Wires and cables can be seen everywhere in our life and work, and play a very important role in the development of modern technology and the progress of society. So how are the seemingly simple wires and cables we see in the market produced? Yes, this article mainly focuses on ACSR conductor for detailed explanations.

The current infrastructure construction, power installation and other projects are inseparable from ACSR. Steel core aluminum stranded wire cable belongs to the power system in wire and cable. The main feature of this product is pure conductor metal, without insulation and sheath layer. The processing technology is mainly pressure processing, such as smelting, calendering, drawing, stranding/compression stranding, etc.; the products are mainly used in suburban areas, rural areas, user main lines, switch cabinets, etc.

                                             
How is ACSR conductor produced?
The production process of aluminum steel cored wire is mainly wire drawing and stranding, without too complicated operations. The acsr wire conductor is mainly made of aluminum wire and steel wire, and the internal steel core is generally made of galvanized steel wire. Steel-cored aluminum stranded wire is made of high-carbon steel wire rod, which is cold-drawn into steel wire after surface treatment, and then a certain number of steel wires are twisted into strands according to the steel strand structure, and then made by stress relief and stabilization process. For extended durability, steel wire can be coated with metallic or non-metallic coatings such as galvanized and epoxy coated. In order to increase the clamping force with concrete, the surface can have nicks, etc. After tensioning, the prestressed steel strand has undergone molding process, the structure is more compact, and the surface layer is more suitable for anchor grasping. Unbonded prestressed steel strands are made of ordinary prestressed steel strands, coated with anti-corrosion grease or paraffin, and then wrapped with HDPE.
Joints of steel-cored aluminum conductors: joints are not allowed for all steel cores, no joints are allowed for any round aluminum wire in the 7-strand aluminum wire, and round aluminum wires in the stranded layer of 19 strands and above are not allowed Joints are allowed, but the distance between any two joints on the finished strand should not be less than 15 meters. The aluminum wire should be welded by cold pressure or resistance butt welding, and the joints should be smooth and round. The joints by resistance butt welding should be annealed, and the annealed length of each side should not be less than 200mm.
The twisting direction of the steel-cored aluminum stranded wire: the twisting direction of the adjacent layers should be opposite; the outermost layer of the aluminum wire is right.
Pitch of steel-reinforced aluminum stranded wire: According to the process card, the pitch diameter ratio of any layer of aluminum wire or steel wire should not be greater than the pitch diameter ratio of its adjacent inner layer aluminum wire or steel wire.
Stranding of steel-reinforced aluminum strands: it should be uniform and tight, and the strands should not be scattered in the natural state after cutting.
ACSR conductor wire has the characteristics of simple structure, convenient erection and maintenance, low line cost, large transmission capacity, good conductivity, sufficient mechanical strength, high tensile strength, and increased distance between poles and towers, which is conducive to crossing special geographical locations such as rivers and valleys Conditional laying. Therefore, it is widely used in overhead transmission and distribution lines of various voltage levels.

Features of ACSR conductors:
1. Anti-corrosion performance: When the surface of the ACSR conductor wire is in contact with the air, a thin and firm oxide layer will be formed immediately. This oxide layer is particularly resistant to various forms of corrosion.
2. It has good electrical conductivity, sufficient mechanical strength and high tensile strength;
3. Thermal conductivity and thermal stability, under high temperature working conditions, there is no obvious change in its latitude. It also has sub-damping characteristics, which is conducive to reducing the vibration of the breeze and the line loss of the transmission line.
What are the acsr conductor specifications?      BS215-2-70

