What wire for the lawnmower

Wire for an extension cord: what to choose for carrying, self-winding for a lawnmower, what you need for a grass trimmer. which consists of a garden

Selecting the optimal size of cable for the extension cord is not too difficult a problem for professionals. We will try to clarify it and for those who need this information in the domestic and semi-professional purposes.

It is believed that for an extension cord, it is best to choose cables with a sufficiently high class of flexibility and rubber insulation coating, which can withstand repeated bends, low temperatures well. These criteria are best met by KG

(cold-resistant versionKG-XL ) andKGH. In some cases, allowed the use of brands with PVC-insulation, for example, PVS orPRS.

Principle of operation

The principle of operation of an extension cord for a lawnmower for the end user is not much different from the mechanism of action of an ordinary power strip: the device is plugged into a socket, carried to the required distance (uncoiled to the desired length), where the device is connected to it, in this case. the lawnmower.

By their design, extension cords for lawnmowers are classified into “on a coil” and “on a spool” products. The second version is the most popular and preferred.

In turn, extension cords on a reel are also classified into 2 groups. Representatives of the first category look like a coiled extension cable, one end of which is equipped with a molded socket. The coil and plug are directly located on the other end, which is placed at the point of connection to a fixed outlet.

Such a design is very convenient to use. the user does not need to carry the coil itself, simply unwind the wire. Thanks to the design of the housing, unwinding and reeling of the cable is quick and effortless.

The second type of spool extension cord is noticeably different from the model discussed above: here the spool is equipped with several outlets, allowing you to connect more than one device at the same time.

Reels can be made of metal or plastic. The first option is more preferable and is characterized by improved durability and resistance to adverse external influences.

For use in conjunction with electric lawnmowers AL-KO, Gardena, Stiga, Bosch Rotac 32, STIHL, Makita, Champion are best suited spool extension cords of the first group, t.к. In accordance with safety regulations it is strongly not recommended to place the reel far away from a fixed outlet.

There are also models available that are made with a moisture-proof housing. if possible, use just such an extension cord for your lawnmower on a spool.

How to choose an extension cord

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

First, choose the optimal length of the extension cord. At this point, be guided by the size of your site. Additionally add a few meters “in reserve”.

Don’t get too carried away in this respect either. with every extra meter the cost of an extension cord increases substantially.

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

Given: rectangular section 20×30, t.е. Standard 6 acres.

Find the square of the diagonal of the area by summing the squares of its sides. Next, you need to extract the root of this value to get the length of the diagonal. In the case of this site it will be 36.06 m.

wire, lawnmower

The closest standard extension cord length is 40 m. Buy such a product. The reserve will go to compensate for turns, bends, etc.п. Round down the calculated length can be only if the fixed sockets are installed in different corners of the structure located on the site.

Secondly, we need to determine the appropriate cross section of the wire of the carrier. To do this, you need to know the power of the lawnmower (indicated in the passport of the product or on the body). The power of simple electric trimmers is usually not more than 2 kW, wheeled lawnmowers. up to 4 kW.

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

An extension cord designed for use with a lawn mower with a power rating greater than 2.5 kW should have a minimum cross section of 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 a model of an extension cord KG 3×1,5 mm from the popular brand Atlas.

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

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

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

  • An extension cord should be equipped with one rubberized outlet. The presence of two or more outlets will create difficulties in connecting an electric lawnmower and will cause inconvenience in the process of work.
  • Extension cords whose cord is colored orange are best for use with lawn mowers. This color is simply more visible on the ground, so the probability of accidental damage to the cable and the accompanying problems is minimized.
  • Due to the fact that the work on the lawn care is carried out mainly in the warm season, for use in conjunction with an electric lawn mower, it is preferable to choose an extension cord with PVS wire.
  • If the extender will be used not only in a complex with a lawn mower, but also for performance of various works in a cold season, give preference to models with wires KG.
See also  How to Start a Gasoline Grass Trimmer Properly

Key characteristics of extension cords

You can choose an extension cord according to different parameters and characteristics. The most important of them are:

  • the length of the extension cord;
  • the diameter of the wire;
  • The number of wires in one sheath;
  • The number and type of outlets installed;
  • type of insulation;
  • The color of the extension cord.

