Magna cable plant Velikie Luki: products. Description of cable products

Explanation of cable VVGng(A)-LSLTx:
B - Insulation – low-grade PVC plastic fire danger
Vng-LS - Shell - made of PVC plastic compound of reduced fire hazard
D - Lack of protective coverings
(A) - Category for performance in terms of indicators fire safety
LTx - With low toxicity of combustion products

Design elements of the VVGng(A)-LSLTx cable:
1. Current-carrying conductor - copper, single-wire or multi-wire, round or sector-shaped, class 1 or 2 according to GOST 22483-77.
2. Insulation - made of PVC plastic with reduced fire hazard, insulated conductors have a distinctive color.
3. Twisting - the insulated cores of multi-core cables are twisted.
4. The inner shell is made of PVC plastic compound of reduced fire hazard with filling between the cores.
5. Shell - made of PVC plastic with reduced fire hazard.

Scope of application of the VVGng(A)-LSLTx cable:
VVGng(A)-LSLTx cables are designed for transmission and distribution of electricity in stationary installations at a rated alternating voltage of 0.66 and 1 kV with a frequency of up to 100 Hz or at a constant voltage of up to 1.5 kV, maintaining operability in case of fire.

Operating and installation conditions for the VVGng(A)-LSLTx cable:
The cables are intended for use in buildings of functional fire hazard classes F1-F3, including buildings of children's preschool educational institutions, specialized homes for the elderly and disabled, hospitals, dormitory buildings of boarding educational institutions and children's institutions, hotels, dormitories, dormitories of sanatoriums and houses rest general type, campsites, motels, boarding houses, as well as for entertainment, club, sports facilities, buildings of public service organizations, subways, as well as for nuclear energy facilities outside the containment zone of the nuclear power plant, as well as for operation in explosive zones of class B-1a
Fire hazard class according to GOST R 53315-2009 - P1b.1.2.1.2
Climatic UHL version, accommodation categories 3 and 4 according to GOST 15150-69
Operating temperature range: from -50 0 C to +50 0 C
Relative air humidity at temperatures up to +35 0 C up to 98%
Laying without preheating is carried out at an air temperature not lower than -15 0 C
Smallest bend radius:
- for single-core cables 10 max. outer diameters of the cable;
- for multi-core cables 7.5 max. outer diameters of the cable;
Cables do not spread fire when laid in groups according to category A
Smoke formation during combustion and smoldering of cables does not lead to a decrease in light transmission in the test chamber by more than 50%.
Mass fraction of hydrogen chloride released during combustion polymer materials, no more - isolation - 100 mg/g,
- outer sheath and protective hose - 80 mg/g,
- inner shell and separating layer - 50 mg/g,
Limit heating temperature of the cores under the condition of non-ignition of the cable at short circuit no more than 350 0 C
The construction length of the cables is set when ordering
Cables are environmentally friendly
The service life of the VVGng(A)-LSLTx cable is at least 30 years if the requirements for operation, transportation and storage are met.
You can order from us cable couplings (connecting, end) for cable VVGng(A)-LSLTx.
We recommend ENSTO, RAYCHEM, Progress couplings.

Wire and cable VVGng LS is the top of the family of cable products with abbreviation VVG, the secret of his privilege is the LS postscript, what it indicates and what it hides will be discussed in detail in this article.

Smoke in premises is considered the most important factor, increasing the risk negative consequences in case of fire. In case of fire at industrial facilities and large public buildings, cable routes become one of the main sources of smoke. The sad experience of the Ostankino TV tower, the Manege and other disasters of the last decade only confirmed this truth.

Currently, technical regulation documents strictly regulate the types of cable products that can be used for group installation inside public and industrial premises(GOST R 5315-2009). Here, in addition to the condition of non-propagation of combustion (-ng), one of the mandatory requirements was low smoke and gas emissions during combustion or smoldering of the cable.

