This fire-resistant cable is strictly designed in accordance with BS 7211:2012 standard. It is a high-performance power transmission cable integrating circuit integrity, low smoke zero halogen (LSZH), flame retardancy and fire resistance, and high temperature resistance into one. Adopting annealed copper conductors, mica glass tape fire barrier, XLPE insulation, and LSZH environmentally friendly outer sheath, combined with flexible customization features, it is specifically designed for scenarios with stringent requirements for fire safety, electrical stability, and environmental adaptability, ensuring that critical circuits continue to operate reliably under environments such as fire, high temperature, and complex wiring.
Basic design adapted from BS 7211:2012
| Circuit Integrity | IEC 60331-21; BS 6387 |
| Flame Retardance (Single vertical wire or cable test) | IEC 60332-1-2; EN 60332-1-2 |
| Reduced Fire Propagation (Vertically-mounted bundled wires & cables test) | IEC 60332-3-24; EN 60332-3-24 |
| Halogen free | IEC 60754-1; EN 50267-2-1 |
| No Corrosive Gas Emission | IEC60754-2; EN 50267-2-2 |
| Minimum Smoke Emission | IEC 61034-2; EN 61034-2 |
300/500V
Conductor : Annealed copper conductor, solid according to BS EN 60228 class 1.
Fire Barrier : Mica glass tape.
Insulation : XLPE type GP 8 according to BS 7655-1.3. Crosslinked polyolefin material type EI 5 according to EN 50363-5 can be offered as option.
CPC (Circuit Protective Conductor) : Uninsulated copper conductor.
Outer Sheath : Extruded LSZH type LTS 2 according to BS 7655-6.1.
Outer Sheath Option : UV resistance, hydrocarbon resistance, oil resistance, anti-rodent and anti-termite properties can be offered as option.
Insulation Colour : Brown or blue.
Sheath Colou r: White; other colours can be offered upon request.
Maximum temperature range during operation : 90°C
Maximum short circuit temperature (5 Seconds) : 250°C
Minimum bending radius : 4 x Overall Diameter
| Conductor | FRP300-mRZ1-U | |||||||
|---|---|---|---|---|---|---|---|---|
| No. of Cores × Cross-sectional Area | Conductor Class | Nominal Insulation Thickness | Crosssectional Area of CPC | Class of CPC | Nominal Sheath Thickness | Min. Overall Dimensions | Max. Overall Dimensions | Approx. Weight |
| No.×mm² | mm | mm² | mm | mm | mm | kg/km | ||
| 1×1.0 | 1 | 0.70 | 1.0 | 1 | 0.9 | 5.1x6.2 | 6.0x7.3 | 66 |
| 1×1.5 | 1 | 0.70 | 1.0 | 1 | 0.9 | 5.4x6.4 | 6.3x7.6 | 74 |
Conductor operating temperature : 90°C
Ambient temperature : 30°C
| Conductor cross-sectional area | Ref. Method A (enclosed in conduit in thermally insulating wall etc.) | Ref. Method B (enclosed in conduit on a wall or in trunking etc.) | Ref. Method C (clipped direct) | |||
|---|---|---|---|---|---|---|
| 2 cables, single-phase a.c. or d.c. | 3 or 4 cables, three-phase a.c. | 2 cables, single-phase a.c. or d.c | 3 or 4 cables, three-phase a.c. | 2 cables, single-phase a.c. or d.c. flat and touching | 3 or 4 cables, three-phase a.c. flat and touching or trefoil | |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| mm² | A | A | A | A | A | A |
| 1.0 | 14 | 13 | 17 | 15 | 19 | 17.5 |
| 1.5 | 19 | 17 | 23 | 20 | 25 | 23 |
| Conductor cross-sectional area | 2 cables d.c. | 2 cables, single-phase a.c. | 3 or 4 cables, three-phase a.c. | |||||
|---|---|---|---|---|---|---|---|---|
| Ref. Methods A&B (enclosed in conduit or trunking) | Ref. Methods C, F&G (clipped direct, on trays or in free air) | Ref. Methods A&B (enclosed in conduit or trunking) | Ref. Methods C, F&G (clipped direct, on trays or in free air) | |||||
| Cables touching | Cables spaced* | Cables touching, Trefoil | Cables touching, flat | Cables spaced*, flat | ||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| mm² | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m |
| 1.0 | 46 | 46 | 46 | 46 | 40 | 40 | 40 | 40 |
| 1.5 | 31 | 31 | 31 | 31 | 27 | 27 | 27 | 27 |
Note: *Spacings larger than one cable diameter will result in a large voltage drop.
