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Fire Resisting Cable |
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Fire Resisting Cables
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 |
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 |
VOLTAGE RATING
300/500V
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 Colou r: 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 |
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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) according to BS 7671:2008 table 4E1A
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) |
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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. |
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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) |
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Cables touching |
Cables spaced* |
Cables touching, Trefoil |
Cables touching, flat |
Cables spaced*, flat |
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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.