Each 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. Flame-retardant, non-combustible cable - an indispensable part fire fighting systems, smoke protection and warning and evacuation systems.

Application area

Fire-resistant cable products with low smoke emission KSRV ng(A)-FRLS and KSREV ng(A)-FRLS (similar to KPSEng (A)-FRLS, KPSng (A)-FRLS) are intended for group and single laying in various systems fire safety: management of evacuation in case of fire, fire alarm, emergency notification, fire detection, ventilation systems and means of automatic fire extinguishing. This cable product remains operational for three hours in a fire. Very successfully used to maintain the level of fire safety in industrial enterprises, shopping malls, medical and educational institutions, high-rise buildings and office premises.

In rooms, the cable can be laid in special channels, along blocks, walls, ceilings, on supporting structures, hidden or open methods.

Description of cable products

KSRVng(A)-FRLS cable is a cable of pair twisting, with single-wire copper conductors (diameter - 0.5, 0.80, 0.97, 1.13, 1.38 mm). Covered with insulating, ceramized silicone rubber, sheathed with PVC-compound with fire hazard reduction properties and minimal combustion toxicity.

Cable KSREV (A)-FRLS has all of the above characteristics, but in addition this species The cable is provided with a screen made of aluminum polymer tape, which performs the function of 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 class P1 b fire safety system. 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;
• Operation of cables at alternating voltage - 250V;
• Work of cables in conditions direct current- 300V;
• The maximum service life is 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 both singly and in a beam. Able to perform their functions in case of fire for a long time. Also an important advantage is that the cable does not emit hazardous to human health during combustion. chemical substances: fluorine, bromine, chlorine and other corrosive gases.

Decoding (marking) Cables and wires of Russian production

Explanation (marking) of abbreviations used for the designation of power cables with PVC (vinyl) and rubber insulation (according to GOST 16442-80, TU16.71-277-98, TU 16.K71-335-2004)

A - (first letter) aluminum core, if there is no letter - copper core.
AC - Aluminum core and lead sheath.
AA - Aluminum core and aluminum sheath.
B - Armor made of two steel tapes with anti-corrosion coating.
Bn - The same, but with a non-combustible protective layer (not supporting combustion).
b - No pillow.
B - (first (in the absence of A) letter) PVC insulation.
B - (second (in the absence of A) letter) PVC sheath.
G - At the beginning of the designation - this is a cable for mine workings, at the end of the designation - there is no protective layer over the armor or sheath ("naked").
d - Waterproof tapes for sealing the metal screen (at the end of the designation).
2g - Aluminopolymer tape over the sealed screen.
Shv - A protective layer in the form of a pressed-out hose (sheath) made of PVC.
Шп - A protective layer in the form of a pressed-out hose (sheath) made of polyethylene.
Shps - Protective layer of extruded self-extinguishing polyethylene hose.
K - Armor made of round galvanized steel wires, over which a protective layer is applied. If it is at the beginning of the designation - the control cable.
C - Lead sheath.
O - Separate shells over each phase.
R - Rubber insulation.
HP - Rubber insulation and sheath made of flame retardant rubber.
P - Insulation or sheath made of thermoplastic polyethylene.
Ps - Insulation or sheath made of self-extinguishing flame retardant polyethylene.
Pv - Vulcanized polyethylene insulation.
BBG - Profiled steel tape armor.
ng - Non-combustible.
LS - Low Smoke - low smoke and gas emission.
KG - Flexible cable.

Cable with BPI - impregnated paper insulation (according to GOST 18410-73):

A - (first letter) aluminum core, in its absence - copper core by default. If in the middle of the designation after the symbol of the core material, then the aluminum sheath.
B - Armor made of flat steel tapes (after the shell material symbol).
AB - Aluminum armor.
SB - (first or second (after A) letter) lead armor.
C - Sheath material lead.
A - Separately leaded core.
P - Armor made of flat galvanized steel wires.
K - Armor made of round galvanized steel wires.
B - Paper insulation with depleted impregnation (at the end of the designation) through a dash.
b - No pillow.
l - As part of the pillow, an additional 1 lavsan ribbon.
2l - The pillow contains an additional double lavsan ribbon.
n - Non-combustible outer layer. Placed after the armor symbol.
Shv - outer layer in the form of a pressed-out hose (sheath) made of polyvinyl chloride.
Shp - The outer layer in the form of a pressed-out hose (sheath) made of polyethylene.
Shvpg - Outer layer of extruded PVC hose with low flammability.
(ozh) - Cables with single-wire conductors (at the end of the designation).
U - Paper insulation with elevated temperature heating (at the end of the designation).
C - Paper insulation impregnated with a non-draining compound. Placed in front of the designation.

