450/750V Mica+XLPE Insulated, LSZH Sheathed Power Cables to BS 7211 (Single Core)

FFX300 07mRZ1-U/R (CU/MGT+XLPE/LSZH 450/750V Class 1/2)

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

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	IEC 60754-2; EN 50267-2-2
Minimum Smoke Emission	IEC 61034-2; EN 61034-2

VOLTAGE RATING

450/750V

CABLE CONSTRUCTION

Conductor: Annealed copper conductor, solid or stranded according to BS EN 60228 class 1 or class 2.
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.
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.

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
OD<8mm: 4 × Overall Diameter
8mm≤OD≤12mm: 5 × Overall Diameter
OD>12mm: 6 × Overall Diameter

CONSTRUCTION PARAMETERS

Conductor		FFX300 07mRZ1-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	4.9	5.8	30
1×1.5	1	0.7	0.8	5.2	6.0	38
1×2.5	1	0.7	0.8	5.6	6.5	51
1×4	1	0.7	0.8	6.2	7.3	70
1×6	1	0.7	0.8	6.7	7.8	95
1×1.0	2	0.7	0.8	5.0	5.9	35
1×1.5	2	0.7	0.8	5.3	6.2	43
1×2.5	2	0.7	0.8	5.7	6.6	56
1×4	2	0.7	0.9	6.3	7.4	77
1×6	2	0.7	0.9	6.9	8.1	104
1×10	2	0.7	0.9	7.7	9.1	147
1×16	2	0.7	0.9	8.6	10.2	211
1×25	2	0.9	1.0	10.4	12.4	325
1×35	2	0.9	1.1	11.6	13.8	489

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)		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

Voltage Drop (Per Amp Per Meter) according to BS 7671:2008 table 4E1B

Conductor crosssectional 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
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