To determine the cable length, it is easiest not to rely on mathematical calculations, but to measure the distance from the connection point to the farthest point of the site. This can be done with an ordinary cord, laying it across the site without tension, and then measuring its length. It is necessary to take into account that in different years the location of beds, bushes, flowerbeds may change. Therefore, the length of the cable should be taken with a reserve.

The reserve should not be large. The whole cable gets hot during operation, but the part of it wound on a reel is not well-cooled, so the insulation of this part quickly loses its qualities. And the cost goes up.

The way in which the mower is connected to the coil must also be taken into account. Many mowers have a short cable to connect to the coil. It is clear that working on a large area with such a connection is not possible. An extra adapter cable between the coil and the mower is required. Usually its length is 5-10 m. The length of the extension cable on the reel can be reduced by this amount.

The cross section of the wire should be determined according to the wattage of the devices to be connected. Modern ride-on mowers with power output range from 1000 W to 2500 W. Minimal allowable diameter of one wire for 1000 W power is 0,75 mm, but for safety it is preferable to use wire with 1 mm cross-section. For a 2 500 W mower the cross section of 1,5 mm is optimal. Using wires with a smaller cross section leads to the loss of power, wasting energy, heating wires and, as a consequence, the destruction of the insulation.

When buying, you should pay attention to the marking: it indicates the current value for which the wire is designed. This is the maximum allowable value and is given for a fully unwound wire. If part of it is in a wound state, the maximum allowable value should be reduced.

It is not known in advance what devices and what power will be connected, so it is better to choose the cross section of the wire with reserve.

Usually, extension cords on a reel have 3 wires: phase, neutral, ground. Most modern electrical devices are supposed to work with a ground connection. But in some homes, especially vacation homes, grounding may not be. Therefore, buying an extension cord with 3 wires in this case makes no sense.

On the coil can be installed sockets of open and closed type. The second type is preferable, since the extension cord can work in conditions of high humidity, stay in the rain. If you intend to use it not only for mower operation, the more outlets the better.

The type of insulation is determined by the operating conditions.

The most popular and relatively cheap cable is sheathed in PVS. It can be operated at both negative and positive temperatures, but over time, due to temperature differences and exposure to sunlight in the insulation there are microcracks.

If you plan to use an extension cord in sub-zero temperatures, it is better to use an all-season extension cord marked KG. It is more expensive, but the cable is better protected from mechanical damage, microcracks do not appear in insulation.

The color of the wire is usually black, but orange is preferable. It is well visible both in bright sunlight and in the shade of the garden in the evening. Black wire is poorly visible, it is easy to run over it with a mower and cut it, usually resulting in a short circuit.

Recently, automatic coils have become popular. They are fixed to the ground with clips. Due to the tension, the wire unwinds, the length of its working part increases, and when the tension is loosened, it automatically winds up on the spool.

Some models are equipped with an automatic shutdown in case of overload or overheating.

When selecting an extension cord for your lawnmower, do not skimp. Its quality determines the convenience and safety of work.

nuances of conductor selection for carrying conductors

To make your own carrier, it is recommended to use a three-core soft-insulated cable. One strand is designed to serve as a protective grounding conductor. It is usually painted yellow-green. You should give preference to stranded copper wires in double insulation, preferably rubber. This is caused by operating factors: friction, bending, temperature effects, mechanical stress on the insulation layer, etc. д.

Varieties of Extension Cable

Now consider the most practical options for current carrying conductors to complete the extension cord, as well as the order of selecting the necessary cross-section.

Type KG

Frost-resistant type of cable that is recommended for outdoor use, but without prolonged direct exposure to ultraviolet rays. They contribute to the destruction of the rubber protective sheath of conductive cores. This type of cable line is excellent for carriers frequently exposed to bending and squeezing. Such conditions are typical for construction projects.

KG brand may be operated at temperatures from.40 to 50 degrees Celsius. Calculated number of bending cycles is not less than 30 thousand with a four-year service life.

KGH Grade

Can be used in corrosive environments. These include various chemicals, oils and sparks. Main technical characteristics:

PVS grade

Insulation layer of PVC plastic conductors is not destroyed by sunlight, but loses its plasticity at negative temperatures. In this regard, it is recommended to use PVS cable for carriers used at positive temperatures. According to the factory data, the service life of the brand PVS is more than six years at temperatures ranging from. 25 to 40 degrees Celsius. The wire is designed to withstand at least thirty thousand bending cycles.

