Size code …naaa… 1400 1500 1630 1800 1999
Conductor size mm² nom 400 500 630 800 1000
Conductor diameter mm app. 24.0 27.5 30.5 34.5 39.0
Insulation diameter mm app. 29.5 33.5 36.5 40.5 45.5
Bedding diameter mm app. 32.5 36.0 40.0 44.0 48.5
Armour diameter mm app. 36.5 40.0 45.0 49.0 53.5
Cable diameter mm app. 41.5 46.0 50.0 54.5 60.0
Cable mass kg/m app. 5.4 6.6 8.5 10.1 12.6
Gross mass (500m) kg app. 2560 3215 4140 4990 6090
Bending radius mm min. 415 460 500 540 600
Current rating (trefoil)
In ground Amps 540 595 650 680 720
In duct Amps 440 470 510 530 560
In air Amps 657 730 809 880 950
Resistance
dc @ 20°C Ω/km max 0.0470 0.0370 0.0280 0.0220 0.0180
ac @ 70°C Ω/km max 0.0620 0.0510 0.0420 0.0280 0.0230
Reactance Ω/km 0.073 0.073 0.072 0.071 0.069
Capacitance µF/km 2.233 2.350 2.585 2.880 3.032
Impedance Ω/km 0.096 0.089 0.083 0.076 0.073
Zero Sequence
Resistance Ω/km 0.407 0.326 0.258 0.203 0.163
Reactance Ω/km 0.288 0.281 0.270 0.259 0.254
Short circuit ratings
Symmetrical kA (1sec) 49.6 63.7 82.4 105.5 132.5
Earth fault kA (1sec) 15.52 17.1 23.8 25.74 28.7
(Three Phase) Volt drop mV/A/m 0.17 0.15 0.14 0.13 0.13
(Single Phase) Volt drop mV/A/m 0.19 0.18 0.17 0.15 0.15