450/750V single core XLPE insulated
LSZH sheathed cable to BS7211 is designed
for fixed wiring and low voltage
building installations.
It is suitable for commercial buildings,
public facilities, hospitals, airports,
schools, data centres and transport systems.
The cable is used where low smoke
zero halogen performance is required
to reduce smoke emission and corrosive gas
release in the event of fire.
The XLPE insulation provides reliable
electrical performance and thermal stability.
The LSZH outer sheath provides low smoke
and halogen free performance for safer
indoor installation environments.
This cable is commonly used for lighting,
power, panel wiring and general fixed wiring
circuits in buildings.
As an unarmoured single core cable,
it should be installed where mechanical
protection is provided by conduit,
trunking, cable tray or other protected
wiring systems.
The cable should be selected according to
voltage rating, conductor size,
insulation colour, sheath colour,
installation method, fire performance
requirement and project specification.
Basic design to BS 7211:2012
| 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 |
450/750V
Conductor : Annealed copper conductor, solid or stranded according to BS EN 60228 class 1 or class 2.
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.
Outer Sheath : Extruded LSZH type LTS 4 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.
Insulation Colour : Brown or blue.
Sheath Colour : White; other colours can be offered upon request.
Maximum temperature range during operation : 90°C
Maximum short circuit temperature (5 Seconds) : 250°C
Minimum bending radius :
OD<8mm : 4 × Overall Diameter
8mm≤OD≤12mm : 5 × Overall Diameter
OD>12mm : 6 × Overall Diameter
| Conductor | FLP450-RZ1-U/R | |||||
|---|---|---|---|---|---|---|
| No. of Cores × Cross-sectional Area | Conductor Class | Nominal Insulation Thickness | Nominal Sheath Thickness | Min. Overall Diameter | Max. Overall Diameter | Approx. Weight |
| No.×mm² | mm | mm | mm | mm | kg/km | |
| 1×1.0 | 1 | 0.7 | 0.8 | 3.9 | 4.8 | 26 |
| 1×1.5 | 1 | 0.7 | 0.8 | 4.2 | 5.0 | 34 |
| 1×2.5 | 1 | 0.7 | 0.8 | 4.6 | 5.5 | 46 |
| 1×4 | 1 | 0.7 | 0.8 | 5.2 | 6.3 | 65 |
| 1×6 | 1 | 0.7 | 0.8 | 5.7 | 6.8 | 90 |
| 1×1.0 | 2 | 0.7 | 0.8 | 4.0 | 4.9 | 31 |
| 1×1.5 | 2 | 0.7 | 0.8 | 4.3 | 5.2 | 39 |
| 1×2.5 | 2 | 0.7 | 0.8 | 4.7 | 5.6 | 51 |
| 1×4 | 2 | 0.7 | 0.9 | 5.3 | 6.4 | 72 |
| 1×6 | 2 | 0.7 | 0.9 | 5.9 | 7.1 | 99 |
| 1×10 | 2 | 0.7 | 0.9 | 6.7 | 8.1 | 141 |
| 1×16 | 2 | 0.7 | 0.9 | 7.6 | 9.2 | 205 |
| 1×25 | 2 | 0.9 | 1.0 | 9.4 | 11.4 | 318 |
| 1×35 | 2 | 0.9 | 1.1 | 10.6 | 12.8 | 482 |
Conductor operating temperature : 90°C
Ambient temperature : 30°C
| 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) | Ref. Method F (in free air or on a perforated cable tray, horizontal or vertical etc) Touching | Ref. Method G (in free air) Spaced by one cable diameter | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2 cables, single-phase a.c. or d.c. flat | 3 cables, three-phase a.c. flat | 3 cables, three-phase a.c. trefoil | 2 cables, single-phase a.c. or d.c. or 3 cables three-phase a.c. flat | ||
| Horizontal | Vertical | ||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| mm² | A | A | A | A | A | A | A | A | A | A | A |
| 1.0 | 14 | 13 | 17 | 15 | 19 | 17.5 | - | - | - | - | - |
| 1.5 | 19 | 17 | 23 | 20 | 25 | 23 | - | - | - | - | - |
| 2.5 | 26 | 23 | 31 | 28 | 34 | 31 | - | - | - | - | - |
| 4 | 35 | 31 | 42 | 37 | 46 | 41 | - | - | - | - | - |
| 6 | 45 | 40 | 54 | 48 | 59 | 54 | - | - | - | - | - |
| 10 | 61 | 54 | 75 | 66 | 81 | 74 | - | - | - | - | - |
| 16 | 81 | 73 | 100 | 88 | 109 | 99 | - | - | - | - | - |
| 25 | 106 | 95 | 133 | 117 | 143 | 130 | 161 | 141 | 135 | 182 | 161 |
| 35 | 131 | 117 | 164 | 144 | 176 | 161 | 200 | 176 | 169 | 226 | 201 |
| 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, Trefoil | Cables touching, flat | Cables spaced*, flat | ||||||||||||||||||||
