated grades, for example, PVS or ORS.

KG grade

Flexible cable, this is the code for marking KG, proved to be perfect for outdoor use, including production and construction sites. KG is resistant to multiple bending (from 30 k. It can withstand considerable mechanical loads, including compression, and is tolerant to cold (up to 220°C) and shock loads (up to 220°F).40°C) and heat (up to 50°C), but does not like direct sunlight. Data service life. 4 years. The European analogue of this brand is XYMM cable.

KG-XL version has similar technical parameters, but is more resistant to frost, up to.60 С. Mark does not “tear” at extra-low temperatures and retains its mechanical and electrical characteristics.

CGH grade

Similar to the KG product, brand KGH has a slightly shorter service life, 2.5 years, and differs in temperature conditions:.30/50 С. The cable can be used in environments where it may be directly exposed to oil, aggressive chemicals or sparks. CGH grade also requires protection from sunlight.

PVS brand

In contrast to the KGH and KGHN brand PVS shows resistance to the influence of direct sunlight, but at low temperatures is not the best way to behave. Therefore, in spite of the specified temperature range.25/40 C, this cable is better to use in the warm season. Number of cycles on bending. 30 thousand., service life. 6 years.

Cable cross-section for an extension cord

The minimum cross-section of the cable to be selected for the manufacture of an extension cord is 1.5 mm2. In this case, a 3.5 kW extension cord will be able to support a total load of 5 kW. Mark-size KG 3×1, 5 will be optimal for 220 V lines, KG 4 (5)x1, 5. for 380 V.

kind, extension, cord, lawnmower

It is important to note that if you increase the length of the carrier, the loss of power can be compensated for by a larger cross-section of the cable for the extension cord.

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