POWER CABLES, FLAME RETARDANT AT GROUP INSTALLATION WITH THE INSULATION AND SHEATH MADE OF HALOGEN-FREE POLYMER COMPOSITIONS SPECIFICATIONS 16.K71-341-2004
- PvPng(A)-HF,
- PvPeng(A)-HF
POWER CABLES, FLAME RETARDANT AT GROUP INSTALLATION AND NOT EMITTING COROSIVE ACTIVE GASEOUS PRODUCTS AT BURNING AND SMOULDERING (modification – «flame retardant – Halogen-Free»)
SCOPE AND PURPOSE
The cables are designed for transmission and distribution of electric power in electrical networks on the alternating voltage of 1kV and frequency 50 Hz and they are used for fixed cable installation inside and outside the hermetic zone of NPP. The cables are designed for operation in systems of nuclear power stations of classes 2 and 3 according to classification НП-001–2015.
The climate modification B, the category of location 5, according to GOST 15150–69
The class of fire hazard of the cables according to GOST 31565 П1 б.8.1.2.1.
TECHNICAL DATA
| Nominal voltage, kV | 1 | |
| Ambient temperature during cable operation, °С | from - 50 to + 60 | |
| Minimum bending radius, diameters of cable | for multi-core | 7,5 |
| for single-core | 10 | |
| The cables are laid at temperature (without preheat), °C, not below | –15 | |
STRUCTURE
Conductor
Copper, single-wire or multi-wire core, of circular or sector-shaped form, of the 1 or 2 class according to GOST 22483.
Insulation
XLPE (color coded conductor).
Core arrangement
Insulated conductors of multi-wire cables are twisted in a cable core.
Inner sheath
It’s made with the filling of exterior gaps between the conductors of halogen-free polymer composition.
Lapping
For cables with the conductors of cross-section 50 mm2 and more is made of one fiber glass tape.
Screen
For cables of types PvPEng(A)-HF the screen is made in form of lapping with copper tapes or by agreement with the customer with copper wires and a spiral taping with a copper tape.
Cable sheath
It’s made of halogen-free polymer composition.
