300/500V XLPE Insulated, LSZH Sheathed Power Cables to BS 7211(Single Core)
FTX300 05RZ1-U (CU/XLPE/LSZH 300/500V Class 1)
BS Code: 6241B
Applications
BS 7211 300/500V XLPE Insulated, LSZH Sheathed Power Cables are mainly used in power stations, mass transit underground passenger systems, airports,
petrochemical plants, hotels, hospitals and high-rise buildings.
Standard
Basic design adapted to BS 7211:2012
FIRE PERFORMANCE
| 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 |
IEC 60754-2; EN 50267-2-2 |
| Minimum Smoke Emission |
IEC 61034-2; EN 61034-2 |
Voltage Rating
300/500V
Construction
| Conductor |
Annealed copper conductor, solid according to BS EN 60228 class 1. |
| Insulation |
XLPE type GP8 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 |
FTX300 05RZ1-U |
| No. of Cores × Cross-sectional Area |
Conductor Class |
Nominal Insulation Thickness |
Cross- sectional Area of CPC |
Class of CPC |
Nominal Insulation 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 |
4.1x5.2 |
5.0x6.3 |
45 |
| 1×1.5 |
1 |
0.70 |
1.0 |
1 |
0.9 |
4.4x5.4 |
5.3x6.6 |
55 |
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.
Electrical Properties
| Conductor Operating Temperature |
90°C |
| Ambient Temperature |
30°C |
Current-Carrying Capacities (Amp) according to BS 7671:2008 table 4E1A
| Conductor crosssectional
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
king) |
Ref. Methods C, F&G
direct, on trays or |
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.
