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 |
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.