See also  How to make a tornadic cultivator yourself

The ORS brand

This extension cord can be used both outdoors and indoors. Possesses the following indicators:

Selecting and checking the cable cross-section

The most commonly used cross-sections of 5 to 10 meter long extension cord wire are:

To independently select the cross section of the extension cable will need to take into account the length of the cable line and the planned load. These values directly affect the amount of power loss in the wire. They are compensated by using a larger cross-section of the conductor core.

Using extension cords with the wrong cross section may cause heating of the conductors, which is often accompanied by a short circuit.

To determine the required cross-sectional area of the cable for the extension cord, you will need to perform the following calculations:

  • Initially it is necessary to determine the planned power (P) of the consumers to be connected in order to calculate the current load on the wire. To do this, the following formula is used: I = P/U, where U is the mains voltage.
  • Using this value, select a suitable cross-section of conductors, according to Table 1.3.4 PUE.
  • Further it is necessary to check the selected cross-sectional area for compliance with the used cable length. To do this, the total resistance of the extension cable line is calculated using the formula: R = pxL/S, where:
  • p. specific resistance (0.0175 for copper);
  • L is the length of the carrying cable line;
  • S. the cross-sectional area selected in the second point.
  • The voltage drop is calculated: U = IxR.

Now it remains to determine the percentage of loss. To do this, divide the voltage drop by the value of the mains voltage and multiply by a hundred. If you get a value of less than five percent, the selected cross section and length of the extension cord meet the standards. If there is an excess of 5%, you will need to choose a cable with a larger cross-section. Then repeat the calculations from the third and fourth points.

Electrical Checks

Initially it is necessary to externally inspect all parts of the extension cord for their integrity.

I want to point out that this is a mandatory process that completes any activities with electrical wiring that will be plugged in under voltage. This will save a lot of mistakes and accidents.

Assembled electric extension cord must be checked for:

Evaluation of conductive cores

Took my tester and called up the electrical circuits. This technology I have painted a separate article.

So now I will not reveal in detail, but only point out that the short circuit, I have not made, the wires are connected to the socket and plug correctly.

Checking the dielectric insulating layer

The main purpose of this operation is to detect possible leakage currents through the broken insulation. This work is done with a special device. megohmmeter. It is usually not in the arsenal of home handyman tools. You have to go to the nearest electrical laboratory.

I did these operations at work. This includes:

Measuring the insulation between the conductors

Megohmmeter can be represented simplistically as a simple ohmmeter, which produces high voltage of different values and takes into account very small currents, converting them to units of resistance in ohms, kiloohms and megohms.

I checked with 500 volts and got the result in mega ohms.

Analyzing the quality of the dielectric layer of wires

The two conductive cores are shorted, and the entire wire of the insulation side except the plug and socket are placed in a vessel of water. One electrode is lowered in the same place to connect the end of the megohmmeter. If you use a metal container, you can make contact directly on it.

How to rewire a riding lawn mower super easy

The second end of the device is connected to the current carrying cores. From a megohmmeter applied voltage and the pointer monitors the leakage current from the metal cores to water. My insulation passed such a test successfully.

Work with the megohmmeter is classified as hazardous. They may only be performed by trained personnel with a minimum safety group III.

After completing the electrical checks, I boldly plugged in the extension cord to power the electric trimmer.

If you are interested in how to make an extension cord coil 30m, then watch the video of the owner of “amateur TV

I remind you that now it is convenient for you to ask a question in the Комментарии и мнения владельцев and share this material with your friends in social networks.

Cable Wattage Chart.

Table power cable is required to correctly make the calculation of the cross section of the cable, if the power equipment is large, but the cable is small, then it will be heating, which will lead to the destruction of insulation and loss of its properties.

To calculate the resistance of a conductor, you can use a calculator to calculate the resistance of a conductor.

For transmission and distribution of electric current are cables, they provide the normal operation of everything connected with electric current, and how good this work will be, depends on the correct choice of cable cross section power. A handy table will help you make the necessary selection:

Cross section of current-conducting cores. mm

Copper conductors of wires and cables

Aluminum conductor cores of wires and cables

But to use the table, you need to calculate the total power consumption of appliances and equipment that are used in the house, apartment or other place where the cable will be installed.

