The conductor is composed of alloy elements (magnesium and silicon two elements). The aluminum magnesium silicon alloy conductor has the characteristics of high tensile strength and its tensile strength is about 1.8 to 2 times of the electrical hard aluminum wire. The resistivity is slightly higher than that of the electrician aluminum.
Al Mg Si Aluminum Alloy line is an ideal material for power transmission wire overhead. Aluminum Alloy steel core wire, made of light weight, high strength, low sag, line of low cost. The practical application proves that from high altitude long span heavy ice line, in a large ice test, no ice break accident. According to the comparison of technical and economic analysis Aluminum Alloy steel core wire and steel core aluminum stranded wire, steel core wire using visible Aluminum Alloy in high-voltage transmission lines, especially in the application of large lakes across the lake or complex weather bad ice and snow, heavy snow and ice in the line, there are broad prospects for development.
Steel core aluminum alloy strands parameter table:
Nominal section |
Root number / diameter |
Calculation section area |
external diameter |
Unit length quality |
Rated tensile strength |
Current resistance at 20 degrees centigrade Not greater than |
|||||
aluminum |
steel |
aluminum |
steel |
Total |
JLHA1 |
||||||
No./mm |
mm2 |
mm |
kg/km |
G1A |
G3A |
EST |
Ω/km |
||||
150/8 |
18/3.20 |
1/3.20 |
144.76 |
8.04 |
152.80 |
16.00 |
461 |
55.90 |
58.15 |
59.51 |
0.2311 |
150/20 |
24/2.78 |
7/1.85 |
145.68 |
18.82 |
164.50 |
16.67 |
549 |
69.36 |
74.63 |
76.51 |
0.2301 |
185/10 |
18/3.60 |
1/3.60 |
183.22 |
10.18 |
193.40 |
18.00 |
584 |
68.91 |
71.35 |
72.98 |
0.1826 |
185/25 |
24/3.15 |
7/2.10 |
187.04 |
24.25 |
211.29 |
18.90 |
706 |
89.15 |
95.94 |
98.37 |
0.1792 |
185/30 |
26/2.98 |
7/2.32 |
181.34 |
29.59 |
210.93 |
18.88 |
732 |
92.67 |
100.66 |
104.80 |
0.1850 |
210/10 |
18/3.80 |
1/3.80 |
204.14 |
11.34 |
215.48 |
19.00 |
650 |
76.78 |
79.50 |
81.32 |
0.1639 |
210/25 |
24/3.33 |
7/2.22 |
209.02 |
27.10 |
236.12 |
19.98 |
789 |
99.63 |
107.22 |
109.93 |
0.1604 |
210/35 |
26/3.22 |
7/2.50 |
211.73 |
34.36 |
246.09 |
20.38 |
853 |
107.98 |
117.26 |
122.07 |
0.1584 |
210/50 |
30/2.98 |
7/2.98 |
209.24 |
48.82 |
258.06 |
20.86 |
960 |
123.66 |
136.84 |
143.68 |
0.1603 |
240/30 |
24/3.60 |
7/2.40 |
244.29 |
31.67 |
275.96 |
21.60 |
922 |
113.05 |
121.60 |
126.04 |
0.1372 |
240/40 |
26/3.42 |
7/2.66 |
238.85 |
38.90 |
277.75 |
21.66 |
964 |
121.97 |
132.47 |
137.92 |
0.1405 |
240/55 |
30/3.20 |
7/3.20 |
241.27 |
56.30 |
297.57 |
22.40 |
1107 |
140.34 |
156.10 |
165.68 |
0.1392 |
300/15 |
42/3.00 |
7/1.67 |
296.88 |
15.33 |
312.21 |
23.01 |
940 |
114.43 |
118.72 |
120.25 |
0.1130 |
300/20 |
45/2.93 |
7/1.95 |
303.42 |
20.91 |
324.33 |
23.43 |
1001 |
123.07 |
128.92 |
131.01 |
0.1106 |
300/25 |
48/2.85 |
7/2.22 |
306.21 |
27.10 |
333.31 |
23.76 |
1058 |
131.22 |
138.81 |
141.52 |
0.1096 |
300/40 |
24/3.99 |
7/2.66 |
300.09 |
38.90 |
338.99 |
23.94 |
1132 |
138.87 |
149.38 |
154.82 |
0.1117 |
300/50 |
26/3.83 |
7/2.98 |
302.68 |
48.82 |
351.50 |
24.26 |
1210 |
150.01 |
163.20 |
170.03 |
0.1120 |
300/70 |
30/3.60 |
7/3.60 |
305.36 |
71.25 |
376.61 |
25.20 |
1401 |
174.57 |
191.67 |
203.07 |
0.1099 |
400/20 |
42/3.51 |
7/1.95 |
406.40 |
20.91 |
427.31 |
26.90 |
1286 |
152.48 |
158.33 |
160.42 |
0.0825 |
400/25 |
45/3.33 |
7/2.22 |
391.91 |
27.10 |
419.01 |
26.60 |
1294 |
159.07 |
166.66 |
169.37 |
0.0856 |
400/35 |
48/3.22 |
7/2.50 |
390.88 |
34.36 |
425.24 |
26.80 |
1348 |
166.21 |
175.49 |
180.30 |
0.0859 |
400/50 |
54/3.07 |
7/3.07 |
399.73 |
51.82 |
451.55 |
27.60 |
1510 |
186.91 |
201.42 |
210.23 |
0.0840 |
400/65 |
26/4.42 |
7/3.44 |
398.94 |
65.06 |
464.00 |
28.00 |
1610 |
197.23 |
215.45 |
226.51 |
0.0841 |
400/95 |
30/4.16 |
19/2.50 |
407.75 |
93.27 |
501.02 |
29.10 |
1858 |
234.77 |
259.95 |
273.01 |
0.0823 |
500/35 |
45/3.75 |
7/2.50 |
497.01 |
34.36 |
531.37 |
30.00 |
1641 |
195.73 |
205.01 |
209.82 |
0.0675 |
500/45 |
48/3.60 |
7/2.80 |
488.58 |
43.10 |
531.68 |
30.00 |
1687 |
203.04 |
214.68 |
220.71 |
0.0687 |
500/65 |
54/3.44 |
7/3.44 |
501.88 |
65.06 |
566.94 |
31.00 |
1896 |
234.68 |
252.89 |
263.95 |
0.0669 |
630/45 |
45/4.22 |
7/2.81 |
629.40 |
43.10 |
672.50 |
33.75 |
2078 |
247.70 |
259.50 |
265.55 |
0.0533 |
630/55 |
48/4.12 |
7/3.20 |
639.92 |
56.30 |
696.22 |
34.30 |
2208 |
263.50 |
279.27 |
288.84 |
0.0525 |
630/80 |
54/3.87 |
19/2.32 |
635.19 |
80.32 |
715.51 |
34.80 |
2386 |
291.65 |
313.34 |
324.58 |
0.0529 |
800/55 |
45/4.80 |
7/3.20 |
814.30 |
56.30 |
870.60 |
38.40 |
2689 |
318.43 |
334.20 |
343.77 |
0.0412 |
800/70 |
48/4.63 |
7/3.60 |
808.15 |
71.25 |
879.40 |
38.60 |
2790 |
332.95 |
350.05 |
361.45 |
0.0415 |
800/100 |
54/4.33 |
19/2.60 |
795.17 |
100.90 |
896.07 |
39.00 |
2989 |
365.48 |
392.72 |
406.84 |
0.0422 |