Flexible multi-core copper cables with rubber insulation

Flexible multi-core power cables are used in various areas of production and consumption. Such as, for example:

1. Arrangement of production enterprises. Indispensable for connecting lifting mechanisms, mobile machines, machine tools and robotic equipment, where it is necessary to ensure the safety of the cable during intensive bending and movement. Almost no manufacturing enterprise can do without laying this cable, be it the food, chemical or metalworking industries.
2. Mining industry. This area itself is associated with increased risks of damage, including to equipment. Therefore, copper flexible cable, due to its practical properties, is an ideal solution for connecting a mobile conveyor and other electrical systems to power networks with voltages up to 10 kV.
3. Mobile installations. The cable is suitable when it is necessary to locate equipment outside the area of ​​its constant use, for example, temporary connection of lighting fixtures at a remote location or operation of an electric pump.
4. Fire safety systems. No bending damage, fire resistance and long service life are the optimal criteria for equipping a building.

Advantages of a flexible cable:

• The operating temperature range ranges from –50°C to +50°C;
• Even with repeated bending, the practical properties of the cable do not change;
• Laying can be carried out both inside buildings and premises, and outdoors;
• Lifetime;

Flexible four-core power copper cable.

What is cable KGVVng(A)-LS

KGVVng(A)-LS - flexible non-flammable power cable is in demand among consumers, which is easily explained by the ideal ratio of the quality of this type of product to its pricing policy. This product has fairly high characteristics, which puts it at a higher level compared to similar products from other manufacturing companies. The wire of this brand, which has a special plastic polyvinyl chloride insulating coating, is not prone to burning. It is also characterized by a low smoke index, since during the combustion process there is a slight smoke emission, which is confirmed by the ng(A)-LS index in the abbreviation.

Characteristics of flexible copper multicore cable in PVC insulation

Increased flexibility is achieved by:

• instead of aluminum, copper is used, which has a lower resistance and allows the use of a smaller cross-section;
• the use of two or more cores creates greater elasticity.

What multi-core cables and wires look
like Note! The flexibility index of copper wire is determined according to GOST 22483-2012.

Advantages and disadvantages

Flexible multi-core cable has become widespread due to its high performance characteristics:

• high corrosion resistance allows it to be used without replacement for 30-35 years;
• the plasticity of copper allows you to lay the wire along a radius without creases;
• the dielectric coating made of polyvinyl chloride is durable, wear-resistant, and has good resistance to chemical environments;
• The electrical conductivity of copper is 1.7 times higher than that of aluminum, which makes it possible to use wires with a smaller cross-section.

Copper wire coil
Despite the many advantages, this cable also has disadvantages:

• the cost of copper is several times higher than the cost of aluminum, which affects the price of wires;
• due to its high density, copper wire is almost three times heavier than aluminum;
• they cannot be connected by ordinary twisting; special terminal clamps must be used;
• PVC coating, when heated, releases hydrogen chloride, a harmful halogen, so the wires should not be heated above 70 °C.

Important! Halogen is harmful to both humans (causes suffocation) and metals (promotes corrosion).

Characteristic features of KVVGng(A)-LS

• The climate solution for this type of product is UHL; T. In accordance with GOST, it belongs to the fifth category.
• The temperature range permissible for operating the product is quite high, but has its limitations - from minus fifty to plus fifty degrees Celsius.
• Installation work when laying cables is carried out if the air temperature is not lower than minus fifteen degrees.
• Acceptable humidity levels at air temperatures up to plus thirty-five are up to ninety-eight percent.
• The toxicity of the released products when the product is heated does not exceed forty grams per cubic meter. Their quantity is no more than one hundred and forty milligrams per gram.
• The temperature of the wire in normal operation should not be higher than seventy degrees. Under overload conditions, the readings increase to ninety degrees.
• The possibility of fire occurs when the product is heated to three hundred and fifty degrees Celsius. Prolonged heating of the wire is possible only in a strictly limited temperature range up to plus seventy degrees Celsius.
• The service life is thirty years or more.

