Stranded Bare Copper Wire 50mm2 70mm² ASTM B8 for Electrical Earthing Cable

Product Description

 

Product Description

Conductor is concentrically stranded with bare copper or copper alloy wire.
Stranded bare copper and copper alloy are suitable for overhead power transmission systems and overhead electric traction systems.

Detailed Photos

 

 

Standard

• BS 7884   • ASTM B 8     • DIN 48201-1    • TB/T 3111

BS 7884

Hard Drawn Copper Stranded Conductors

Nominal area of cross-section of stranded conductor	Construction (stranding and wire diameter)	Overall diameter of conductor (approx.)	Nominal mass per unit length	Resistance at 20 °C		Minimum breaking load
				Nominal	Max.
mm²	number/mm	mm	kg/km	Ω/km	Ω/km	N
10	7/1.35	4.05	89.82	1.788	1.829	3752
14	7/1.60	4.8	126.2	1.273	1.303	5267
16	3/2.65	5.7	148.3	1.082	1.106	6194
16	7/1.70	5.1	142.4	1.128	1.154	5946
25	7/2.10	6.3	217.3	0.7391	0.7563	9073
32	3/3.75	8.06	296.9	0.5405	0.552	12400
32	7/2.46	7.38	298.2	0.5386	0.5497	12442
35	7/2.50	7.5	308	0.5215	0.5337	12860
50	7/3.00	9	443.5	0.3622	0.3706	18520
50	19/1.80	9	435.8	0.3727	0.3819	17700
70	7/3.55	10.65	621.1	0.2586	0.2646	25930
70	19/2.10	10.5	593.2	0.2738	0.2806	24090
95	19/2.50	12.5	840.7	0.1932	0.198	34140
100	7/4.30	12.9	911.2	0.1763	0.181	36540
120	19/2.80	14	1055	0.154	0.1578	42830
125	19/2.90	14.5	1131	0.1436	0.1471	45940
150	19/3.20	16	1377	0.118	0.1208	55940
150	37/2.25	15.75	1334	0.1233	0.1264	53880
185	19/3.55	17.75	1695	0.09582	0.09815	68860
185	37/2.50	17.5	1647	0.09981	0.1024	66490
12	3/2.30	4.95	112.4	1.743	1.78	6968
16	7/1.70	5.1	143.3	1.368	1.399	8883
22	7/2.00	6	198.3	0.9882	1.011	12290
25	7/2.10	6.3	218.7	0.8959	0.9171	13550
30	7/2.30	6.9	262.3	0.7469	0.7645	16260
35	7/2.50	7.5	309.9	0.6324	0.6471	19210
38	7/2.60	7.8	335.2	0.5847	0.5983	20780
45	7/2.90	8.7	417	0.4698	0.4809	24600
55	7/3.20	9.6	507.8	0.3859	0.395	29950
70	19/2.10	10.5	596.8	0.3316	0.3403	35990
75	7/3.70	11.1	678.8	0.2887	0.2954	38010
95	19/2.50	12.5	845.9	0.2343	0.24	51010
100	7/4.30	12.9	916.9	0.2138	0.2195	51160
120	19/2.80	14	1061	0.1862	0.1914	60890
125	19/2.90	14.5	1138	0.1739	0.1784	65310
150	19/3.20	16	1386	0.1428	0.1465	79530
150	37/2.25	15.75	1342	0.1493	0.1533	80490
180	19/3.50	17.5	1658	0.1196	0.1225	95140
180	37/2.50	17.5	1657	0.1209	0.1242	99330
200	19/3.70	18.5	1853	0.1068	0.1696	100900
240	19/4.00	20	2165	0.09153	0.09378	117900

