CONTROL, FIRE RESISTANT CABLES, FLAME RETARDANT AT GROUP INSTALLATION WITH LOW SMOKE AND GAS EMISSION SPECIFICATION 16.K71-337-2004
- KVVGng(A)-FRLS,
- KVVGEng(A)-FRLS
CONTROL, FIRE RESISNANT CABLES, FLAME RETARDANT AT GROUP INSTALLATION WITH LOW SMOKE AND GAS EMISSION (modification “flame retardant – “Fire-Resistant Low Smoke”)
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 660 V of frequency. up to 100 Hz or direct voltage up to 1000 V, for group installation with taking into account the volume of combustible load of the cables in the fire protection systems and other systems that must remain operational in case of fire within 180 minutes.
The screened cables are used when it is necessary to protect the electrical circuits from the influence of external electric fields.
The cables are manufactured for general industrial use and use in nuclear power stations (NPP) outside the hermetical unit in the system as class 2 according to the classification НП- 001 20 15.
The class of fire hazard of the cables according to GOST 31565 is П1 б.1.2.2.2.
TECHNICAL DATA
| Nominal voltage, kV | up to 0,66 |
| Ambient temperature during cable operation, °С | from - 50 to + 50 |
| Minimum bending radius of the cables, diameters of the cable | 6 |
| The ambient temperature for installation of the cables (without preheat), °C not below | -15 |
| Fire resistant of the cables, min, not less | 180 |
| Reduction of light permeability in the test chamber | not more than 50% |
| Warranty period | 3 years |
STRUCTURE
Conductor
Copper, single-wire, of the 1 class according to GOST 22483, with the cross-section from 0,75 up to 6 mm2.
Thermal barrier
The lapping with two mica tapes.
Core arrangement
Number of conductors from 4 to 61. The insulated conductors are twisted in the cable core, the conductors are color-coded, which provide the identification of each core during installation. Color-coded is solid or in the form of longitudinal strips of a width not less than 1mm.
Inner sheath
For cables of types KVVGЕng (A)-FRLS –PVCcompound of low fire hazard.
Screen
For cables of types KVVGЕng (A)-FRLS is made in the form of taping with copper wire or copper foil.
Over sheath
PVC-compound of low fire hazard.