Nominal Area (mm2)	Stranding Wire No.and Dia. (No./mm)		Calculated Area(mm2)			Approx Overall Dia. (mm)	ApproxWeight (kg/km)	Calculated Min.Breaking Load (KN)	Calculated D C Resistance at 20oC (Ω/km)	Code Name
	Al.	St.	Al.	St.	Total.
20	6/2.11	1/2.11	20.98	3.50	24.48	6.33	84.85	7.90	1.368	Squirrel
25	6/2.36	1/2.36	26.24	4.37	30.62	7.08	106.10	9.61	1.0930	Gopher
30	6/2.59	1/2.59	31.61	5.27	36.88	7.77	127.80	11.45	0.9077	Weael
40	6/3.00	1/3.00	42.41	7.07	49.48	9.00	171.50	15.20	0.6766	Ferret
50	6/3.35	1/3.35	52.88	8.81	61.70	10.05	213.80	18.35	0.5426	Rabbit
60	6/3.66	1/3.66	63.12	10.52	73.64	10.98	255.30	21.77	0.4546	Mink
60	12/2.59	7/2.59	63.23	36.88	100.10	12.95	463.60	52.94	0.4566	Skunk
70	12/2.79	7/2.79	73.37	42.80	116.20	13.95	538.10	61.20	0.3936	Horse
70	6/4.09	1/4.09	78.84	13.14	91.98	12.27	318.90	27.05	0.3639	Raccon
100	6/4.72	7/1.57	105.00	13.55	118.50	14.15	394.30	32.70	0.2733	Dog
150	30/2.59	7/2.59	158.10	36.88	194.90	18.13	725.70	69.20	0.1828	Wolf
150	18/3.35	1/3.35	158.70	8.81	167.50	16.75	505.70	35.70	0.1815	Dingo
175	30/2.79	7/2.79	183.40	42.80	226.20	19.53	842.40	79.80	0.1576	Lynx
175	18/3.61	1/3.61	184.30	10.24	194.50	18.05	587.60	41.10	0.1563	Caracal
200	30/3.00	7/3.00	212.10	49.48	261.50	21.00	973.80	92.25	0.1363	Panther
200	18/3.86	1/3.86	210.60	11.70	222.30	19.30	671.40	46.55	0.1367	Jaguar
250	30/3.35	7/3.35	264.40	61.70	326.10	23.45	1214.00	111.40	0.1093	Bear
300	30/3.71	7/3.71	324.30	75.67	400.00	25.97	1489.00	135.70	0.08912	Goat
300	18/4.78	7/1.68	323.10	15.52	338.60	24.16	1012.00	69.64	0.08914	Batang
350	54/3.00	7/3.00	371.70	49.48	431.20	27.00	1443.00	120.70	0.07572	Bison
400	54/3.18	7/3.18	428.90	55.59	484.50	28.62	1022.00	131.90	0.06741	Zebra
450	30/4.50	7/4.50	447.00	111.30	588.30	31.50	2190.00	198.30	0.06057	EIK
450	54/3.35	7/3.35	476.00	61.70	537.30	30.15	1800.00	146.20	0.06074	Camel
10	6/1.50	1/1.50	10.62	1.77	12.39	4.50	43	4.13	2.7060	Mole
35	6/2.79	1/2.79	36.66	6.11	42.77	8.37	149	13.17	0.7822	Fox
75	6/3.39	1/3.39	75.00	12.50	87.50	11.97	304	25.76	0.3825	Beaver
85	6/4.22	1/4.22	83.94	13.99	97.93	12.66	339	28.80	0.3419	Otter
95	6/4.50	1/4.50	95.40	15.90	111.30	13.50	386	32.70	0.3007	Cat
105	6/4.72	1/4.72	14.16	17.50	105.00	14.16	424	35.90	0.2733	Hare
105	7/4.39	7/1.93	105.95	20.48	126.43	14.57	450	41.00	0.2702	Hyena
130	6/5.28	7/1.75	131.37	16.84	148.21	15.81	492	40.80	0.2184	Leopard
130	26/2.54	7/1.91	131.74	20.06	131.74	15.89	520	46.30	0.2191	Coyote
130	18/3.05	1/3.05	131.58	7.31	138.89	15.25	419	30.00	0.2190	Couqar
130	30/2.36	7/2.36	131.22	30.62	161.84	16.52	602	58.00	0.2202	Tiger
240	30/3.18	7/3.18	238.30	55.60	293.90	22.26	1094	100.50	0.1213	Lion
528	54/3.53	7/3.35	528.50	68.50	597.00	31.77	1996	161.00	0.0547	Moose

 

                                               

What are the storage methods for ACSR conductor wire?
As we all know, the main problem in the storage of ACSR conductor wire is to prevent corrosion. If the ACSR conductor wire factory products are corroded and rusted, it will not only affect the appearance, but also affect the performance of the ACSR conductor wire. Therefore, in order to ensure that the ACSR conductor wire has sufficient tensile strength and the galvanized layer has corrosion resistance to meet the requirements of long-distance and large-span erection at high altitudes, it needs to be stored Store in a dry environment.