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  HomeProuductsFIRETOX LSZH Flame Retardant Power & Control Cables

0.6/1kV XLPE Insulated, LSZH Sheathed Armoured Power Cables to BS 6724(2-5 Cores)

FTX400 1RZ1MZ1-R (CU/XLPE/LSZH/SWA/LSZH 600/1000V Class 2)

Applications

BS 6724 600/1000V XLPE Insulated, LSZH Sheathed Power Cables aremainly used in power stations, mass transit underground passenger systems, airports, petrochemical plants, hotels, hospitals and high-rise buildings.

Standard

Basic design to BS 6724

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 6724(2-5 Cores)
Conductor Annealed copper wire, stranded according to BS EN 60228 class 2.
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.
Bedding: Extruded layer of polymeric material.
Armouring: Galvanized steel wire.
Outer Sheath: Extruded layer of polymeric material LTS 1 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. 4-core: Blue, brown, black and 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: 8 × Overall Diameter

CONSTRUCTION PARAMETERS

Conductor FTX400 1RZ1MZ1-R
No. of Cores × Cross-sectional Area Conductor Class Nominal Insulation Thickness Nominal Bedding Thickness Nominal Steel Wire Armour Diameter Nominal Sheath Thickness Approx. Overall Diameter Approx. Weight
No.×mm² 　 mm mm mm mm mm kg/km
2 Cores
2×1.5a 2 0.6 0.8 0.9 1.3 12.1 294
2×2.5a 2 0.7 0.8 0.9 1.4 13.6 354
2×4a 2 0.7 0.8 0.9 1.4 14.7 420
2×6a 2 0.7 0.8 0.9 1.4 15.9 497
2×10a 2 0.7 0.8 0.9 1.5 18.0 650
2×16a 2 0.7 0.8 1.25 1.5 20.4 964
2×25a 2 0.9 0.8 1.25 1.6 24.1 1314
2×25b 2 0.9 0.8 1.25 1.6 20.4 1254
2×35a 2 0.9 1.0 1.6 1.7 27.7 1832
2×35b 2 0.9 1.0 1.6 1.7 23.3 1736
2×50b 2 1.0 1.0 1.6 1.8 25.8 2261
2×70b 2 1.1 1.0 1.6 1.9 29.0 2922
2×95b 2 1.1 1.2 2.0 2.0 33.1 4029
2×120b 2 1.2 1.2 2.0 2.1 36.1 4796
2×150b 2 1.4 1.2 2.0 2.2 39.3 5646
2×185b 2 1.6 1.4 2.5 2.4 44.7 7365
2×240b 2 1.7 1.4 2.5 2.5 49.0 9027
2×300b 2 1.8 1.6 2.5 2.6 53.5 10832
2×400b 2 2.0 1.6 2.5 2.8 59.0 13216
3 Cores
3×1.5a 2 0.6 0.8 0.9 1.3 12.6 320
3×2.5a 2 0.7 0.8 0.9 1.4 14.1 401
3×4a 2 0.7 0.8 0.9 1.4 15.3 487
3×6a 2 0.7 0.8 0.9 1.4 16.6 588
3×10a 2 0.7 0.8 1.25 1.5 19.5 906
3×16a 2 0.7 0.8 1.25 1.6 21.6 1190
3×25a 2 0.9 1.0 1.6 1.7 26.7 1858
3×25b 2 0.9 1.0 1.6 1.7 23.6 1755
3×35a 2 0.9 1.0 1.6 1.8 29.4 2298
3×35b 2 0.9 1.0 1.6 1.8 25.7 2154
3×50b 2 1.0 1.0 1.6 1.8 28.5 2858
3×70b 2 1.1 1.0 1.6 1.9 32.2 3761
3×95b 2 1.1 1.2 2.0 2.1 37.0 5204
3×120b 2 1.2 1.2 2.0 2.2 40.4 6258
3×150b 2 1.4 1.4 2.5 2.3 45.5 7989
3×185b 2 1.6 1.4 2.5 2.4 49.8 9586
3×240b 2 1.7 1.4 2.5 2.6 55.1 11930
3×300b 2 1.8 1.6 2.5 2.7 60.2 14427
3×400b 2 2.0 1.6 2.5 2.9 66.6 17765
4 Cores
4×1.5a 2 0.6 0.8 0.9 1.3 13.3 388
4×2.5a 2 0.7 0.8 0.9 1.4 15.0 460
4×4a 2 0.7 0.8 0.9 1.4 16.4 566
4×6a 2 0.7 0.8 1.25 1.5 18.7 813
4×10a 2 0.7 0.8 1.25 1.5 21.1 1073
4×16a 2 0.7 0.8 1.25 1.6 23.4 1431
4×25a 2 0.9 1.0 1.6 1.7 28.9 2239
4×25b 2 0.9 1.0 1.6 1.7 26.1 2102
4×35a 2 0.9 1.0 1.6 1.8 31.9 2797
4×35b 2 0.9 1.0 1.6 1.8 28.6 2606
4×50b 2 1.0 1.0 1.6 1.9 32.0 3530
4×70b 2 1.1 1.2 2.0 2.1 37.7 5074
4×95b 2 1.1 1.2 2.0 2.2 41.7 6474
4×120b 2 1.2 1.4 2.5 2.3 47.1 8390
4×150b 2 1.4 1.4 2.5 2.4 51.4 9947
4×185b 2 1.6 1.4 2.5 2.6 56.6 12096
4×240b 2 1.7 1.6 2.5 2.7 63.0 15109
4×300b 2 1.8 1.6 2.5 2.9 68.8 18276
4×400b 2 2.0 1.8 3.15 3.2 78.1 23849
5 Cores
5×1.5a 2 0.6 0.8 0.9 1.4 14.3 413
5×2.5a 2 0.7 0.8 0.9 1.4 16.1 521
5×4a 2 0.7 0.8 0.9 1.5 17.8 658
5×6a 2 0.7 0.8 1.25 1.5 20 932
5×10a 2 0.7 0.8 1.25 1.6 22.9 1258
5×16a 2 0.7 1.0 1.6 1.7 26.6 1893
5×25a 2 0.9 1.0 1.6 1.8 31.5 2646
5×35a 2 0.9 1.0 1.6 1.9 34.8 3326
5×50a 2 1.0 1.2 2 2 40.4 4567
5×70a 2 1.1 1.2 2 2.2 46.3 6056
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
Ground ambient temperature: 20°C

