HDBC – Hard Drawn Bare Copper Conductor

Stranded bare copper conductors are suitable for use in overhead power transmission systems. They are also made for overhead electric traction systems, like those that power electric trains or trolleys.

Features:

Concentric-lay stranded copper wire
Made from bare copper wire
Hard-drawn for strength

Hard Drawn Bare Copper (HDBC) Conductors are made by stranding bare copper wires together in a concentric pattern. They are a type of Copper and Copper Alloy Stranded Conductor.

They are suitable for use in overhead power transmission systems and overhead electric traction systems.

The product is manufactured in compliance with several key international standards, which include:

ASTM B8 Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
BS 7884 Copper and Copper – Cadmium Stranded Conductors for Overhead Electric Traction and Power Transmission Systems
DIN 48201-1 Seile aus kupfer
TB/T 3111 Copper and Copper Alloy Stranded Conductors for Electric Railway

Hard Drawn Bare Copper Conductor – BS EN 7884

Nominal Cross Section Area (mm²)	No./Nominal Dia. of Wire (No./mm)	Approx. Overall Dia. ( mm)	Approx. weight (kg/km)	Nominal DC Resistance at 20°C – Nominal ( Ω/km)	Nominal DC Resistance at 20°C – Max. ( Ω/km)	Nominal Breaking Load ( N)
10	7/1.35	4.05	89.82	1.7880	1.8290	3752
14	7/1.60	4.80	126.2	1.2730	1.3030	5267
16	3/2.65	5.70	148.3	1.0820	1.1060	6194
16	7/1.70	5.10	142.4	1.1280	1.1540	5946
25	7/2.10	6.30	217.3	0.7391	0.7563	9073
32	3/3.75	8.06	296.9	0.5405	0.5520	12400
32	7/2.46	7.38	298.2	0.5386	0.5497	12442
35	7/2.50	7.50	308.0	0.5215	0.5337	12860
50	7/3.00	9.00	443.5	0.3622	0.3706	18520
50	19/1.80	9.00	435.8	0.3727	0.3819	17700
70	7/3.55	10.65	621.1	0.2586	0.2646	25930
70	19/2.10	10.50	593.2	0.2738	0.2806	24090
95	19/2.50	12.50	840.7	0.1932	0.1980	34140
100	7/4.30	12.90	911.2	0.1763	0.1810	36540
120	19/2.80	14.00	1055	0.1540	0.1578	42830
125	19/2.90	14.50	1131	0.1436	0.1471	45940
150	19/3.20	16.00	1377	0.1180	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	17.50	1647	0.09981	0.1024	66490
12	3/2.30	4.95	112.4	1.743	1.780	6968
16	7/1.70	5.10	143.3	1.368	1.399	8883
22	7/2.00	6.00	198.3	0.9882	1.011	12290
25	7/2.10	6.30	218.7	0.8959	0.9171	13550
30	7/2.30	6.90	262.3	0.7469	0.7645	16260
35	7/2.50	7.50	309.9	0.6324	0.6471	19210
38	7/2.60	7.80	335.2	0.5847	0.5983	20780
45	7/2.90	8.70	417.0	0.4698	0.4809	24600
55	7/3.20	9.60	507.8	0.3859	0.3950	29950
70	19/2.10	10.50	596.8	0.3316	0.3403	35990
75	7/3.70	11.10	678.8	0.2887	0.2954	38010
95	19/2.50	12.50	845.9	0.2343	0.2400	51010
100	7/4.30	12.90	916.9	0.2138	0.2195	51160
120	19/2.80	14.00	1061	0.1862	0.1914	60890
125	19/2.90	14.50	1138	0.1739	0.1784	65310
150	19/3.20	16.00	1386	0.1428	0.1465	79530
150	37/2.25	15.75	1342	0.1493	0.1533	80490
180	19/3.55	17.75	1658	0.1196	0.1225	95140
180	37/2.50	17.50	1657	0.1209	0.1242	99330
200	19/3.70	18.50	1853	0.1068	0.1696	100900
240	19/4.00	20.00	2165	0.09153	0.09378	117900