ASTM B 8 

Size of Conductor	Size of Conductor	Nominal Conductor Diameter, inA	Nominal ConductorDiameler, inA	Nominal Conductor Diameler, inA	Nominal Conductor Diameler, inA	Nominal Conductor Diameler, inA		Mass	Mass	dc Resistance at 20°C	dc Resistance at 20°C
		Concentric Strand	Concentric Strand	Concentric Strand	Concentric Strand	Concentric Strand
cmil or AWG numbers	mm^2	Class A A	Class A	Class B	Reverse	Unilay Compressed	Area in2	lbs/1000 ft	kg/km	Ω /1000 ft	Ω/km
					Concentric	Diameter
					Compreseed	in
					Class B
					Diameter
					in
*5 000 000cmil	2530	-	2.58	2 581	-	-	3.927	15 890	23649	0.00218	0.00715
4 500 000 cmil	2280	-	2.448	2.448	-	-	3.534	14 300	21283	0.00242	0.00794
4 000 000 cmil	2030	-	2.307	2 309	-	-	3.142	12 590	18738	0.0027	0.00888
3 500 000 cmil	1770	-	2.158	2159	-	-	2.749	11 020	16401	0.00308	0.0101
*3 000 000cmil	1520	-	1.998	1.998	-	-	2.356	9353	13920	0.00356	0.0117
*2 500 000cmil	1270	-	1.823	1. .824	-	-	1.963	7 794	11600	0.00427	0.014
*2 000 000cmil	1010	-	1.63	1. .632	1.583	1.533	1.571	6175	9 190	0.00529	0.0174
1 900 000 cmil	963	-	1. 590	1. .590	1.542	1.494	1.492	5 866	8 730	0.00557	0.0183
1 800 000 omil	912	-	1. 547	1. .548	1.502	1.454	1.414	5558	8 272	0.00588	0.0193
*1 750 000cmil	887	-	1.526	1.526	1 .480	1.434	1.374	5 403	8 041	0.00604	0.0198
1 700 000 cmil	861	-	1.504	1. 504	1.459	1.413	1.335	5249	7812	0.00622	0.0204
1 600 000 cmil	801	-	1.459	1.459	1.415	1.371	1.257	4 940	7352	0.00661	0.0217
*1 500 000cmil	760	-	1.411	1.412	1.37	1.327	1.178	4 631	6 892	0.00705	0.0231
1 400 000 cmilt	709	-	1. 364	1. .364	1.323	1.282	1.1	4 323	6 435	0.00756	0.0248
1300 000 cmil	659	-	1.314	1.315	1.275	1.236	1.021	4 014	5974	0.00814	0.0267
*1250 000cmil	633	-	1.288	1. .289	1.25	1.212	0.9817	3859	5 743	0.00846	0.0278
1 200 000 cmil	608	-	1.263	1.263	1.225	1.187	0.9425	3 705	5514	0.00882	0.0289
1 100 000 cmil	557	-	1. 209	1. 209	1.173	1.137	0.8639	3396	5 054	0.00962	0.0316
*1 000 000cmil	507	1.151	1.152	1.152	1.117	1.084	0.7854	3088	4 596	0.0106	0.0348
900 000 cmil	456	1.092	1.094	1.094	1.06	1.028	0.7069	2779	4 136	0.0118	0.0387
*800 000 cmil	405	1.029	1.031	1.031	1	0.969	0.6283	2470	3676	0.0132	0.0433
*750 000 cmil	380	0.997	0.998	0.998	0.968	0.939	0.5800	2316	3447	0.0141	0.0462
*700 000 cmil	355	0.963	0.964	0.964	0.935	0.907	0.5498	2161	3216	0.0151	0.0495
650 000 cmil	329	0.928	0.929	0.929	0.901	0.874	0.5106	2007	2 987	0.0163	0.0535
*600 000 cmil	304	0.891	0.891	0.893	0.866	0.84	0.4712	1 853	2 758	0.0176	0.0578
550 000 cmil	279	0.853	0.853	0.855	0.829	0.804	0.432	1 698	2527	0.0192	0.063
*500 000 cmil	253	0.811	0.813	0.813	0.789	0.766	0.3927	1 544	2298	0.0212	0.0695
450 000 cmil	228	0.77	0.772	0.772	0.749	0.727	0 3534	1 389	2 067	0.0235	0.0771
*400 000 cmil	203	0.726	0.726	0.728	0.706	0.685	0.3142	1 235	1 838	0.0264	0.0866
*350 000 cmil	177	0.71	0.679	0.681	0.661	0.641	0.2749	1 081	1 609	0.0302	0.0991
*300 000 cmil	152	0.657	0.629	0.63	0.611	0.594	0.2356	926.3	1378.6	0.0353	0.116
*250 000 amil	127	0.6	0.574	0.575	0.558	0.542	0.1963	771.9	1148.8	0.0423	0.139
* No.0000	107	0.522	0 522	0.528	0.512	0.498	0.1662	653.1	972	0.05	0.164
" No.000	85	0.464	0.464	0.47	0.456	0.443	0.1318	518.1	771.1	0.063	0.207
* No. 00	67.4	0.414	0.414	0.419	0.405	0.395	0.1045	410.9	611.5	0.0795	0.261
*No.0	53.5	0.368	0.368	0.373	0.362	0.352	0.08289	325.8	484.9	0.1	0.328
* No, 1,3 wire	42.4	0.36	-	-	-	-	0.06573	255.9	380.9	0.126	0.413
* No. 1	42.4	-	0.328	0.332	0.322	0.313	0.06573	258.4	384.6	0.126	0.413
*No.2,3wire	33.6	0.32	-	-	-	-	0.05213	202.9	301.9	0.159	0.522
*No.2	33.6	-	0.292	0.292	0.283	-	0.05213	204.9	304.9	0.159	0.522
*No.3.3wire	26.7	0.285	-	-	-	-	0.04134	160.9	239.5	0.201	0.659
"No.3	26.7		0.26	0.26	0.252	-	0.04134	162.5	241.9	0.201	0.659
*No. 4, 3 wire	21.2	0.254	-	-	-	-	0.03278	127.6	189.9	0.253	0.83
"No.4	21.2	-	232	0.232	0.225	-	0.03278	128.9	191.8	0.253	0.83
* No.5	16.8	-	-	0.206	0.2	-	0.026	102.2	152.1	0.319	1.05
*No. 6	13.3	-	-	0.184	0.178	-	0.02062	81.05	120.63	0.403	1.32
* No.7	10.6	-	-	0.164	0.159	-	0.01635	64.28	95.67	0.509	1.67
* No.8	8.37	-	-	0.146	0.142	-	0.01297	50.97	75.86	0.64	2.1
* No.9	6.63	-	-	0.13	0.126	-	0.01028	40.42	60.16	0.809	2.65
* No. 10	5.26	-	-	0.116	0.113	-	0.008155	32.06	47.72	1.02	3.35
* No. 12	3.31	-	-	0.0915	0.089	-	0.005129	20.16	30	1.63	5.35
* No.14	2.08	-	-	0.0726	0.071	-	0.003225	12.68	18.87	2.58	8.46
* No. 16	0.823	-	-	0.0576	-	-	0.002028	7.974	11.868	4.1	13.45
*No.18	0.519	-	-	0.0456	-	-	0.001276	5.015	7.484	6.54	21.46
* No.20	0.519	-	-	0.0363	-	-	0.0008023	3.154	4.694	10.3	33.8
* No.22	0.324	-	-	0.0288	-	-	0.0005067	1.992	2.965	16.4	53.8
* No.24	0.205	-	-	0.0228	-	-	0.0003176	1.249	1.859	26.1	85.6