Control cable (according to GOST 1508-78):

A - (first letter) aluminum core, in its absence - copper core by default.
B - (second (in the absence of A) letter) PVC insulation.
B - (third (in the absence of A) letter) PVC sheath.
P - Polyethylene insulation.
PS - Self-extinguishing polyethylene insulation.
G - Lack of a protective layer ("naked").
R - Rubber insulation.
K - (first or second (after A) letter) - control cable.
Krome KG - flexible cable.
F - Fluoroplastic insulation.
E - At the beginning of the designation - a power cable for especially mine conditions, in the middle or at the end of the designation - a shielded cable.

Hanging wires:

A - Aluminum bare wire.
AC - Aluminum-Steel (more often the word "steel-aluminum" is used) bare wire.
SIP - Self-supporting Insulated Wire.
ng - Non-combustible.

Power, installation wires and connecting cords:

A - Aluminum, the absence of the letter A in the wire brand means that the current-carrying core is made of copper.
P (or W) - the second letter, denotes a wire (or cord).
R - Rubber insulation.
B - PVC insulation.
P - Polyethylene insulation.
N - Nairite rubber insulation.
The number of cores and the cross section are indicated as follows: put a dash; write down the number of veins; put a multiplication sign; record the cross section of the vein.
In the brands of wires and cords, there may be other letters characterizing other structural elements:
D - double wire.
Oh - Braid.
T - For laying in pipes.
P - Flat with a dividing base.
G - Flexible.

Mounting wires:

M - Mounting wire (placed at the beginning of the designation).
G - Stranded core (the absence of a letter indicates that the core was single-wire).
Ш - Polyamide silk insulation.
C - Film insulation.
B - PVC insulation.
K - Kapron insulation.
L - Lacquered.
C - Fiberglass winding and braid.
D - Double braid.
O - Polyamide silk braid.
E - Shielded.
ME - Enamelled.

Explanation (marking) of some special abbreviations:

KSPV - Cables for Transmission Systems in Vinyl Sheath.
KPSVV - Cables Fire Alarm, Vinyl insulated, Vinyl sheathed.
KPSVEV - Fire Alarm Cables, with Vinyl insulation, with a Screen, in a Vinyl sheath.
PNSV - Heating wire, Steel core, Vinyl sheath.
PV-1, PV-3 - Wire with Vinyl insulation. 1, 3 - core flexibility class.
PVA - Vinyl Sheathed Wire Connecting.
SHVVP - Cord with Vinyl insulation, Vinyl sheath, Flat.
PUNP - Universal Flat Wire.
PUGNP - Universal Flat Flexible Wire.

Rinterpretation (marking) Cables and wires of foreign production

Power cable:
N - Indicates that the cable is manufactured according to the German VDE standard (Verband Deutscher Elektrotechniker - Union of German Electrical Engineers).
Y - PVC insulation.
H - Absence of halogens (harmful organic compounds) in PVC insulation.
M - Mounting cable.
C - The presence of a copper screen.
RG - Availability of armor.

FROR - cable made in Italy, has specific designations according to the Italian standard CEI UNEL 35011:

F - corda flessibile - flexible core.
R - polivinilclorudo - PVC - PVC insulation
O - anime riunite per cavo rotondo - round, not flat cable.
R - polivinilclorudo - PVC - PVC sheath.

Control cable:

Y - PVC insulation.
SL - Control cable.
Li - The stranded conductor is made according to the German VDE standard (see above).

Halogen-free flame retardant cable:

N - Manufactured according to the German VDE standard (see above).
HX - Cross-linked rubber insulation.
C - Copper screen.
FE 180 - In case of fire, the integrity of the insulation, when using a cable without a fastening system, is maintained for 180 minutes.
E 90 - In the event of a fire, the cable will remain functional for 90 minutes when laid together with the fastening system.

Mounting wires:

H - Harmonized wire (HAR approval).
N - Compliance with the national standard.
05 - Rated voltage 300/500 V.
07 - Rated voltage 450/750 V.
V - PVC insulation.
K - Flexible core for fixed installation.

