Cable EPRCab Bvng(A)-LS
Design:
1. Current-carrying core - round copper multi-wire compacted core.
2. Screen along the core - extruded semiconductive layer.
3. Insulation - made of cross-linked ethylene propylene rubber.
4. Insulation screen - extruded semiconductive layer.
5. Combined screen - in the form of a layer applied by a winding of conductive paper or conductive polymer tape and a winding of copper wires, on top of which a PP tape is spirally applied.
6. Inner shell - made of PVC plastic with low fire hazard, flame retardant, with reduced smoke and gas emission.
7. Armor pad – made of PVC plastic with low fire hazard, flame retardant, with reduced smoke and gas emission.
8. Armor – made of two galvanized steel tapes.
9. The casing is made of PVC plastic with low fire hazard, does not spread combustion, with reduced smoke and gas emission.
Temperature modes:
• Ambient temperature during cable operation: from –50°С to +50°С.
• Relative air humidity (at temperatures up to +35°C) - 98%.
• Minimum cable laying temperature without preheating: –15°С.
• Maximum long-term permissible operating temperature of the conductors is +90°C.
• Permissible heating of the cable core in overload mode is no more than 130°C.
• The maximum permissible temperature of the cable core during a short circuit is no more than 250°C.
• The maximum permissible temperature of the copper cable screen during a short circuit is no more than 350°C.
• The maximum heating temperature of the core during a short circuit under the conditions of cable non-flammability is no more than 400°C.
• The duration of cable operation in overload mode is no more than 8 hours per day and no more than 1000 hours over the service life.
• Maximum allowable bending radius during installation:
- single-core cables - 15 Dн;
- three-core cables - 12 Dн.
Note:
The screen cross-section is selected depending on the short-circuit currents. It is possible to manufacture a cable with an increased screen cross-section.
• cross-section of at least 16 sq.mm. for cables with a core cross-section of 50 - 120 sq.mm.;
• cross-section of at least 25 sq.mm. for cables with a core cross-section of 150 - 300 sq.mm.;
• cross-section of at least 35 sq. mm. for cables with a core cross-section of 400 sq. mm. and more.
- The construction length of cables is specified when ordering.
- The service life of the cable is at least 30 years, the warranty period is 5 years.
