Size code …naaa… 1050 1070 1095 1120 1150 1185 1240 1300
Conductor size mm² nom 50 70 95 120 150 185 240 300
Conductor diameter mm app. 8.5 10.0 12.0 13.5 15.0 16.5 19.0 21.5
Insulation diameter mm app. 11.5 13.0 15.0 16.5 18.5 21.0 23.5 26.5
Bedding diameter mm app. 13.0 14.5 18.0 19.0 21.0 23.0 26.0 29.0
Armour diameter mm app. 16.0 18.0 21.0 22.5 24.0 26.5 29.0 33.0
Cable diameter mm app. 20.5 22.0 25.0 26.5 28.5 31.0 33.5 38.0
Cable mass kg/m app. 1.0 1.3 1.7 2.0 2.3 2.8 3.4 4.4
Gross mass (500m) kg app. 514 642 851 987 1163 1393 1712 2210
Bending radius mm min. 205 220 250 265 285 310 335 380
Current rating (trefoil)
In ground Amps 203 248 297 337 376 423 485 542
In duct Amps 171 208 249 283 316 355 407 455
In air Amps 181 231 280 324 373 425 501 567
Resistance
dc @ 20°C Ω/km max 0.387 0.268 0.193 0.153 0.124 0.099 0.075 0.060
ac @ 70°C Ω/km max 0.464 0.322 0.232 0.185 0.151 0.121 0.094 0.076
Reactance Ω/km 0.084 0.078 0.077 0.075 0.075 0.075 0.075 0.074
Capacitance µF/km 1.528 1.793 1.846 2.030 2.003 1.990 2.040 2.102
Impedance Ω/km 0.471 0.331 0.245 0.200 0.168 0.143 0.120 0.107
Zero Sequence
Resistance Ω/km 3.255 2.325 1.713 1.356 1.085 0.880 0.678 0.543
Reactance Ω/km 0.388 0.333 0.320 0.305 0.307 0.305 0.301 0.297
Short circuit ratings
Symmetrical kA (1sec) 6.0 8.7 12.1 15.2 18.8 23.5 30.9 38.8
Earth fault kA (1sec) 4.5 5.1 6.1 6.5 7.2 8.0 8.7 12.4
(Three Phase) Volt drop mV/A/m 0.82 0.57 0.42 0.35 0.29 0.25 0.21 0.19
(Single Phase) Volt drop mV/A/m 0.94 0.66 0.49 0.40 0.34 0.29 0.24 0.21