LS designation, order of assignment

The decoding of VVGng LS is as follows:

• There is no letter A at the beginning of the marking, which means the cable is copper;
• B - the outer insulating layer consists of PVC insulation;
• B - core insulation consists of PVC insulation;
• ng - does not spread fire when laid individually or in groups;
• LS- L ow S mocke (translated from English easy smoke)

In the VVGng (..)-LS marking, after the category separated by a hyphen there is the designation LS, indicating low smoke gas emission ( L ow S mock). Of course, such an index can be assigned to a cable only if it is successfully tested for such an indicator. The standard procedure for testing for smoke formation during combustion and smoldering, a description of the installation, etc. are given in GOST R IEC 61034 -1(2)-2005.

The principle of the test is to measure the transparency of the air in the chamber with the cable before and after combustion. The smoke generated as a result of combustion of the sample reduces the light transmission of the volume, which is recorded by instruments. The result of the test will be the ratio of light transmittance before and after the experiment, expressed as a percentage. In accordance with GOST R 53769-2010, the cable is considered to have successfully passed the test if smoke reduced transparency by no more than 40%. In this case, the manufacturer has the right to put the LS index in the labeling.

Low smoke emission cable insulation

For the production of VVGng LS cable, PVC compounds of reduced fire hazard are required, and, in contact with fire, they should not cause large quantity smoke. In addition, it is required that the smoke be minimally toxic (toxicity indicator - no more than 40 mg/m 3 according to GOST R 53769-2010).

The task is complex, but it was successfully solved by selecting special additives - antipyrines and additives. Today, such plastic compounds are produced both in Russia and abroad. Domestic producers have registered several specifications, for example TU 2246-001-25795756-2009, and use them to produce plastic compounds specialized for core insulation, internal filling and outer sheath (grades PPI 30-30, PPV-28, PPO30-35, respectively).

VVGng LS cable structure

The composition and arrangement of the elements of the VVGng(..)-LS cable is no different from its counterparts - cables with copper conductors, with PVC insulation and sheath according to GOSTR 53769-2010. The external resemblance is clearly visible from the image shown in this section.

The VVGng(..)-LS cable can be round or flat, maximum quantity lived - five. The cores themselves can be single-wire or multi-wire, round or sector. The nominal values ​​of cross-sectional areas are selected from a standard series that is common to all.

Cable VVGng LS technical characteristics

Since the characteristics of the entire family of cables with PVC insulation of cores and sheaths are standardized by one standard GOSTR 53769-2010, they vary only within small limits between different manufacturers. The standard does not introduce separate indicators for the cross-sections and shape of the cores, the thickness of the insulation of conductors and sheaths, electrical resistance etc. for cables with insulation made of plastic compounds with reduced smoke generation. They go along with the entire family of PVC plastics. Separate values ​​are indicated for cross-linked polyethylene insulation, etc.

GOST 53769-2010 provides for -LS products some difference in minimum tensile strength; it may be less than that of VVG, but does not differ from VVGng. Therefore, the section "VVGng LS cable technical specifications"In terms of general characteristics, the cable of the VVG brand is practically no different from the section of the same name in the article. Read more general characteristics VVGng(..)-LS is possible.

Application of VVGng(..)-LS cable

VVGng - LS cables related to fire hazard classes P1.8.2.1.2 and

P1.8.2.2.2 can be used for group installation in residential and public buildings, internal and external cable structures on industrial enterprises. It is allowed to use the cable at nuclear facilities.

Other cable options

• - round copper wire with PVC insulation of the outer and inner layers, has low gas and smoke emission during combustion with single and group installation;
• VVG-P - same as VVG, but flat design;
• - round copper wire with PVC insulation of the outer and inner layers, has low gas and smoke emission during combustion when laid alone;
• VVGng-P - same as VVGng, but flat design;
• VVGng-ls - round copper wire with PVC insulation of the outer and inner layers, has low gas and smoke emission during combustion in single and group installations;
• VVGng-Pls - same as VVG-ls, but flat design;
• VVGng-frls - round copper wire with fire-resistant PVC insulation of the outer and inner layers, has low gas and smoke emission during combustion in single and group installations;
• VVGng-Pfrls - same as VVGng-frls, but flat design.

