600/1000V Mica+XLPE Insulated, LSZH Sheathed Power Cables to BS 8573 (Single Core)

FFX300 1mRZ1-R (CU/MGT+XLPE/LSZH 600/1000V Class 2)

FFX300 1mRZ1-R (CU/MGT+XLPE/LSZH 600/1000V Class 2)

Application

These XLPE insulated and LSZH sheathed cables are generally used for fixed installation. Suitable for building wiring, especially in areas where smoke and fume emissions may cause a potential threat to life but not for burial in the ground, either directly or in ducts.

Standards

Basic design adapted from BS 8573:2012

Fire Performance

Circuit Integrity IEC 60331-21; EN 6387; BS 8491
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

600/1000 V

Cable Construction

Conductor: Annealed copper conductor, stranded according to BS EN 60228 class 2.
Fire Barrier : Mica glass tape.
Insulation: XLPE type GP 8 according to BS 7655-1.3. HEPR type GP 6 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 : Brown or blue.
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 FFX300 1mRZ1-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 kg/km
1×1.5 2 0.7 0.4 1.4 6.8 58
1×2.5 2 0.7 0.4 1.4 7.2 71
1×4 2 0.7 0.4 1.4 7.8 92
1×6 2 0.7 0.4 1.4 8.3 118
1×10 2 0.7 0.4 1.4 9.3 168
1×16 2 0.7 0.4 1.4 10.3 238
1×25 2 0.9 0.4 1.4 12.0 352
1×35 2 0.9 0.4 1.4 13.2 463
1×50 2 1.0 0.6 1.4 14.7 606
1×70 2 1.1 0.6 1.4 16.7 843
1×95 2 1.1 0.6 1.5 18.8 1139
1×120 2 1.2 0.8 1.5 20.6 1416
1×150 2 1.4 0.8 1.6 22.8 1736
1×185 2 1.6 0.8 1.6 25.0 2154
1×240 2 1.7 1.0 1.7 28.1 2798
1×300 2 1.8 1.0 1.8 30.9 3479
1×400 2 2.0 1.2 1.9 34.5 4419
1×500 2 2.2 1.2 2.0 38.2 5535
1×630 2 2.4 1.4 2.2 43.0 7113
1×800 2 2.6 1.6 2.3 47.9 9026
1×1000 2 2.8 1.6 2.4 53.0 11302

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) Ref. Method G (in free air)
Touching 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
1.5 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
50 158 141 198 175 228 209 242 216 207 275 246
70 200 179 253 222 293 268 310 279 268 353 318
95 241 216 306 269 355 326 377 342 328 430 389
120 278 249 354 312 413 379 437 400 383 500 454
150 318 285 393 342 476 436 504 464 444 577 527
185 362 324 449 384 545 500 575 533 510 661 605
240 424 380 528 450 644 590 679 634 607 781 719
300 486 435 603 514 743 681 783 736 703 902 833
400 - - 683 584 868 793 940 868 823 1085 1008
500 - - 783 666 990 904 1083 998 946 1253 1169
630 - - 900 764 1130 1033 1254 1151 1088 1454 1362
800 - - - - 1288 1179 1358 1275 1214 1581 1485
1000 - - - - 1443 1323 1520 1436 1349 1775 1671

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(clipped direct, on trays or in free air) Ref. Methods A & B (enclosed in conduit or trunking) Ref. Methods C & F (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
1.5 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
50 0.99 1.00 0.29 1.05 0.99 0.180 1.00 0.99 0.27 1.00 0.87 0.25 0.90 0.86 0.155 0.87 0.86 0.180 0.87 0.86 0.26 0.89
70 0.68 0.70 0.28 0.75 0.68 0.175 0.71 0.68 0.26 0.73 0.60 0.24 0.65 0.59 0.150 0.61 0.59 0.175 0.62 0.59 0.25 0.65
95 0.49 0.51 0.27 0.58 0.49 0.170 0.52 0.49 0.26 0.56 0.44 0.23 0.50 0.43 0.145 0.45 0.43 0.170 0.46 0.43 0.25 0.49
120 0.39 0.41 0.26 0.48 0.39 0.165 0.43 0.39 0.25 0.47 0.35 0.23 0.42 0.34 0.140 0.37 0.34 0.165 0.38 0.34 0.24 0.42
150 0.32 0.33 0.26 0.43 0.32 0.165 0.36 0.32 0.25 0.41 0.29 0.23 0.37 0.28 0.140 0.31 0.28 0.165 0.32 0.28 0.24 0.37
185 0.25 0.27 0.26 0.37 0.26 0.165 0.30 0.25 0.25 0.36 0.23 0.23 0.32 0.22 0.140 0.26 0.22 0.165 0.28 0.22 0.24 0.33
240 0.190 0.21 0.26 0.33 0.20 0.160 0.25 0.195 0.25 0.31 0.185 0.22 0.29 0.170 0.140 0.22 0.170 0.165 0.24 0.170 0.24 0.29
300 0.155 0.175 0.25 0.31 0.160 0.160 0.22 0.155 0.25 0.29 0.150 0.22 0.27 0.140 0.140 0.195 0.135 0.160 0.21 0.135 0.24 0.27
400 0.120 0.140 0.25 0.29 0.130 0.155 0.20 0.125 0.24 0.27 0.125 0.22 0.25 0.110 0.135 0.175 0.110 0.160 0.195 0.110 0.24 0.26
500 0.093 0.120 0.25 0.28 0.105 0.155 0.185 0.098 0.24 0.26 0.100 0.22 0.24 0.090 0.135 0.160 0.088 0.160 0.180 0.085 0.24 0.25
630 0.072 0.100 0.25 0.27 0.086 0.155 0.175 0.078 0.24 0.25 0.088 0.21 0.23 0.074 0.135 0.150 0.071 0.160 0.170 0.068 0.23 0.24
800 0.056 - 0.072 0.150 0.170 0.064 0.24 0.25 - 0.062 0.130 0.145 0.059 0.155 0.165 0.055 0.23 0.24
1000 0.045 - 0.063 0.150 0.165 0.054 0.24 0.24 - 0.055 0.130 0.145 0.050 0.155 0.165 0.047 0.23 0.24

Note: *Spacings larger than one cable diameter will result in a large voltage drop.

r = conductor resistance at operating temperature

x = reactance

z = impedance