series FC

Nominal cross-section (mm²)	Electrical resistance in D.C. at 20°C (Ohm/km)	Electrical resistance in C.C. at 70°C (Ohm/km)	Inductive reactance at 50Hz (Ohm/Km)		Current-carrying capacity of cables in free air at 40°C as per IEC 364-5-523. Formations in cable ladder or perforated cable trays (Ampere)		Current-carrying capacity of cables directly buried at 25°C soil temperature and soil thermal resistance of 1 km/W as per IEC 364-5-523. (Ampere)
			Multiconductor (1)	4 Conductors (2)	2 Conductors (3)	Multiconductor (4)	2 Conductors (3)	Multiconductor (4)
1	19.5	23.33	0.111	0.119	--	--	--	--
1.5	13.3	15.91	0.104	0.112	18.1	15.3	28	24
2.5	7.98	9.55	0.097	0.104	25	21	37	32
4	4.95	5.92	0.097	0.104	33	29	48	42
6	3.3	3.95	0.091	0.098	42	35	62	52
10	1.91	2.29	0.084	0.092	58	49	84	70
16	1.21	1.45	0.08	0.088	78	67	106	90
25	0.78	0.93	0.08	0.087	98	84	137	117
35	0.554	0.663	0.078	0.085	123	105	164	140
50	0.386	0.462	0.077	0.085	149	126	197	164
70	0.272	0.326	0.074	0.082	192	162	241	200
95	0.206	0.248	0.074	0.081	233	197	291	241
120	0.161	0.194	0.072	0.08	271	228	333	276
150	0.129	0.156	0.072	0.08	314	263	373	309
185	0.106	0.129	0.072	0.08	358	301	423	351
240	0.0801	0.0993	0.072	0.079	425	355	493	407
300	0.0641	0.081	0.071	0.079	490	410	558	460

(1) Calculation of Inductive reactance valid for three-conductor and five-conductor cables. (2) Calculation of Inductive reactance valid for four-conductor cables. (3) The values of current-carrying capacity informed, correspond to three conductor cable (two-conductor + protection conductor). (4) The values of current-carrying capacity informed, correspond to four-conductor, five-conductor.