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  HomeProuductsFIRETOX LSZH Flame Retardant Power & Control Cables

600/1000V XLPE Insulated, LSZH Sheathed Power Cables to BS 8573(2-5 Cores)

FTX400 1RZ1-R (CU/XLPE/LSZH 600/1000V Class 2)

Applications

BS 8573 600/1000V 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 to BS 8573:2012

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

600/1000V

Construction

600/1000V XLPE Insulated, LSZH Sheathed, Power Cables Power Cables to BS 8573(2-5 Cores)
Conductor Annealed copper conductor, stranded according to BS EN 60228 class 2.
Insulation Thermosetting insulation XLPE Type GP8 according to BS 7655-1.3. HEPR Type GP6 according to BS 7655-1.2 or crosslinked polyolefin material type EI 5 according to BS EN 50363-5 can be offered as option.
Inner Covering Option: The optional inner covering, where used, shall consist of an extruded layer of synthetic polymeric material. It shall surround the single core and the laid-up two, three, four or five cores, giving the assembly a practically circular shape.
Outer Sheath: Extruded layer of polymeric material 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 2-core: Brown and blue. 3-core: Brown, black and grey. Alternatively, green-and-yellow, blue, brown. 4-core: Blue, brown black and grey. Alternatively, green-and-yellow, brown, black, grey. 5-core: Green and yellow, blue, brown black, grey.
Sheath Colour Black; 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: circular copper conductors OD≤25mm : 4 × Overall Diameter circular copper conductors OD﹥25mm: 6 × Overall Diameter shaped copper conductors: 8 × Overall Diameter

CONSTRUCTION PARAMETERS

Conductor FTX400 1RZ1-R
No. of Cores × Cross-sectional Area Conductor Class Nominal Insulation Thickness Nominal Inner Covering Thickness Nominal Sheath Thickness Approx. Overall Diameter Approx. Weight
No.×mm2 　 mm mm mm mm kg/km
2×1.5a 2 0.7 0.4 1.8 9.6 117
2×2.5a 2 0.7 0.4 1.8 10.4 146
2×4a 2 0.7 0.4 1.8 11.5 190
2×6a 2 0.7 0.4 1.8 12.6 244
2×10a 2 0.7 0.6 1.8 14.5 349
2×16a 2 0.7 0.6 1.8 16.6 495
2×25a 2 0.9 0.8 1.8 20.0 735
2×35a 2 0.9 0.8 1.8 22.3 963
2×50a 2 1.0 1.0 1.8 25.4 1261
2×70a 2 1.1 1.0 1.8 29.4 1751
2×95a 2 1.1 1.2 1.9 33.4 2359
2×120a 2 1.2 1.2 2.0 37.2 2950
2×25b 2 0.9 0.6 1.8 16.1 692
2×35b 2 0.9 0.6 1.8 17.9 913
2×50b 2 1.0 0.8 1.8 20.6 1205
2×70b 2 1.1 0.8 1.8 23.5 1680
2×95b 2 1.1 1.0 1.9 26.2 2268
2×120b 2 1.2 1.0 2.0 29.0 2838
3×1.5a 2 0.7 0.4 1.8 10.0 143
3×2.5a 2 0.7 0.4 1.8 10.9 183
3×4a 2 0.7 0.4 1.8 12.1 244
3×6a 2 0.7 0.4 1.8 13.3 321
3×10a 2 0.7 0.6 1.8 15.3 472
3×16a 2 0.7 0.6 1.8 17.6 681
3×25a 2 0.9 0.8 1.8 21.3 1027
3×35a 2 0.9 0.8 1.8 23.8 1360
3×50a 2 1.0 1.0 1.8 27.1 1795
3×70a 2 1.1 1.2 1.9 31.6 2530
3×95a 2 1.1 1.2 2.0 36.1 3441
3×120a 2 1.2 1.2 2.1 40.2 4307
3×25b 2 0.9 0.6 1.8 18.5 993
3×35b 2 0.9 0.8 1.8 21.1 1327
3×50b 2 1.0 0.8 1.8 23.7 1751
3×70b 2 1.1 1.0 1.9 27.6 2474
3×95b 2 1.1 1.2 2.0 31.0 3364
3×120b 2 1.2 1.2 2.1 33.8 4205
4×1.5a 2 0.7 0.4 1.8 10.8 172
4×2.5a 2 0.7 0.4 1.8 11.8 223
4×4a 2 0.7 0.4 1.8 13.1 303
4×6a 2 0.7 0.6 1.8 14.5 402
4×10a 2 0.7 0.6 1.8 16.8 599
4×16a 2 0.7 0.6 1.8 19.3 873
4×25a 2 0.9 0.8 1.8 23.4 1328
4×35a 2 0.9 1.0 1.8 26.2 1767
4×50a 2 1.0 1.0 1.8 29.9 2339
4×70a 2 1.1 1.2 2.0 35.1 3326
4×95a 2 1.1 1.2 2.1 39.9 4505
4×120a 2 1.2 1.2 2.3 44.7 5669
4×25b 2 0.9 0.8 1.8 18.8 1293
4×35b 2 0.9 0.8 1.8 21.1 1727
4×50b 2 1.0 1.0 1.8 24.2 2296
4×70b 2 1.1 1.2 2.0 27.6 3258
4×95b 2 1.1 1.2 2.1 30.7 4409
4×120b 2 1.2 1.2 2.3 34.0 5549
5×1.5a 2 0.7 0.4 1.8 10.8 172
5×2.5a 2 0.7 0.4 1.8 11.8 223
5×4a 2 0.7 0.6 1.8 14.2 367
5×6a 2 0.7 0.6 1.8 15.8 492
5×10b 2 0.7 0.6 1.8 17.5 754
5×16b 2 0.7 0.8 1.8 21.6 1141
5×25b 2 0.9 1.0 1.8 24.6 1678
5×35b 2 0.9 1.0 1.8 28.2 2273
5×50b 2 1.0 1.2 1.9 31.9 3000
5×70b 2 1.1 1.2 2.1 35.7 4187
5×95b 2 1.1 1.4 2.2 41.0 5748
5×120b 2 1.2 1.4 2.4 44.2 7142
a Circular or compacted circular stranded conductors (class 2).
b Shaped stranded conductor (class 2).
Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information.