| Cables touching | Cables spaced* | |||||||||||||||||||||
| 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 | ||||||||||||||
| 2.5 | 19 | 19 | 19 | 19 | 16 | 16 | 16 | 16 | ||||||||||||||
| 4 | 12 | 12 | 12 | 12 | 10 | 10 | 10 | 10 | ||||||||||||||
| 6 | 7.9 | 7.9 | 7.9 | 7.9 | 6.8 | 6.8 | 6.8 | 6.8 | ||||||||||||||
| 10 | 4.7 | 4.7 | 4.7 | 4.7 | 4.0 | 4.0 | 4.0 | 4.0 | ||||||||||||||
| 16 | 2.9 | 2.9 | 2.9 | 2.9 | 2.5 | 2.5 | 2.5 | 2.5 | ||||||||||||||
| r | x | z | r | x | z | r | x | z | r | x | z | r | x | z | r | x | z | r | x | z | ||
| 25 | 1.85 | 1.85 | 0.31 | 1.90 | 1.85 | 0.190 | 1.85 | 1.85 | 0.28 | 1.85 | 1.60 | 0.27 | 1.65 | 1.60 | 0.165 | 1.60 | 1.60 | 0.190 | 1.60 | 1.60 | 0.27 | 1.65 |
| 35 | 1.35 | 1.35 | 0.29 | 1.35 | 1.35 | 0.180 | 1.35 | 1.35 | 0.27 | 1.35 | 1.15 | 0.25 | 1.15 | 1.15 | 0.155 | 1.15 | 1.15 | 0.180 | 1.15 | 1.15 | 0.26 | 1.20 |
Note: *Spacings larger than one cable diameter will result in a large voltage drop.
r = conductor resistance at operating temperature
x = reactance
z = impedance
KEY FEATURES
- Designed according to BS7211 requirements
- 450/750V voltage rating
- Single core cable construction
- XLPE insulated conductor
- LSZH / LSOH outer sheath
- Low smoke zero halogen performance
- Suitable for fixed wiring installation
- Suitable for building wire applications
- Suitable for indoor protected cable routes
- Suitable for public buildings and commercial buildings
SELECTION NOTES
Before quotation, please confirm:
- Voltage rating
- Conductor size
- Cable length
- Insulation colour
- Sheath colour
- Installation method
- Fire performance requirement
- Required standard or project specification
- Packing requirement
- Destination port or delivery address
BS7211 450/750V single core XLPE insulated
LSZH sheathed cable is commonly selected
for indoor fixed wiring where low smoke
zero halogen performance is required.
It is suitable for buildings and public
facilities where smoke emission and
corrosive gas release need to be reduced
in the event of fire.
For installations requiring mechanical
protection, the cable should be installed
in conduit, trunking, cable tray
or other protected routes.
RELATED CABLE TYPES
- BS7211 cable
- 6491B cable
- 2491B cable
- 6181B cable
- 6241B cable
- 6242B cable
- 6243B cable
- BS6724 LSZH armoured cable
- LSZH building wire
- Fixed wiring cable
FAQ
What is this BS7211 single core cable used for?
This cable is used for fixed wiring
and low voltage building installations.
It is suitable for commercial buildings,
public facilities, hospitals, airports,
schools, data centres and transport systems.
What is the voltage rating of this cable?
This page is for 450/750V
single core XLPE insulated LSZH sheathed
cable to BS7211.
Is this cable LSZH?
Yes. This cable uses an LSZH / LSOH
outer sheath to reduce smoke emission
and corrosive gas release in the event of fire.
Is this cable armoured?
No. This is an unarmoured single core
fixed wiring cable.
Where mechanical protection is required,
it should be installed in conduit,
trunking, cable tray or other protected routes.
Is BS7211 the same as BS6724?
No. BS7211 is generally used for
unarmoured LSZH building wiring cables.
BS6724 is normally used for LSZH
armoured power cables.
Can this cable be used outdoors?
It is mainly selected for indoor
and protected fixed wiring installations.
Outdoor use should be confirmed
according to project specification
and installation conditions.
What information is required for quotation?
Please confirm voltage rating,
conductor size, cable length,
insulation colour, sheath colour,
installation method and required standard.
Destination port or delivery address
is also required.
Can BURYCABLE supply BS7211
single core cable?
Yes. BURYCABLE can supply BS7211
single core XLPE insulated LSZH sheathed
cables according to project voltage,
conductor size, length, colour
and packing requirements.