Specifications:

• The cable is designed for connection to electrical networks at a nominal alternating voltage of 660 V, frequency up to 400 Hz or at a constant voltage of 1000 V.
• service life, depending on the type, is on average 4-5 years.
• The operating temperature range ranges from –50 °C to +50 °C.

Explanation of marking KGVVng(A)-LS

To make product selection easier, product labeling is provided. The abbreviation has its own interpretation, indicating the main characteristics of the wire.

KGV is a flexible cable with an insulating plastic polyvinyl chloride coating.

(A) – classification of fire safety indicators.

LS – low level of smoke emission during combustion.

Vng - the presence of an external plastic polyvinyl chloride coating, which is characterized by low flammability.

Buy rubber insulated cable wholesale.

Multi-core flexible copper cable and other products of the cable and electrical industry in a wide range can be purchased wholesale in. Our specialization is comprehensive wholesale supplies combined with an individual approach to each customer and each application. We have a variety of quality products from the best manufacturing enterprises, a wide range of brands. To deliver goods on time, without delays and unnecessary red tape, we have our own warehouses and branches in different parts of our country.

Today, to purchase a cable with flexible copper cores, you do not need to waste time searching for a reliable supplier; you just need to contact SES LLC. At your service: a wide range of products, many years of experience, allowing us to provide you with qualified support when choosing and ordering.

Flexible copper power cable - price and terms of wholesale deliveries.

When making transactions to complete a product range with goods such as flexible copper power cable, the price depends on many factors. First of all, this is, of course, a seasonality factor, which is formed from the dynamics of the cost of non-ferrous metals and fluctuations in the current demands of the consumer segment of the market. The latter have a direct relationship with the seasonal cycle of electrical installation work, and with the economic and political picture in general. It is also impossible not to take into account that the cost of a copper flexible cable, like the cost of any cable and wire products, depends on the total volume and required delivery time. So, for example, if you purchase copper flexible power cable in bulk, or as part of an order that includes the wholesale volume of another product, the price will always be lower than for retail sales. With us, to buy flexible copper power cable in bulk from stock at the lowest possible prices, and with delivery to the site on time. In order to reduce delivery times, as well as to reduce the final transaction price, delivery is carried out from the warehouse closest to your region.

In addition, we will deliver your order using your preferred mode of transport: road transport or rail transport. If installation of ordered cables is required, we will additionally carry out cable laying using our own highly qualified specialists. Place an order using the form on the website or by phone.

Design features

The core is the basis of the wire and the main conductor of electric current. In accordance with GOST, it consists of several individual copper wires having a round shape.

The insulating coating is plastic polyvinyl chloride with low flammability properties.

Grounding is characterized by a yellow-green color.

Twisting is individual strands intertwined with each other.

The outer covering is plastic polyvinyl chloride with low flammability properties.

Design

The basis of the CG are conductive conductors made of copper. They are covered with insulation and enclosed in an outer rubber shell. Also in the structure of the wire there is a separating synthetic film, which directly covers the copper conductors.

Flexible power cable

CGs are distinguished by the shape of the strands:

1. Midwife;
2. Beam.

Stranded twist

This position of the cores is technologically much cheaper for the manufacturer than bundle laying. The conductors in the CG are twisted into separate groups, which, in turn, are twisted into a single core. Extruded polymer insulation is placed on top of it. If technical conditions require shielding, then the cores are wrapped with synthetic tape or foil.

At the beginning of operation, the difference between the outer and inner bending radii has virtually no effect on maintaining the integrity of the copper wire. Over time, metal fatigue accumulates in conductors, which ultimately leads to irreversible deformation. Copper strands bend, forming areas of excessive compression and tension within their structure. After some time, the cable core is destroyed.

Bundle twist

The unique technology of core structuring is that instead of layer-by-layer twisting, the cores are twisted in bundles around an elastic core. Avoiding the formation of multicore layers, they achieve the same bending radius for all conductors.

In the place where the CG bends, the line of action of each core instantly shifts from the inside to the outside of the cable. It turns out that the cores do not compress or stretch separately on the outer and inner sides of the bend.

