300/500V Mica+XLPE Insulated, LSZH Sheathed Power Cables to BS 7211 (Single Core)
FFX300 05mRZ1-U (CU/MGT+XLPE/LSZH 300/500V Class 1)
Application
The cables are mainly used in power stations, mass transit underground passenger systems, airports, petrochemical plants, hotels, hospitals and high-rise buildings.
Standards
Basic design adapted from BS 7211:2012
Fire Performance
| Circuit Integrity | IEC 60331-21; BS 6387 |
| Flame Retardance (Single vertical wire or cable test) | IEC 60332-1-2; EN 60332-1-2 |
| 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 |
Voltage Rating
300/500 V
Cable Construction
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.
Colour Code
Insulation Colour: Brown or blue.
Sheath Colour: White; other colours can be offered upon request.
Physical And Thermal Properties
Maximum temperature range during operation: 90°C
Maximum short circuit temperature (5 Seconds): 250°C
Minimum bending radius: 4 x Overall Diameter
Construction Parameters
| Conductor | FFX300 05mRZ1-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 |
Electrical Properties
Conductor Operating Temperature : 90°C
Ambient Temperature : 30°C
Current-Carrying Capacities (Amp)
| 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 |
Voltage Drop (Per Amp Per Meter) according to BS 7671:2008 table 4E1B
| 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.