XLPE cables:

N - Manufactured according to the German VDE standard (see above).
Y - PVC insulation.
2Y - Polyethylene insulation.
2X - XLPE insulation.
S - Copper screen.
(F) - Longitudinal sealing.
(FL) - Longitudinal and transverse sealing.
E - Three-core cable.
R - Armor made of round steel wires.

How to decipher the cable brand?

Let's take for example a very common cable: AVVG (ozh) -0.66 kV 4x35 and analyze its marking.

4x35 - this cable has 4 cores, 35 sq. mm each. each. The number of cores for most cable groups is from 1 to 5. But for control ones, for example, from 4 to 37. Each core has a cross section. The cable has a cross section range from 1.5 to 800 sq. mm. for low voltage cable.

0.66 kV - voltage. For this cable, it is 660 V. Cables are low-voltage (0.38 -1 kV), medium (6-35 kV) and high (110-500 kV) voltage.

(OJ) - execution - single-core. This means that the vein is monolithic, seamless. If there is no “ozh” in the brand, then this means, by default, that the execution is stranded (mp) or stranded (mn).

G - flexible or unarmoured.

B - vinyl. Sheath made of polyvinyl chloride (PVC) plastic compound.

B - vinyl. Insulation made of polyvinyl chloride (PVC) plastic compound.

A is aluminum. Aluminum conductor.

All letter markings start from the core. If there is a letter A, then the conductive core is aluminum. If the letter A is missing, then the conductor is made of copper.

Depending on the group of use, the following symbols may appear in cable marking:

AVVG-P. Plosky, insulated cores are laid parallel in one plane.

AVVGz. Filled, filled with rubber compound.

AVVGng-LS. ng - non-flammable, PVC compound of low flammability. LS - "low tuxedo" (low smoke emission), PVC of low fire hazard.

AVBbShv.

B - armor made of steel tapes

Ш - protective hose made of PVC compound.

in - vinyl. Insulation made of polyvinyl chloride (PVC) plastic compound.

ASB2lG, ASKl, TsSB.

C - lead sheath.

2l - two lavsan ribbons

G is naked. Protective cover made of two galvanized steel strips.

K - a protective cover made of round steel galvanized wires.

C - paper insulation impregnated with a non-drip composition.

K - control

E - screen common from aluminum foil over twisted strands

APvBbShp.

P - insulation made of silanol-crosslinked polyethylene.

p - outer sheath made of polyethylene.

APvPu2g.

y - reinforced polyethylene sheath

2d - "double sealing", insulation made of cross-linked polyethylene with aluminum tape over the sealed screen.

KG - flexible cable.

Deciphering wire markings.

Now consider the question of how to decipher the wire markings. Wires, as well as cables, are marked with letters, after which the number and cross-sectional area of ​​\u200b\u200bthe conductive cores are recorded in numbers. When designating a wire, the following structure is adopted. In the center is the letter P, denoting the wire. The letters P can be preceded by the letter A, indicating that the wire is made of aluminum conductive wires; if there is no letter A, then the conductors are made of copper.

Following the letter P is a letter characterizing the material from which the wire insulation is made:

R - rubber insulation,

B - PVC (polyvinylchloride) insulation

P - polyethylene insulation

If the wire has a braid of cotton yarn coated with varnish, then this is indicated by the letter L, and if the yarn is impregnated with an anti-rotten compound, then the letter in the brand of the wire is omitted. The letter L is placed in last place in the designation of the brand of wire.

Wires for electrical installations stamps

PV have digital indices 1; 2; 3 and 4. These numbers indicate the degree of flexibility of the wires. The higher, the more flexible the wire.

Wires for overhead power lines are deciphered as follows:

SIP - self-supporting insulated wire. Light stabilized cross-linked polyethylene insulation.

SIP-1 - with uninsulated neutral

SIP-2 - with isolated neutral

SIP-4 - with insulated conductors of equal cross section.

A - bare wire, twisted from aluminum wires

AC - bare wire, consisting of a steel core and aluminum wires

New regulatory requirements developed in accordance with Federal Law No. 123 "Technical

Regulation on fire safety requirements", regulate the need

Use in the installation of communication lines fire-resistant cable to ensure the required

System uptime in case of fire.