Power cable VVGng LS, the technical characteristics of which confirm low smoke emissions and, as a result, increased fire safety of the material.

Design features

A description of the design of an electrical cable brand VVG NG ls is given by GOST 22483. It includes a single-, double- or multi-wire conductor made of copper. A polyvinyl chloride composition characterized by a low fire hazard coefficient is used as an insulating material.

VVGNG technical power cables are produced both round and flat. There can be a maximum of 5 current-carrying cores in a wire. They come in round and sector shapes. The cores are insulated with polyvinyl chloride in a distinctive color. So, for example, the core responsible for zero has a coating blue color, and the grounding is covered with a greenish-yellow PVC composition.

Current-carrying conductors are of class 1-2, twisted, the wire is filled with extruded PVC plastic, characterized by low smoke and gas emissions. In two- and three-core models, cores of the same cross-section are used; in four- and five-core wires, one core has a smaller size.

The thickness of the plastic compound must be at least 0.3 mm; the sector cores do not need to be filled with an inner sheath of plastic compound; it is enough to overlap them with polyethylene terephthalate film or thermally bonded fabric. The outer covering is made of PVC composition.

Decoding the abbreviation

• the letter A at the beginning of the abbreviation means that the core material is aluminum; if the letter A is absent in the name of the cable, then the core is made of copper;
• the first letter B indicates the material used for internal insulation; this letter codes polyvinyl chloride;
• the second B denotes the material from which the outer shell is made, it indicates polyvinyl chloride;
• the letter G indicates absence protective coating(G – naked);
• the letters ng indicate that the wire is flame retardant;
• the English letters ls (low smoke) indicate that the wire has low smoke emission;
• the letter P means that the cable has an inner sheath made of thermoplastic polyethylene;
• the letters BB indicate the presence of an armored coating made of steel tape;
• the letters Шв give information about the outer layer of the polyvinyl chloride hose.

VVGng cable: technical characteristics

• operating frequency – 50 Hz;
• laying of communications is carried out at temperatures above -15 ° C, without preheating;
• cables are used in temperature conditions: from minus 30 °C to + 50 °C;
• when installing single- and multi-core VVGNG ls cable, a minimum bending radius of 7.5-10 outer diameters is allowed;
• prolonged heating of the cores up to a temperature of +70 °C is allowed;
• operating current with voltage up to 0.66 kV, wire with additional characteristics operates at higher voltages;
• cable combustion begins at a temperature of +400 °C;
• manufacturers guarantee safe work cable for 30 years, subject to compliance with technological discipline, it is recommended to check the cables in use every 5 years for insulation damage;
• it is allowed to operate communications in conditions high humidity and at high altitudes.

Decoding of other types of VVGng cable

• VVG – interpretation: standard copper wire, does not spread flame when laid alone, has polyvinyl chloride insulation of the inner and outer layers;
• VVGNG hf - no halogens, the wire is used in group laying, taking into account the volume of flammable load for rooms filled with working computer and microprocessor equipment, as well as in visited rooms a large number people;
• VVG PNG - interpretation: core insulation is made of thermoplastic polyethylene, flat design, used for making wiring in industrial buildings, non-flammable;
• vvgng p – conductors are laid in one plane, used for laying in air on cable racks or blocks, without mechanical stretching;
• kvvgng ls - control cable, fixedly attached to electrical appliances, devices and clamp assemblies, can be laid externally, in cable ducts and indoors, works in aggressive conditions, ensures fire safety of cable communications in group installations;
• VVGNG-frls - VVGNG frls cable is an analogue of the VVGNG-LS sample, with increased fire resistance, this is confirmed by the decoding of the letters frls (Fire Resistance Low Smoke), characterized by reduced formation of smoke and gas, prevents combustion in group gaskets;
• nym cable – power wire, application: stationary installation inside industrial and domestic buildings power and lighting lines. nym wires stand for “standard cable in the German classification with polyvinyl chloride insulation with an outer sheath.”

