Fire Resisting Cable

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

The cables 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

FFX300 05mRZ1-U

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 Colou r: 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

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)

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 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.