- Class AA conductors are usually used in overhead lines where high strength and low flexibility are required.

- Class A conductors are suitable for covering with weather-resistant materials or for bare applications where more flexibility than Class AA is needed.

- Class B conductors are designed for insulating with various materials or for more flexible applications than Class A.

- Class C and D conductors offer even more flexibility than Class B and are used where extreme bending is required.

DIN 48201

Copper Stranded Wire

Nominal area	Cross- sectional	Wire		Overall	Approx. mass per	Rated strength	Current carrying
mm^2	area			diameter	unit length	kN	capacity
	mm^2	Number	Diameter	mm	kg/km		A
			mm
10	10.02	7	1.35	4.1	90	4.02	90
16	15.89	7	1.7	5.1	143	6.37	125
25	24.25	7	2.1	6.3	218	9.72	160
35	34.36	7	2.5	7.5	310	13.77	200
50	49.48	7	3	9	446	19.84	250
	48.35	19	1.8	9	437	19.38	250
70	65.81	19	2.1	10.5	596	26.38	310
95	93.27	19	2.5	12.5	845	37.39	380
120	116.99	19	2.8	14	1060	46.9	440
150	147.11	37	2.25	15.8	1337	58.98	510
185	181.62	37	2.5	17.5	1649	72.81	585
240	242.54	61	2.25	20.3	2209	97.23	700
300	299.43	61	2.5	22.5	2725	120.04	800
400	400.14	61	2.89	26	3640	160.42	960
500	499.83	61	3.23	29.1	4545	200.38	1110
Note: Current carrying capacity are valid up to a frequency of 60 Hz,a wind velocity of 0.6 m/s, an initial ambient temperature of 35 °C and a conductor temperature of 70°C.