Example of power calculation.

Let’s say you are installing closed electrical wiring in the house with cable BB. On a piece of paper you need to rewrite a list of equipment used.

But how do you know the power?? You can find it on the equipment itself, which usually has a tag with the main characteristics written on it.

Power is measured in watts (W) or kilowatts (kW). Now you need to write it down and then add it up.

The resulting number is, for example, 20,000 watts, this would be 20 kW. This number indicates how much power all appliances consume together. Next you need to think about how many devices in a long period of time will be used at the same time. Let’s assume it turned out 80%, in which case, the simultaneity factor will be 0.8. Produce a calculation of the cross section of the cable according to the power:

wire, lawnmower

What extension cord to choose for the house, garage, cottage. 5 rules.

An extension cord is just as much a part of the electrical wiring in the.As necessary as plugs, switches, outlets, and other appliances.

See also  What bobbin to choose for your lawnmower. Reviews about the coil Bosch k101

You can see dozens of varieties in the store. Which one to choose and what parameters to pay attention to first of all.

Push Mower Cable Kill / Zone Cable Easy Fix Step By Step

Keep in mind that the longer the plug is, the greater the 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 for sockets are not needed to connect a large number of devices at once, and in order not to constantly pull the plug, thereby protecting against loosening contacts.

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

Many people do not 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 standard:

Wire brand. most often PVS with PVC insulation.

The diameter of the wire itself (not a single core) is desirable to have 5 mm or more. If this is not the case, the manufacturer is likely to have 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 changes in weather conditions. For street or garage use, this would be a better choice.

PVA wire drag a few times over the concrete floor, and its insulation will come to an end. KG is more resistant to such conditions of use. Other brands of cable can also be used:

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

Unfortunately, in the factory version, you can hardly find household extension cords with a cross-section of 2.5 mm2 in stores. Unless it will be coils or spools of great length, from 50 meters and above.

And besides, the increased cross section here is needed primarily to reduce voltage loss, not to connect more power.

Therefore, such models (with wires of 2.5mm2, 4mm2 and above) often master themselves.

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

Do a quality model must have protection against pulling and bending wire.

This applies equally to the plug and socket as to where the conductors enter the body of the extension cord.

Never work with a cord that is twisted together. Firstly, it will sooner or later damage the cores, and secondly, such a cable will elementary heat.

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

Before you buy an extension cord, look at what plug it has:

If the plug is not molded and can be disassembled, there is a risk of running into a questionable product. Such plugs are the easiest to produce by handicraftsmen.

To produce one-piece, 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. Using in this case, euro adapters and adapters at times increases the transition resistance.

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

Transient resistance of one contact in a new model must not be more than 0.05 ohms. During operation it can deteriorate to 0.1 ohm.

How to connect wires by crimping

Another way to connect wires is by crimping. This is a method in which copper or aluminum sleeve is put on the wires or cables to be connected, and then pressed with a special crimping tool. Hand crimping tools are used for thin connectors and hydraulic crimping tools for thick connectors. Even copper and aluminum conductors can be joined this way, which would not be possible with a bolted connection.

To connect using this method, the cable is stripped to a length greater than the length of the thermowell, so that after putting on the thermowell the wire peeked out 10-15 mm. If you crimp thin conductors, you can twist them beforehand. If the cable has a large cross-section, on the contrary, on stripped areas it is necessary to align the wire, put all the cables together and give them a round shape. Depending on local conditions, the cables can be laid with the ends facing in one direction or counterclockwise. It does not affect the reliability of the connection.

A sleeve is put on the prepared cables tightly or, in case of counter laying, the wires are inserted into the sleeve from both sides. If there is a gap in the sleeve, it is filled with pieces of copper or aluminum wire. And if cables do not fit in the sleeve, some wires (5-7%) can be bitten off with side cutters. If you do not have a thermowell of the right size, you can take a cable lug by sawing off its flat part.

The shell is pressed 2-3 times its length. The crimping points should not be on the edge of the thermowell. 7-10 mm must be removed from them to prevent the wire from being crushed during crimping.

The advantage of this method is that it allows you to connect wires with different cross sections and materials, which is difficult with other connection methods.

Related Posts

| Denial of responsibility | Contacts |RSS