FR + LS
Fire-resistant power cable with copper conductors and a mica fire barrier
VVGng(A)-FRLS — fire-resistant power cable with copper conductors, a mica-containing fire barrier, and insulation and sheath of low-fire-hazard PVC compound. Maintains circuit integrity under fire for at least 90 minutes at a temperature of 750°C per GOST R 53316. Used in fire protection systems, emergency lighting, firefighting lifts and at facilities with large numbers of people. Designation breakdown: FR — Fire Resistant, ng(A) — does not propagate flame, category A, LS — Low Smoke (low smoke emission).
Sizes with actual technical specifications. The geometry is similar to VVG; fire resistance is provided by the mica fire barrier and the PVC formulation.
| Type / size | Cores | Cross-section, mm² | IEC equivalent | Outer Ø, mm | Weight, kg/km | Current (in air), A |
|---|---|---|---|---|---|---|
| VVGng(A)-FRLS 3×1.5 | 3 | 1.5 | — | 11 | 147 | 18.5 |
| VVGng(A)-FRLS 3×2.5 | 3 | 2.5 | — | 12 | 188 | 25 |
| VVGng(A)-FRLS 3×4 | 3 | 4 | — | 14 | 263 | 34 |
| VVGng(A)-FRLS 3×6 | 3 | 6 | — | 15.2 | 335 | 43 |
| VVGng(A)-FRLS 3×10 | 3 | 10 | — | 17 | 469 | 60 |
| VVGng(A)-FRLS 3×16 | 3 | 16 | — | 19.2 | 661 | 80 |
| VVGng(A)-FRLS 3×25 | 3 | 25 | — | 22.7 | 972 | 101 |
| VVGng(A)-FRLS 3×35 | 3 | 35 | — | 25.1 | 1278 | 126 |
| VVGng(A)-FRLS 3×50 | 3 | 50 | — | 26.6 | 1742 | 153 |
| VVGng(A)-FRLS 3×70 | 3 | 70 | — | 29.6 | 2332 | 196 |
| VVGng(A)-FRLS 3×95 | 3 | 95 | — | 34.1 | 3138 | 238 |
| VVGng(A)-FRLS 3×120 | 3 | 120 | — | 36.9 | 3853 | 276 |
| VVGng(A)-FRLS 3×150 | 3 | 150 | — | 40.8 | 4768 | 319 |
| VVGng(A)-FRLS 3×185 | 3 | 185 | — | 45.3 | 5870 | 364 |
| VVGng(A)-FRLS 3×240 | 3 | 240 | — | 50.5 | 7506 | 430 |
| VVGng(A)-FRLS 4×2.5 | 4 | 2.5 | — | 12.9 | 229 | 25 |
| VVGng(A)-FRLS 4×4 | 4 | 4 | — | 15.2 | 326 | 34 |
| VVGng(A)-FRLS 4×6 | 4 | 6 | — | 16.5 | 419 | 43 |
| VVGng(A)-FRLS 4×10 | 4 | 10 | — | 18.6 | 593 | 60 |
| VVGng(A)-FRLS 4×16 | 4 | 16 | — | 21 | 844 | 80 |
| VVGng(A)-FRLS 4×25 | 4 | 25 | — | 25 | 1251 | 101 |
| VVGng(A)-FRLS 4×35 | 4 | 35 | — | 27.6 | 1653 | 126 |
| VVGng(A)-FRLS 4×50 | 4 | 50 | — | 29.3 | 2268 | 153 |
| VVGng(A)-FRLS 4×70 | 4 | 70 | — | 33.2 | 3078 | 196 |
| VVGng(A)-FRLS 4×95 | 4 | 95 | — | 37.7 | 4104 | 238 |
| VVGng(A)-FRLS 4×120 | 4 | 120 | — | 41.3 | 5088 | 276 |
| VVGng(A)-FRLS 4×150 | 4 | 150 | — | 45.7 | 6301 | 319 |
VVGng(A)-FRLS — fire-resistant power cable for critical loads that must keep operating even during a fire. These include automatic fire suppression and smoke extraction systems, emergency lighting, evacuation lifts and sprinkler system pumps.
How it works: around each conductor is wound a tape containing mica — a mineral with a melting point above 1300°C. When conventional PVC insulation breaks down in fire, the mica layer remains intact and continues to insulate the conductor. Per GOST R 53316, the cable must maintain circuit integrity at 750°C for at least 90 minutes — enough time to evacuate people and extinguish the fire.
In addition, the insulation and sheath are made of low-fire-hazard PVC (ng, category A) with low smoke and gas emission (LS) — this reduces smoke toxicity and improves visibility on escape routes.
Conductors
Stranded copper, round or sector-shaped, 1, 2, 3, 4 or 5 cores.
Fire barrier
Mica-containing tape applied over each conductor. Maintains the integrity of the insulation at a fire temperature of ≥ 750°C for at least 90 minutes.
Insulation
Low-fire-hazard PVC compound, with colour coding of the cores.
Stranding
The insulated cores are stranded into a core.
Sheath
Low-fire-hazard PVC compound with low smoke and gas emission (LS – Low Smoke). Orange – the standard colour for fire-resistant cables.
Cross-section of VVGng(A)-FRLS – orange low-fire-hazard sheath, golden mica tape around each conductor
Full product range – see the TCG datasheet
Specify the cross-section and quantity and we will prepare a proposal within 1 business day.
Our HR specialist will contact you within two business days
Send us a request and we will prepare a commercial proposal within 1 business day
Describe your task and we will calculate and send a proposal within 1 business day
.svg){kind=logo}