According to clause 4.1 of the set of rules SP 6.13130.2009 "Fire protection systems.

Electrical equipment. Fire safety requirements": " cable lines systems

fire protection must be carried out with fire-resistant cables with copper conductors, not

Flame-propagating for group laying according to category A according to GOST R IEC 60332-3-22

Low fume and gas emission (ng-LSFR) or halogen-free (ng-HFFR)."

Preferred areas of application of cable products, taking into account their type of execution

Defined in GOST R 53315-2009 and GOST R 53769-2010.

Primary scope of fire-resistant cable

When designing security systems, a cable is often included in the project with the ending

In the marking ng -FRLS (for example, the cable KPSeng FRLS 1x2x0.5), although it is more logical to use

Cable ng-FRHF (KPSEng FRHF 1x2x0.5).

The LS index, which is an abbreviation for Low Smoke, literally means "low

Smoke emission" seems to be more understandable compared to the HF - Halogen Free index, which

Means "halogen-free". Perhaps this is the reason why more

Applied ngFRLS cable than flame retardant cable with ngFRHF index. Obviously the role is the same

The fact that the price is always a little lower for the KPSeng FRLS cable plays.

According to GOST R 53315--2009 with amendment No. 1 "Cable products. Fire safety requirements

Safety "ngFRLS cable is used" for laying, subject to the amount of combustible load

Cables, in internal electrical installations, as well as in buildings, structures and closed cable

Structures", while the fire-resistant cable ng FRHF - "for laying, taking into account the volume of combustible

Cable loads, in internal electrical installations, as well as in buildings and structures with mass

Stay of people, including in multifunctional high-rise buildings and buildings-

Complexes".

Class fire hazard cable

According to GOST R 53315--2009 in the designation of the fire hazard class:

• the first indicator is the flame propagation limit (O1 or O2 for a cable, tested singly, or P1 - P4 for a cable product tested during group laying)
• the second is the fire resistance limit;
• the third is an indicator of corrosion activity;
• the fourth is an indicator of toxicity;
• the fifth is the indicator of smoke formation.

So a cable with a declared fire resistance of at least 180 minutes of the ng (A) -FRLS type (for example, KPSEng

FRLS 1x2x1) has a fire hazard class P1b.1.2.2.2

Cable type ng(A)-FRHF (for example cable KPSeng FRHF 1x2x1) - has a fire hazard class

P1b.1.1.2.1. Accordingly, the use of the ng(A)-FRHF cable provides not only the minimum

Emission of corrosive gases, but also significantly less smoke emission compared to

Cable ng(A)-FRLS. Therefore, for complete clarity, the cable ng (A) - FRHF is correctly called

Flame retardant, halogen-free and smokeless, flame retardant in group

Gasket.

Halogens, Corrosivity and Toxicity

ngFRLS cable (for example, KPSeng FRLS 2x2x1 cable) when exposed to high temperatures and

The flame releases halogens. The most famous of them are chlorine and fluorine. it toxic substances and

Vigorous oxidizing agents that cause corrosion, which seriously limits the possibilities of application

Such a cable. In case of fire, highly toxic chloride gas

Hydrogen, escaping from the cable insulation that collapses under the influence of temperature,

It spreads over the object and, connecting with water vapor, condenses in the form

concentrated hydrochloric acid.

Permissible according to GOST R 53769-2010 values ​​of indicators of corrosive activity of products

Smoke and gas emissions during combustion and smoldering of insulation materials, shells and protective

Cable hoses with index LS and index HF differ by 28 times!

Smoke emission

The ngFRLS cable (for example, the KPSEng FRLS 1x2x0.75 cable) is quite smoky - when it

Destruction in a flame according to GOST R 53315-2009, a decrease in light transmission up to 50% is permissible,

Decryption cable VVG ng(A)-LSLTx:
B - Insulation - PVC compound of reduced fire hazard
Vng-LS - Sheath - PVC compound of low fire hazard
G - Lack of protective covers
(A) - Performance category in terms of fire safety indicators
LTx - With low toxicity of combustion products

Structural elements of the VVGng(A)-LSLTx cable:
1. Conductor - copper, single-wire or multi-wire, round or sector-shaped, class 1 or 2 according to GOST 22483-77.
2. Insulation - low fire hazard PVC, insulated cores have a distinctive color.
3. Stranding - the insulated cores of multi-core cables are twisted.
4. The inner sheath is made of low fire hazard PVC with filling between the cores.
5. The sheath is made of PVC compound of reduced fire hazard.

