AAAC 1120 All Aluminum Alloy Conductor

Used as bare overhead conductor for primary and secondary distribution. Designed utilizing a high-strength aluminum-alloy to achieve a high strength-to-weight ratio; affords good sag characteristics.

AAAC conductors are extensively used for overhead distribution and transmission lines adjacent to ocean coastlines where there can be a problem of corrosion in the steel of an ACSR construction.

The aluminum alloy conductors are used in replace of single-layer ACSR conductors to reduce power loss in overhead distribution and transmission lines, when replacing the aluminum conductor steel reinforced, the AAAC can save 5-8% of the construction cost.

AAAC referred to have higher strength but lower conductivity than pure aluminum Being lighter, alloy conductors can sometimes be used to advantage in replace of the more conventional ACSR.

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Construction

Aluminum alloy wires 1120, concentrically stranded.In air circuits where more than of the AAC conductor (between 40 and 50%) or lower weight and better corrosion resistance and the ACSR conductor. With a conductivity of 59% IACS, the aluminum alloy 1120 greatly replaces the alloy 6201 in relation to electrical resistance.

Standards

AS 1531

Code Name	No. / Dia. of Wire	Approx. Overall Dia.	Approx. Weight	Calculated Breaking Load	Max. DC Resistance at 20℃
	No./mm	mm	kg/km	kN	Ω/km
CHLORINE	7/2.50	7.50	94	8.18	0.8637
CHROMIUM	7/2.75	8.25	113	9.91	0.7138
FLUORINE	7/3.00	9.00	135	11.80	0.5998
HELIUM	7/3.75	11.25	211	17.60	0.3839
HYDROGEN	7/4.50	13.50	304	24.30	0.2666
IODINE	7/4.75	14.25	339	27.10	0.2393
-	19/3.19	15.95	417	36.06	0.1964
KRYPTON	19/3.25	16.25	433	37.40	0.1892
-	19/3.45	17.25	488	42.18	0.1679
LUTETIUM	19/3.50	17.50	502	41.70	0.1631
-	19/3.69	18.45	558	46.32	0.1468
NEON	19/3.75	18.80	577	47.80	0.1421
-	19/3.91	19.55	627	52.01	0.1307
-	19/4.12	20.60	696	57.75	0.1177
NITROGEN	37/3.00	21.00	720	62.20	0.1143
-	19/4.32	21.60	765	63.50	0.1071
NOBELIUM	37/3.25	22.80	845	72.80	0.0973
-	19/4.70	23.50	906	72.02	0.0905
-	37/3.37	23.59	909	78.40	0.0906
-	37/3.40	23.80	925	79.78	0.0890
OXYGEN	19/4.75	23.80	925	73.60	0.0886
-	37/3.42	23.94	936	80.72	0.0879
-	37/3.44	24.08	947	81.67	0.0869
-	61/2.72	24.48	978	79.75	0.0845
-	37/3.55	24.85	1009	83.50	0.0816
-	37/3.62	25.34	1049	86.80	0.0785
PHOSPHORUS	37/3.75	26.30	1125	93.10	0.0731
-	37/3.79	26.53	1150	95.17	0.0716
-	61/2.95	26.55	1151	93.81	0.0718
-	37/3.794	26.56	1152	95.37	0.0715
-	37/3.85	26.95	1186	98.20	0.0694
-	37/3.96	27.72	1255	103.90	0.0656
-	61/3.16	28.44	1320	107.64	0.0626
SELENIUM	61/3.25	29.30	1400	114.00	0.0592
-	61/3.26	29.34	1405	114.50	0.0588
-	61/3.30	29.70	1440	117.40	0.0574
-	37/4.28	29.96	1466	121.37	0.0561
-	37/4.38	30.66	1535	127.11	0.0536
-	61/3.49	31.41	1610	131.30	0.0513
-	37/4.49	31.43	1613	133.57	0.0510
SILICON	61/3.50	31.50	1620	127.00	0.0510
-	61/3.56	32.04	1676	131.15	0.0493
-	61/3.64	32.76	1752	137.00	0.0472
-	61/3.71	33.39	1820	142.40	0.0454
SULFUR	61/3.75	33.80	1860	145.50	0.0445
-	61/3.79	34.11	1899	148.64	0.0435
-	61/3.85	34.65	1960	153.40	0.0422
-	61/3.92	35.28	2032	159.00	0.0407
-	61/3.99	35.91	2104	164.74	0.0393
-	61/4.05	36.45	2169	169.70	0.0381
-	61/4.12	37.08	2244	175.70	0.0368
-	61/4.18	37.62	2310	180.80	0.0358
-	61/4.24	38.16	2377	186.04	0.0348
-	61/4.30	38.70	2445	191.34	0.0338
-	61/4.35	39.15	2502	195.80	0.0330
-	61/4.36	39.24	2513	196.71	0.0329
-	61/4.43	39.87	2595	203.10	0.0319
-	61/4.49	40.41	2666	208.62	0.0310
-	61/4.54	40.86	2725	204.40	0.0303
-	61/4.60	41.40	2798	209.84	0.0295

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AAAC 1120 All Aluminum Alloy Conductor

Construction

Standards