BURYCABLE FirePro 300/500V single core
Mica XLPE LSZH cable is designed for fixed
installations where circuit integrity
under fire conditions is specified.
Typical project environments include
hospitals, hotels, high-rise buildings,
airports, metro facilities and power stations.
The construction comprises one insulated
copper conductor and a separate bare copper
circuit protective conductor (CPC)
within an LSZH outer sheath.
A mica glass tape fire barrier is applied
beneath the XLPE insulation to help preserve
electrical insulation during fire exposure.
The LSZH sheath helps limit smoke emission
and halogen acid gas release during burning.
The basic cable design is adapted from
BS 7211:2012. The product data sheet lists
BS 6387 and IEC 60331-21 as circuit
integrity test references.
The applicable test method, classification
and duration must be confirmed against
the test report for the supplied cable.
This is an unarmoured cable.
Provide additional mechanical protection
where required by the installation conditions.
Cable supports, joints and terminations
must be suitable for the specified
fire-resistant wiring installation.
Select the cable according to circuit duty,
voltage rating, main conductor size,
CPC size, installation conditions
and the project fire performance requirements.
Basic design adapted from BS 7211:2012
| 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 |
FIRE PERFORMANCE NOTE
BS 6387 and IEC 60331-21 are the circuit
integrity references listed in the catalogue.
IEC 60331-21 is a legacy reference.
The applicable standard edition,
test classification and fire duration
must be confirmed against project requirements
and the relevant cable test report.
Listing a test standard does not by itself
confirm certification or a specific fire rating.
300/500V
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.
Insulation Colour : Brown or blue.
Sheath Colou r: 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 : 4 x Overall Diameter
| Conductor | FRP300-mRZ1-U | |||||||
|---|---|---|---|---|---|---|---|---|
| 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 |
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) | |||
|---|---|---|---|---|---|---|
| 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 |
| 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 | 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.
KEY FEATURES
- 300/500V rated voltage
- Single insulated core with a bare copper CPC
- Solid annealed copper main conductor
- Mica glass tape fire barrier
- XLPE insulation and LSZH outer sheath
- Unarmoured construction for fixed installation
- Basic design adapted from BS 7211
- Fire test requirements confirmed for each project
SELECTION NOTES
For quotation, please provide the main
conductor size, CPC size, total cable length
and required insulation and sheath colours.
Specify the required circuit integrity
test standard, classification and duration.
Also confirm the installation environment,
cable routing, packing requirements
and delivery destination.
Do not assume that an ordinary LSZH cable
and a fire-resistant cable are interchangeable.
Outdoor exposure, wet locations and
underground installation require a separate
assessment of the cable construction
and installation protection.
Any additional UV, oil or chemical resistance
must be specified and confirmed before supply.
RELATED CABLE TYPES
300/500V Mica XLPE LSZH 2-3 Core Cable
450/750V Mica XLPE LSZH Single Core Cable
450/750V Mica XLPE LSZH Multicore Cable
BS7211 LSZH Fixed Wiring Cable
FAQ
Is this a single core cable or a two core cable?
This product has one insulated main conductor
and a separate bare copper CPC.
The CPC is a protective conductor.
It is not a second insulated circuit core.
What is the function of the mica tape?
The mica glass tape acts as a fire barrier
beneath the XLPE insulation.
It helps preserve electrical insulation
during fire exposure. The actual circuit
integrity performance must be supported
by testing of the cable construction.
What standards are referenced for this cable?
The basic design is adapted from BS 7211:2012.
The catalogue lists BS 6387 and IEC 60331-21
as circuit integrity test references.
IEC 60331-21 is a legacy reference.
Confirm the applicable standard edition
and required performance before ordering.
Does this cable automatically have a CWZ rating?
No specific CWZ rating or fire duration
should be assumed from the product name
or the presence of mica tape alone.
The required classification must be verified
against the relevant cable test report.
Is LSZH performance the same as fire resistance?
No. LSZH describes smoke and halogen-related
emission characteristics.
Fire resistance concerns the ability to
maintain circuit integrity under defined
fire test conditions.
These are separate performance requirements.
Is this cable armoured?
No. This is an unarmoured sheathed cable
with a bare copper CPC.
Additional mechanical protection should be
provided where required by the installation.
Can this cable be used for any emergency circuit?
Selection depends on the specific circuit,
installation design and required fire tests.
The cable, supports, joints and terminations
must be assessed for the intended duty.
Do not assume universal approval for
all emergency or life-safety systems.
How do I request a quotation?
Send the voltage rating, main conductor size,
CPC size, cable length and required fire rating.
Include the installation environment,
colour requirements, packing details
and delivery destination.