Scope of cable VVGng(A)-LSLTx:
cables VVGng(A)-LSLTx 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, which remain operational in case of fire.

Operating and installation conditions for VVGng(A)-LSLTx cable:
The cables are intended for use in buildings of F1-F3 functional fire hazard classes, including preschool buildings. educational institutions, specialized nursing homes and disabled people, hospitals, dormitory buildings of boarding schools and children's institutions, hotels, hostels, dormitories of sanatoriums and rest homes general type, campsites, motels, boarding houses, as well as for entertainment, club, sports facilities, buildings of public service organizations, subways, as well as for objects using nuclear energy outside the NPP containment, 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 version UHL, placement categories 3 and 4 according to GOST 15150-69
Operating temperature range: from -50 0 С to +50 0 С
Relative air humidity at temperatures up to +35 0 С up to 98%
Laying without preheating is carried out at an air temperature of at least -15 0 С
Smallest bend radius:
- for single-core cables 10 max. cable outer diameters;
- for stranded cables 7.5 max. cable outer diameters;
Cables do not propagate combustion during group laying 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,
The maximum heating temperature of the conductors according to the condition of non-ignition of the cable at short circuit no more than 350 0 C
Construction length of cables is set when ordering
Cables are environmentally friendly
The service life of the VVGng(A)-LSLTx cable is at least 30 years, subject to the requirements for operation, transportation and storage.
You can order from us cable sleeves (connecting, terminal) for VVGng(A)-LSLTx cable.
We recommend ENSTO, RAYCHEM, Progress couplings.

The VVG-ng cable is a representative of a fairly wide group of conductive products used to provide electricity to production shops and offices, for laying in walls, pipes and tunnels, for street lighting. Any electric installation work in the construction of private housing or multi-storey buildings require the use of this particular type of material. The VVG-ng cable is designed for laying in places where it is necessary to avoid fire. It consists of conductive copper filaments enclosed in an insulating sheath and covered with a common film on top. All cable components are designed to continue delivering electricity to its intended destination in the event of a fire.

Types of VVG-ng cable and its marking

Products marked VVG-ng include several types of cable that differ in their characteristics. In order to distinguish each of them, a marking was invented, including information on the composition of the conductive thread and its cross section, on the insulating sheath and its properties, and on the features of the cable.

So, the abbreviation VVG-ng means:

• Thread material - copper (by default). If the thread is aluminum, then the letter A (AVVG) is in front of the designation
• BB - means that PVC compound was used to insulate copper threads and the outer sheath of the cable
• G - means "naked". The cable has no protective coating as metal plate or other material. Such protection is present in products with a larger cross section.
• ng - means "non-combustible", does not spread combustion when laid alone and in a group. Cable manufacturing technology helps to limit its ignition. Such a cable does not burn in a fire, but melts.

When designating products, other signs can also be used:

• VVG-ng-LS - cable has low smoke emission (LS)
• VVG-ng-NF - cable insulation does not contain halogen materials (NF)
• VVG-ng-P - the cable has a flat shape and can be used for laying under plaster (P), it is fire resistant
• VVG-ng-FRLS - the cable is fire resistant (FRLS) and in the event of a fire will continue to supply electricity for a certain time (usually 60-180 minutes)

Along with letters numbers are used when marking the cable. They reflect the number of copper threads and the cross-sectional area of ​​​​one thread in square millimeters:

• Marking VVG-ng-LS 3 x 50 + 1 x 25 means that the cable has two sheaths made of PVC plastic (copper strands sheath and a common outer sheath - VV), has no protection (G), has low flammability (ng) and low emission smoke (LS). The number of copper threads is 3 with a section of 50 mm (3x50), and one thread has a section of 25 mm (1x25)

The marking also includes the operating voltage of the cable. It is indicated in kilowatts, for example:

• VVG-ng-LS 3 x 50 + 1 x 25 -1 operating voltage of this cable is 1 kV (number 1 in the marking)

The VVG-ng cable is a universal conductive product used in wet conditions and at altitudes up to 4300 meters. Application temperature ranges from +50 to -50°С, maximum permissible humidity- 98% (at +40°С).