Welding cable, which is often called a connecting cable, is used in almost all industries. Thanks to this material and modern technology, it is possible to weld metals as thin as a few microns. It is also used to connect structures of great thickness. To carry out high-quality welding work, it is necessary to use only a good welding cable. That is why different materials are used for different types of connections. The duration of operation of the welding equipment itself also depends on them.
How to choose the right welding cable?
The choice of this component material depends on the technical characteristics of the device itself. The cross section of the welding cable and its length are selected in such a way that the voltage drop (decrease) in the wires of the circuit is no more than 2 volts. It is defined as the voltage difference at the terminals of the machine's power circuit and between the electrode and the workpiece itself.
Today inThere are different classes of welding cable available for sale. They are used for different purposes and under different conditions. All of them are marked depending on the number of cores and the diameter of the section. Most often, for a flexible connection, the marking "KG" is used - a flexible welding cable. It consists of a thick (main) and zero core. Its cross section is 0.75-240 mm square. There are other brands of cable. The same material marked "T" indicates that it can be used in hot (tropical) climates, and with the designation "HL" it is intended for use in cold climates.
Brand "KGN" means that the welding cable has copper conductors and is covered with rubber insulation with an oil-resistant flexible sheath that does not spread combustion. This material is used at temperatures from -30 to +50˚С. Welding cable "KPG" has increased flexibility. It also has copper strands, rubber insulation and rubber coating. Cable section - 0, 75-95 mm square. This material is used to connect mobile welding machines to the mains. It is also resistant to temperatures from -30 to +50˚C. Welding cable "KG" 1x16 and 1x25 mm square is most often used for household welding equipment. For professional work, the KG stamps 1x70 and 1x95 mm square are used.
Prices for welding cable
The cost of this component material depends on its cross-section and the metal from which the cores are made. So, the cheapest ("KG" 1x10) welding cable, the price of whichconsidered for 1 m, can cost 50-55 rubles. in view of VAT. Well, the most expensive - "KG" 1x95 - will cost 350-360 rubles. Well, other types of welding cable have an even greater price.
Use cable for welding
For the perfect operation of any welding equipment and extending its life, you should choose only the cable that is recommended by the technical documentation. So, when choosing the required section, it is necessary to take into account the permissible current load. For different brands of cable "KG" there is a current load, measured in amperes: 1x16 - 189 A; 1x25 - 240 A; 1x35 - 289 A; 1x50 - 362 A; 1x70 - 437 A; 1x95 - 522 A.
