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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
300/500V Mica+XLPE Insulated, LSZH Sheathed Power Cables to BS 7211 (Single Core) 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 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 |
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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.
Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information