The KG sheath keeps the cores from unwinding. For this purpose, it is not enough to form a surface insulating layer by pressing alone. Only the internal pressure of the shell can keep the core from unwinding. The rubber outer coating is made using special technology.

As a result, the multicore cable behaves more rigidly in dynamic mode than its standard prototype. However, this achieves the durability of the CG.

Important! For portable electrical installations, only stranded wire is used. Previously, such cables were called cords. Today this name is relevant.

Scope of application of cable KGVVng(A)-LS

The main purpose of the product of this brand is the installation of lighting lines on various mechanisms, power lines at frequencies up to sixty Hz and voltages up to a thousand volts. The possibility of operation is not limited to the indicated indicators. the wire can be used at voltages up to one kW.

The recommended place of use is any structure and room in which the possibility of accidental mechanical damage to the cable is excluded.

On the company's website you will find a price list that lists all prices for products of this type. Absolutely anyone can buy the product. To clarify any information and place an order, you must call one of the phone numbers listed on our website. Delivery of products is carried out in a very short time after receipt of funds in our account. Payment can be made in a way convenient for you. As for custom products that are not in stock, in this case they are shipped according to a different schedule. The delivery time to your site is negotiated individually with our company employees. For regular customers, a flexible system of discounts is provided, the size of which is ambiguous and depends on the quantity of wire ordered.

— price list, current prices, buy from stock and to order, delivery throughout the Russian Federation

Areas in which flexible copper cable in rubber insulation is used:

• for operation of welding equipment;
• in ventilation systems and fire extinguishing systems;
• when operating household appliances;
• for connecting industrial and production equipment, electric pumps;
• construction, construction of buildings and many others.

The design of a copper flexible cable consists of conductive conductors, the number of which, depending on the purpose of the cable, can vary from 2 to 91. Insulation made of polyvinyl chloride with reduced flammability, polyethylene, elastomers or variations of polymer compositions is laid on top of the conductors. The top shell is made of rubber, polyurethane, polyethylene or PVC. To enhance resistance to mechanical damage, galvanized steel armor can be additionally used.

Cable KVTREVBng(A)-HF

The KVTREVBng(A)-HF cable is used to connect components, equipment and mobile systems, connect electrical networks of internal and external installations.
Operation in a variety of environments including land, rivers, lakes and temperate climates ensures the benefits of application throughout the country. Order

These systems are designed for alternating voltage up to 690 V with a frequency of up to 400 Hz and are marked as AKNRB and KNRTU. The marking data is deciphered as follows:

1. In the first case, we are talking about an aluminum (indicated by the letter “A”; in its absence, copper is used by default) marine cable (indicated by the symbol “K”) made of non-flammable rubber (letter “N”) with an armored coating (letter “B”).
2. The KNRTU type also defines a fairly simple decoding that describes in detail the basic properties of the wire. K - ship cable, the main type to which it belongs. N - a rubber layer is installed that is not exposed to open fire and does not ignite. P - there is a layer of rubber coating. T - used to create control circuits and telephone connections. U - the wire design is reinforced, which makes it possible to use it under conditions of frequent mechanical stress.

Rubber insulation: advantages and disadvantages

Let's look at the main pros and cons of rubber as an insulating and protective coating.

To eliminate or minimize shortcomings in the manufacture of rubberized cable sheaths, for example, vulcanization technology is used. The introduction of sulfur atoms or organosilicon substances into the structure of rubber molecular bonds improves the moisture, oil, electrical and fire resistance of rubber.

Cable PVMR-8

The PVMR-8 cable is used to connect to the electrical network and power supplies of special high-power industrial equipment.
It is used in alternating, pulsed, and direct current circuits with operating voltage ratings of 8 kV, 12 kV, 16 kV, since its core is twisted from strong copper wires. Order

To comply with operating conditions, a special coating of the outer layer is used, such wires include RK 50-7-28, the explanation of which is presented below:

• The first two letters indicate that this type belongs to radio frequency cables.
• 50 indicates resistance.
• 7 is used to determine the insulation diameter.
• The last two digits indicate the heat resistance category and the development number in order.