Electrical Properties

Conductor Operating Temperature 90°C
Ambient Temperature 30°C

Current-Carrying Capacities (Amp) according to BS 7671:2008 table 4E2A

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 E (in free air or on a perforated cable tray tec. horizontal or vertical)
1 two-core cable*, single-phase a.c. or d.c. 1 three- or four-core cable*, three- phase a.c. 1 two-core cable*, single- phase a.c. or d.c. 1 three- or four-core cable*, three-phase a.c. 1 two-core cable*, single-phase a.c. or d.c. 1 three- or four-core cable*, three- phase a.c. 1 two-core cable*, single- phase a.c. or d.c. 1 three- or four-core cable*, three- phase a.c.
1 2 3 4 5 6 7 8 9
mm2 A A A A A A A A
1.5 18.5 16.5 22 19.5 24 22 26 23
2.5 25 22 30 26 33 30 36 32
4 33 30 40 35 45 40 49 42
6 42 38 51 44 58 52 63 54
10 57 51 69 60 80 71 86 75
16 76 68 91 80 107 96 115 100
25 99 89 119 105 138 119 149 127
35 121 109 146 128 171 147 185 158
50 145 130 175 154 209 179 225 192
70 183 164 221 194 269 229 289 246
95 220 197 265 233 328 278 352 298
120 253 227 305 268 382 322 410 346
Note: With or without a protective conductor.

Voltage Drop (Per Amp Per Meter) according to BS 7671:2008 table 4E2B

Conductor cross- sectional area Two-core cable, d.c. Two-core cable, single-phase a.c. Three- or four-core cable, three-phase a.c.
1 2 3 4
mm2 mV/A/m mV/A/m mV/A/m
1.5 31 31 27
2.5 19 19 16
4 12 12 10
6 7.9 7.9 6.8
10 4.7 4.7 4.0
16 2.9 2.9 2.5
　 　 r x z r x z
25 1.85 1.85 0.160 1.90 1.60 0.140 1.65
35 1.35 1.35 0.155 1.35 1.15 0.135 1.15
50 0.98 0.99 0.155 1.00 0.86 0.135 0.87
70 0.67 0.67 0.150 0.69 0.59 0.130 0.60
95 0.49 0.50 0.150 0.52 0.43 0.130 0.45
120 0.39 0.40 0.145 0.42 0.34 0.130 0.37

Note: *Spacings larger than one cable diameter will result in a large voltage drop.
r = conductor resistance at operating temperature
x = reactance
z = impedance