Aluminum Conductor Characteristics

Characteristics of all-aluminum conductors (AAC).

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All-aluminum conductor characteristics:

AWG	kcmil	Strands	Diameter (in)	GMR (ft)	Resistance (ohm/1000 ft)			Breaking Strength (lb)	Weight (lb/1000 ft)
AWG	kcmil	Strands	Diameter (in)	GMR (ft)	dc 20°C	60 Hz ac 25°C	60 Hz ac 50°C	Breaking Strength (lb)	Weight (lb/1000 ft)
6	26.2	7	0.184	0.0056	0.659	0.673	0.739	563	24.6
4	41.7	7	0.232	0.007	0.414	0.423	0.465	881	39.1
2	66.4	7	0.292	0.0088	0.260	0.266	0.293	1350	62.2
1	83.7	7	0.328	0.0099	0.207	0.211	0.232	1640	78.4
1/0	106	7	0.368	0.0111	0.164	0.167	0.184	1990	98.9
2/0	133	7	0.414	0.0125	0.130	0.133	0.146	2510	125
3/0	168	7	0.464	0.014	0.103	0.105	0.116	3040	157
4/0	212	7	0.522	0.0158	0.0817	0.0835	0.0917	3830	198
	250	7	0.567	0.0171	0.0691	0.0706	0.0777	4520	234
	250	19	0.574	0.0181	0.0693	0.0706	0.0777	4660	234
	267	7	0.586	0.0177	0.0647	0.0663	0.0727	4830	250
	267	19	0.593	0.0187	0.0648	0.0663	0.0727	4970	250
	300	19	0.629	0.0198	0.0575	0.0589	0.0648	5480	281
	336	19	0.666	0.021	0.0513	0.0527	0.0578	6150	316
	350	19	0.679	0.0214	0.0494	0.0506	0.0557	6390	328
	398	19	0.724	0.0228	0.0435	0.0445	0.0489	7110	373
	450	19	0.769	0.0243	0.0384	0.0394	0.0434	7890	422
	477	19	0.792	0.025	0.0363	0.0373	0.0409	8360	447
	477	37	0.795	0.0254	0.0363	0.0373	0.0409	8690	447
	500	19	0.811	0.0256	0.0346	0.0356	0.039	8760	469
	500	37	0.813	0.026	0.0346	0.0356	0.039	9110	468
	557	19	0.856	0.027	0.0311	0.032	0.0352	9750	521
	557	37	0.858	0.0275	0.0311	0.032	0.0352	9940	521
	600	37	0.891	0.0285	0.0288	0.0297	0.0326	10700	562
	636	37	0.918	0.0294	0.0272	0.0282	0.0309	11400	596
	650	37	0.928	0.0297	0.0266	0.0275	0.0301	11600	610
	700	37	0.963	0.0308	0.0247	0.0256	0.028	12500	656
	700	61	0.964	0.031	0.0247	0.0256	0.028	12900	656
	716	37	0.974	0.0312	0.0242	0.025	0.0275	12800	671
	716	61	0.975	0.0314	0.0242	0.0252	0.0275	13100	671
	750	37	0.997	0.0319	0.023	0.0251	0.0263	13100	703
	750	61	0.998	0.0321	0.023	0.0251	0.0263	13500	703
	795	37	1.03	0.0328	0.0217	0.0227	0.0248	13900	745
	795	61	1.03	0.0331	0.0217	0.0227	0.0248	14300	746
	875	37	1.08	0.0344	0.0198	0.0206	0.0227	15000	820
	875	61	1.08	0.0347	0.0198	0.0206	0.0227	15800	821
	900	37	1.09	0.0349	0.0192	0.0201	0.022	15400	844
	900	61	1.09	0.0352	0.0192	0.0201	0.022	15900	844
	954	37	1.12	0.036	0.0181	0.0191	0.0208	16400	895
	954	61	1.13	0.0362	0.0181	0.0191	0.0208	16900	895
	1000	37	1.15	0.0368	0.0173	0.0182	0.0199	17200	937
	1000	61	1.15	0.0371	0.0173	0.0182	0.0199	17700	937

1 ft = 0.3048 m
1 kcmil = 1000 cmil = 785.4 10^-6 in² = 0.5067 mm²

GMR - Geometric Mean Radius - quantifies a conductor’s internal inductance. By definition the GMR is the radius of an infinitely thin tube having the same internal inductance as the conductor out to a one-foot radius. GMR is often in feet to ease the calculations with distances measured in feet. Note that the GMR is less than the actual conductor radius.

Aluminum Conductor Characteristics

Characteristics of all-aluminum conductors (AAC).

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