CONTROL AND MONITORING CABLES, FLAME RETARDENT, WITH LOW SMOKE- AND GAS EMISSION SPECIFICATION 16.K71-310-2001
- KUGVVng(A)-LS,
- KUGVEVng(A)-LS,
- KUGVVEng(A)-LS
CONTROL AND MONITORING CABLES, FLAME RETARDANT AT GROUP INSTALLATION WITH LOW SMOKE- AND GAS EMISSION (modification – “flame retardant – Low Smoke”)
SCOPE AND PURPOSE
The cables are designed for fixed installation of control circuits on the nominal alternating voltage up to 380 V of frequency up to 50 Hz or direct voltage up to 500 V.
The cables are manufactured for general industrial use and nuclear power plants. The cables do not spread combustion at group installation. The cables are designed for use in cable structures and premises, including for objects which use nuclear power, in the systems of NPP of class 3 and 4 according to classification of НП-001–15.
The climate modification is Moderately Cold Climate, categories of location 1–5 according to GOST 15150–69.
The class of fire hazard of the cables according to GOST 31565 – П1 б 8.2.2.2.
TECHNICAL DATA
| Nominal voltage, not more than, V | 380 |
| Ambient temperature during cable operation, °С | from - 50 to + 70 |
| The ambient temperature for laying and installation of the cables (without preheat) is made, °C, not below | -15 |
| Minimum bending radius, diameters of cable | 6 |
| Durably allowable temperature of heating of conductors during operation, °C | 70 |
| Service life, years | 30 |
| Reduction of light permeability in the test chamber | not more than 50 % |
| Category of tests for non-spreading of combustion | À |
| Equivalent toxicity index, g/m3, more than | 40 |
CONSTRUCTION
Current-carrying conductor
Copper, multi-wire of circular form, of the 4 class according to GOST 22483, with the cross-sections from 0,35 and 0,50 mm2.
Insulation
PVC-compound of low fire hazard
Screen
For KUGVЕVng(A)-LS is made in the form of braiding with copper wires over the insulation of each conductor.
Core arrangement and twisting
Insulated conductors (screened and not screened) are twisted in a cable core in the form of concentric layers. There is a counting pair in each layer. Color and digital marking of insulation of conductors is allowed.
Winding
Lapping with the tapes of PET-E films over the twisted conductors.
Main screen
For cables of type KUGVVЕng(A)-LS is made of alum flex and a contact copper tinned wire.
Over sheath
PVC-compound of low fire hazard.