Current-Carrying Capacities (Amp) according to BS 7671:2008 table 4E4A

Conductor crosssectional area Ref. Method C (clipped direct) Ref. Method E (in free air or on a perforated cable tray etc. horizontal or vertical) Ref. Method D (direct in in groud or in ducting in groud. in or around buildings)
1 two-core cable, single-phase a.c. or d.c. 1 three- or fourcore cable, three-phase a.c. 1 two-core cable, singlephase a.c. or d.c. 1 three- or fourcore cable, three-phase a.c. 1 two-core cable, single-phase a.c. or d.c. 1 three- or fourcore cable, threephase a.c.
1 2 3 4 5 6 7
mm2 A A A A A A
1.5 27 23 29 25 25 21
2.5 36 31 39 33 33 28
4 49 42 52 44 43 36
6 62 53 66 56 53 44
10 85 73 90 78 71 58
16 110 94 115 99 91 75
25 146 124 152 131 116 96
35 180 154 188 162 139 115
50 219 187 228 197 164 135
70 279 238 291 251 203 167
95 338 289 354 304 239 197
120 392 335 410 353 271 223
150 451 386 472 406 306 251
185 515 441 539 463 343 281
240 607 520 636 546 395 324
300 698 599 732 628 446 365
400 787 673 847 728 - -

Voltage Drop (Per Amp Per Meter) according to BS 7671:2008 table 4E4B

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
150 0.31 0.32 0.145 0.35 0.38 0.125 0.30
185 0.25 0.26 0.145 0.29 0.22 0.125 0.26
240 0.195 0.200 0.140 0.24 0.175 0.125 0.21
300 0.155 0.160 0.140 0.21 0.140 0.120 0.185
400 0.120 0.130 0.140 0.190 0.115 0.120 0.165
Note: r = conductor resistance at operating temperature
x = reactance
z = impedance