TBT 3111

Copper and Copper Alloy Stranded Wire

Type	Section area		Calculated overall	Structure	Single wire diameter	Single wire			Stranded wire (Nominal)
	mm^2		diameter		mm	Min. tensile strength		Min.	Min.	Mass per
			mm			MPa		elongation	breaking load	unit length
	Nominal	Cross- sectional				Before	After	%	kN	kg/km
						stranding	stranding
JT	70	65.81	10.5	1×19	2.1	430	410	0.7	27.45	596
JT	95	93.27	12.5	1×19	2.5	430	410	0.7	38.54	844
JT	120	116.99	14	1×19	2.8	430	410	0.7	48.01	1059
JT	150	147.12	15.75	1×37	2.25	430	410	0.7	61.21	1334
JTM	25	24.25	6.3	1×7	2.1	520	494	-	11.98	218
JTM	35	34.36	7.5	1×7	2.5	520	494	-	16.97	309
JTM	35	34.93	7.65	1×19	1.53	520	494	-	17.26	316
JTM	50	49.48	9	1×7	3	520	494	-	24.44	446
JTM	50	48.35	9	1×19	1.8	520	494	-	23.88	438
JTM	70	65.81	10.5	1×19	2.1	520	494	-	32.51	596
JTM	95	93.27	12.5	1×19	2.5	520	494	-	46.08	844
JTM	120	116.99	14	1×19	2.8	520	494	-	57.79	1059
JTM	150	147.12	15.75	1×37	2.25	520	494	-	72.67	1334
JTMH	25	24.25	6.3	1×7	2.1	620	589	-	14.28	218
JTMH	35	34.36	7.5	1×7	2.5	620	589	-	20.24	309
JTMH	35	34.93	7.65	1×19	1.53	620	589	-	20.57	316
JTMH	50	49.48	9	1×7	3	620	589	-	29.14	446
JTMH	50	48.35	9	1×19	1.8	620	589	-	28.48	438
JTMH	70	65.81	10.5	1×19	2.1	620	589	-	38.76	596
JTMH	95	93.27	12.5	1×19	2.5	620	589	-	54.94	844
JTMH	120	116.99	14	1×19	2.8	620	589	-	68.91	1059
JTMH	150	147.11	15.75	1×37	2.25	620	589	-	86.65	1334
JTMM	70	65.81	10.5	1×19	2.1	620	589	-	38.76	596
JTMM	95	93.27	12.5	1×19	2.5	620	589	-	54.94	844
JTMM	120	116.99	14	1×19	2.8	620	589	-	68.91	1059
JTMM	150	147.11	15.75	1×37	2.25	620	589	-	86.65	1334
JTCZ120	120	119.75	14.21	1×37	2.03	520	494	-	59.16	1092

 

Certifications

 

 

Packaging & Shipping

 

Quality Testing

 

Company Profile

Henan Xunda Cable Co., Ltd., established in 2001, is a manufacturer specializing in the R&D and production of high-quality wires and cables. With over 20 years of experience, we provide reliable cable solutions, strengthened by our subsidiary, Xina Cable, for global reach and better service.
 

Located in the Industrial Zone of Gongyi, Zhengzhou City, Henan, China, our 30,000 square meter factory employs over 100 staff, including 20 senior technicians. With 30+ advanced production lines including high-speed drawing, stranding, and extrusion equipment, our daily bare conductor production capacity achieves more than 100 tons. Our strict quality control system and full-scale testing equipment ensure all products comply with ISO9001, CCC, and international standards, ensuring safety, durability, and reliability.

 

We produce a wide range of cables, including AAC, AAAC, ACSR, Power Cables (up to 35KV), Control Cables, Concentric Cables, Solar Cables, Building Wires, Nylon Wires, LSOH wires, and Branch Cables. Our products are widely used in power transmission, petrochemicals, metallurgy, construction, and infrastructure projects.
 

We have exported to over 20 countries, including Chile, Dominica, Panama, Colombia, Nicaragua, Peru, Philippines, Vietnam, Malaysia, Australia, PNG, Burundi, Tanzania, Madagascar, Angola among others. We provide 48-hour technical support, flexible payments, and efficient logistics for smooth transactions and timely delivery.
 

 

FAQ

1.Are you a manufacturer?

Yes, we are the manufacturer.
2.What are your main products?
We produce a wide range of cables, including AAC, AAAC, ACSR, Power Cables (up to 35KV), Control Cables, Concentric Cables, Solar Cables, Building Wires, Nylon Wires, LSOH wires, and Branch Cables. Our products are widely used in power transmission, petrochemicals, metallurgy, construction, and infrastructure projects.

3.Do you provide samples? 

Yes, we could offer the samples for free.

4.Is the quality of your products guaranteed?

We have passed ISO9001, ISO14001, ISO45001, and all our products have CE certificates.

5.Which markets do you involve mainly in?

We have exported to over 20 countries, including Chile, Dominica, Panama, Colombia, Nicaragua, Peru, Philippines, Vietnam, Malaysia, Australia, PNG, Burundi, Tanzania, Madagascar, Angola among others.

6. What is your payment term?

T/T,L/C,D/P D/A,Credit Card