Weight and dimensions parameters of VVGNG cables include:

• number of cores;
• core cross-section in mm²;
• O.D;
• wire weight, kg/km. Gngi

An example of the weight and size parameters of a 3×1 5, 3×1 wire: number of cores 3 pieces, core cross-section 1.5 mm².

The weight of the VVGNG cable for current with an operating voltage of 660 V and 1000 V differs by several kilograms.

For example: 1 km of VVGNG 3×1 5 wire for a current voltage of 660 V weighs 96 kg, and for 1000 V - 122 kg.

Conclusion

The production of VVGNG wires has been established in almost every region of Russia. The cost of domestic products is significantly lower than imported products, with equivalent quality. To attract buyers, many manufacturers sell products directly from the factory, which allows them to reduce the price. For wholesale purchases, various promotions, discounts, and free shipping are provided.

Power cables with plastic insulation, flame retardant, low smoke and gas emissions for voltages up to 1 kV (ng-LS) TU 16.K71-310-2001

Scope of application
For transmission and distribution of electrical energy in stationary installations at alternating voltages of 0.66 and 1 kV and direct voltages up to 1 kV. Cables are manufactured for general industrial use and nuclear power plants for supply to the domestic market and for export. For use in NPP systems of classes 2, 3 and 4 according to classification OPB-88/97 (PNAEG-01-011-97). Climatic version of cable UHL-T, placement category 5 according to GOST 15150-69.
The cables are recommended for use in the construction of residential buildings, public buildings, facilities nuclear energy, metro. The cables correspond to the best foreign analogues.

Cables are made 1, 2, 3, 4, 5-core (A)
	(A) VVGng-LS Copper or aluminum, single-wire or multi-wire, round or sector compacted conductor Extruded PVC insulation with reduced fire hazard Outer sheath made of PVC plastic compound of reduced fire hazard
	(A) VBBShvng-LS Cores - single-wire or multi-wire copper (VBBShvng-LS) or aluminum (AVBbShvng-LS) conductor Insulation - PVC plastic compound of reduced fire hazard Inner sheath made of PVC with reduced fire hazard Armor made of two galvanized steel strips Outer shell - PVC plastic compound of reduced fire hazard

* With round cores.

Power cables, with PVC insulation, flame retardant, with low smoke and gas emission for voltage 6 kV TU 16.K10-016-2003

Scope of application
For transmission and distribution of electrical energy in stationary installations at alternating voltage up to 6 kV. Cables are manufactured for general industrial use and nuclear power plants for supply to the domestic market and for export. For use in NPP systems of classes 2,3 and 4 according to classification OPB-88/97 (PNAEG-01-011-97). Type of climatic version of the cable - B, placement category 5 according to GOST 15150-69.
terms of Use
VVGng-LS, AVVGng-LS, for installation in fire hazardous areas, provided there is no danger of mechanical damage. VBVng-LS, AVBVng-LS - for installation in cable structures and premises, incl. in fire hazardous areas in the absence of tensile forces during operation.

Main technical and operational characteristics

Power cable with flame retardant polyvinyl chloride insulation for alternating voltage up to 0.66 kV with a frequency of 50 Hz NYMng-LS TU 3521-039-05755714-2007

Scope of application
The cable is intended for the transmission and distribution of electrical energy in stationary installations for alternating voltage up to 0.66 kV with a frequency of 50 Hz. Climatic version of the cable is UHL, T, placement categories 1-5 according to GOST 15150-69. Fire safety class according to NBP 248-97- PRGP1.
terms of Use
The cable is intended for installation of electrical wiring and cable lines in industrial, residential and public buildings and structures, as well as in cable structures to ensure safe operation electrical equipment of protection class 1 electrical safety along with cables of the VVGng type. The cable can be used for laying power and lighting networks in explosive zones of classes V-1b, V-1g, V-IIa, as well as for lighting networks in explosive zones of class B-Ia.

