APPLICATION
AAAC is mainly used as bare overhead transmission cable and as primary and secondary distribution cable. It is also suitable for laying across basins, rivers and valleys where special geographical textures exist.

STANDARD
Basic design to IEC 61089 standard.

CONSTRUCTION
AAAC cable consists of aluminum alloy wires. The aluminum alloy wires are concentrically stranded. This section deals with heat-treatable magnesium silicon type aluminium alloys to the applicable international standard, the electrical and mechanical properties of which all fall within the values suggested by relevant standard. Conductors to all other recognized specifications can also be supplied. The alloys referred to have higher strength but lower conductivity than pure aluminium. Being lighter, alloy conductors can sometimes be used to advantage in place of the more conventional ACSR; Having lower breaking loads than the later, their use becomes particularly favourable when ice and wind loadings are low.

ELECTRICAL PROPERTIES

Density@20ºC	2.70 kg/dm
Temperature Coefficient@20°C	0.00360 (°C)
Resistivity@20°C	0.0326 Ohms mm2 /m
Linear Expansivity	23 x10-6 (°C)

SERVICE CONDITIONS

Ambient Temperature	-5°C - 50°C
Wind Pressure	80 – 130kg/m2
Seismic Acceleration	0.12 - 0.05g
Isokeraunic Level	10 – 18
Relative Humidity	5 – 100%

CONSTRUCTION PARAMETERS

Code	Nominal Area	Stranding	Overall	Weight	Rated	Electrical	Current
			Diameter		Strength	Resistance	Rating*
	mm2	No.×mm	mm	kg/km	KN	Ω/Km	A
16	18.4	7/1.83	5.49	50.4	5.43	1.7896	86
25	28.8	7/2.29	6.87	78.7	8.49	1.1453	113
40	46	7/2.89	8.67	125.9	13.58	0.7158	151
63	72.5	7/3.36	10.89	198.3	21.39	0.4545	200
100	115	19/2.78	13.9	316.3	33.95	0.2877	266
125	144	19/3.10	15.5	395.4	42.44	0.2302	305
160	184	19/3.51	17.55	506.1	54.32	0.1798	355
200	230	19/3.93	19.65	632.7	67.91	0.1439	407
250	288	19/4.39	21.95	790.8	84.88	0.1151	466
315	363	37/3.53	24.71	998.9	106.95	0.0916	535
400	460	37/3.98	27.86	1268.4	135.81	0.0721	618
450	518	37/4.22	29.54	1426.9	152.79	0.0641	663
500	575	37/4.45	31.15	1585.5	169.76	0.0577	706
560	645	61/3.67	33.03	1778.4	190.14	0.0516	755
630	725	61/3.89	35.01	2000.7	213.9	0.0458	809
710	817	61/4.13	37.17	2254.8	241.07	0.0407	866
800	921	61/4.38	39.42	2540.6	271.62	0.0361	928
900*	1036	91/3.81	41.91	2861.1	305.58	0.0321	992
1000*	1151	91/4.01	44.11	3179	339.53	0.0289	1051
1120*	1289	91/4.25	46.75	3560.5	380.27	0.0258	1118
1250*	1439	91/4.49	49.39	3973.7	424.41	0.0231	1185

(*) Note: The values of current rating mentioned in above Table are based on wind velocity of 0.6 metre/second, solar heat radiation of 1200 watt/metre2, ambient temperature of 50° C & conductor temperature of 80°C.