КВБбШвнг(А)- FRLSLTx - (KVBbShvng(A)- FRLSLTx)

SCOPE AND PURPOSE

The cables are designed for fixed connection to electrical devices and equipment, to assemblies of clamps of electrical switch gear with the nominal alternating voltage up to 660V of frequency up to 100 Hz or direct voltage up to 1000V, for group installation with taking into account the volume of combustible load of the cables in buildings, in fire protection systems, fire alarm systems, warning and evacuation in case of fire in buildings, construction and structures with mass stay of people (industrial plants, schools, hospitals, office buildings, railway stations and so on). The screened cables are used when it is necessary to protect the electrical circuits from the influence of external electric fields. The armored cables are used in case of danger of mechanic damage in process of operation, if the cable is not exposed to significant tensile force

The class of fire hazard of the cables according to GOST 31565 П1б.1.2.1.2

TECHNICAL DATA

Nominal voltage, kV : 0,66

Ambient temperature during cable operation, °С: from -50 to +50

Durably allowable temperature of heating of conductors during operation, °С: +70

Minimum bending radius of the cables at installation, diameters of the cable: armored 10, non-armored 6

The ambient temperature for installation of the cables (without preheat), °С, not below: -15

Smoke generation in the test cell: not more than 50 %

Fire resistance of the cable, minutes, not less than: 180

Service life, years, not less: 30

The cables do not spread combustion at group installation on category: А

Equivalent toxicity index, g/m3 , more than: 120

STRUCTURE

Conductor

Copper, single-wire, of the 1 class according to GOST 22483, with the cross-section from 0.75 to 6 mm2.

Thermal barrier

Mica tape winding.

Insulation

Low toxic PVC-compound of low fire hazard.

Core arrangement

КThe number of conductors from 4 to 127. The insulated conductors are twisted; there is a marker pair in each layer. It is allowed digital and color coded marking of the conductors.

Separating layer

Low toxic PVC-compound of low fire hazard.

Screen

For cables of types KVVGЕng(A)- FRLSLTx is made as a helically overlapping superimposed with copper tapes.

Cable armoring

For cables of types KVBbShvng(A)- FRLSLTx is laid helically with two steel, galvanized tapes.

Cable sheath or jacket

Low toxic PVC-compound of low fire hazard.