Main technical and operational characteristics

Core colors

Information provided by Sevkabel-Holding OJSC specifically for the site

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For reference: The “Directory” section on the website is intended for informational purposes only. The directory was compiled by sampling data from open sources, as well as information coming from cable manufacturers. The section is constantly updated with new data and improved for ease of use.

List of used literature:

Electrical cables, wires and cords.
Directory. 5th edition, revised and expanded. Authors: N.I. Belorussov, A.E. Sahakyan, A.I. Yakovleva. Edited by N.I. Belorussov.
(M.: Energoatomizdat, 1987, 1988)

“Optical cables. Manufacturing plants. General information. Structures, equipment, technical documentation, certificates"
Authors: Larin Yuri Timofeevich, Ilyin Anatoly Aleksandrovich, Nesterko Victoria Aleksandrovna
Year of publication 2007. Publishing house "Prestige" LLC.

Directory "Cables, wires and cords".
Publishing house VNIIKP in seven volumes, 2002.

Cables, wires and materials for the cable industry: Technical reference book.
Comp. and editing: Kuzenev V.Yu., Krekhova O.V.
M.: Publishing house "Oil and Gas", 1999

Cable products. Directory

Installation and repair of cable lines. Electrician's Handbook
Edited by A.D. Smirnova, B.A. Sokolova, A.N. Trifonova
2nd edition, revised and expanded, Moscow, Energoatomizdat, 1990

Every strategically important facility is unlikely to be able to do without the use of fire-resistant cable. It is used as a high-tech tool for the transmission and distribution of electricity and signals. Fire-resistant, non-combustible cable is an indispensable component fire protection systems, smoke protection and warning and evacuation systems.

Scope of application

Fire-resistant cable products with low smoke emission KSRV ng(A)-FRLS and KSREV ng(A)-FRLS (analogous to KPSeng (A)-FRLS, KPSng (A)-FRLS) are intended for group and single installation in various systems fire safety: evacuation management in case of fire, fire alarm, emergency notification, fire detection, ventilation systems and automatic fire extinguishing equipment. This cable product remains operational for three hours in fire conditions. They are very successfully used to maintain the level of fire safety in industrial enterprises, shopping centers, medical and educational institutions, multi-storey buildings and office premises.

Indoors, the cable can be laid in special channels, along blocks, walls, ceilings, on support structures, hidden or open ways.

Description of cable products

Cable KSRVng(A)-FRLS It is a pair twisted cable with single-wire copper cores (diameter – 0.5, 0.80, 0.97, 1.13, 1.38 mm). Covered with insulating, ceramized silicone rubber, in a shell made of PVC plastic with the properties of reducing the fire hazard and minimal toxicity during combustion.

Cable KSREV (A)-FRLS has all of the above characteristics, but in addition, this type of cable includes a screen made of aluminum polymer tape, which serves as protection against electromagnetic interference.

Regulatory Compliance

The fire-resistant cable fully meets the requirements of all regulatory documents, including the “Technical Regulations on Fire Safety” GOST R 53315. The products are certified according to the fire safety system of class P1 b. 2.2.2. the GOST standard mentioned above.

Cable Specifications

• Fire resistance of the cable in case of fire – 180 minutes;
• Operating temperature range from -40 to +70 °C;
• Cable operation at alternating voltage – 250V;
• Cable operation under conditions DC– 300V;
• Maximum service life – 20 years;
• Manufacturer's warranty – 12 months.

Advantages of fire-resistant cable products

The advantages of fire-resistant cables KSRV ng(A)-FRLS and KSREV ng(A)-FRLS are obvious. They do not propagate the combustion process either singly or in a bundle. Capable of performing their functions in case of fire for a long time. Another important advantage is that the cable does not emit substances hazardous to human health when burning. chemicals: fluorine, bromine, chlorine and other aggressive gases.