Hard Drawn Bare Copper Conductor – DIN 48201

Nominal Area	Cross- Sectional Area	Wire Number	Wire Diameter	Overall Diameter	Approx. Mass per Unit Length	Rated Strength	Current Carrying Capacity
mm²	mm²	Wire Number	mm	mm	kg/km	kN	A
10	10.02	7	1.35	4.1	90	4.02	90
16	15.89	7	1.70	5.1	143	6.37	125
25	24.25	7	2.10	6.3	218	9.72	160
35	34.36	7	2.50	7.5	310	13.77	200
50	49.48	7	3.00	9.0	446	19.84	250
50	48.35	19	1.80	9.0	437	19.38	250
70	65.81	19	2.10	10.5	596	26.38	310
95	93.27	19	2.50	12.5	845	37.39	380
120	116.99	19	2.80	14.0	1060	46.90	440
150	147.11	37	2.25	15.8	1337	58.98	510
185	181.62	37	2.50	17.5	1649	72.81	585
240	242.54	61	2.25	20.3	2209	97.23	700
300	299.43	61	2.50	22.5	2725	120.04	800
400	400.14	61	2.89	26.0	3640	160.42	960
500	499.83	61	3.23	29.1	4545	200.38	1110

Note: Reference values for continuous current-carrying capacity are valid up to 60 Hz at the given wind velocity of 0.6 m/s and sun impact (for Germany) for a starting ambient temperature of 35°C and a final temperature of the conductor of 70°C.

Hard Drawn Bare Copper Conductor – TB/T 3111

Type	Section Area (Nominal)	Section Area (Calculated)	Calculated Overall Diameter	Structure	Single Wire Diameter	Single Wire Min. Tensile Strength (Before Stranding)	Single Wire Min. Tensile Strength (After Stranding)	Single Wire Min. Elongation	Conductor Min. Breaking Load	Conductor Mass per Unit Length
Type	mm²	mm²	mm	Structure	mm	Mpa	Mpa	%	kN	kg/km
JT	70	65.81	10.50	19	2.10	430	410	0.7	27.45	596
JT	95	93.27	12.50	19	2.50	430	410	0.7	38.54	844
JT	120	116.99	14.00	19	2.80	430	410	0.7	48.01	1059
JT	150	147.12	15.75	37	2.25	430	410	0.7	61.21	1334
JTM	25	24.25	6.30	7	2.10	520	494	—	11.98	218
JTM	35	34.36	7.50	7	2.50	520	494	—	16.97	309
JTM	35	34.93	7.65	19	1.53	520	494	—	17.26	316
JTM	50	49.48	9.00	7	3.00	520	494	—	24.44	446
JTM	50	48.35	9.00	19	1.80	520	494	—	23.88	438
JTM	70	65.81	10.50	19	2.10	520	494	—	32.51	596
JTM	95	93.27	12.50	19	2.50	520	494	—	46.08	844
JTM	120	116.99	14.00	19	2.80	520	494	—	57.79	1059
JTM	150	147.12	15.75	37	2.25	520	494	—	72.67	1334
JTMM	70	65.81	10.50	19	2.10	620	589	—	38.76	596
JTMM	95	93.27	12.50	19	2.50	620	589	—	54.94	844
JTMM	120	116.99	14.00	19	2.80	620	589	—	68.91	1059
JTMM	150	147.12	15.75	37	2.25	620	589	—	86.65	1334
JTMH	25	24.25	6.30	7	2.10	620	589	—	14.28	218
JTMH	35	34.36	7.50	7	2.50	620	589	—	20.24	309
JTMH	35	34.93	7.65	19	1.53	620	589	—	20.57	316
JTMH	50	49.48	9.00	7	3.00	620	589	—	29.14	446
JTMH	50	48.35	9.00	19	1.80	620	589	—	28.48	438
JTMH	70	65.81	10.50	19	2.10	620	589	—	38.76	596
JTMH	95	93.27	12.50	19	2.50	620	589	—	54.94	844
JTMH	120	116.99	14.00	19	2.80	620	589	—	68.91	1059
JTMH	150	147.12	15.75	37	2.25	620	589	—	86.65	1334
JTCZ120	120	119.75	14.21	37	2.03	520	494	—	59.16	1092

Send Inquiry

Contact Us

Email Address

[email protected]

+86 13703994527

Facebook

Henan Zhong Dong Cable

Youtube

Henan Zhong Dong Cable

Twitter

Henan Zhong Dong Cable

HDBC – Hard Drawn Bare Copper Conductor

Hard Drawn Bare Copper Conductor – BS EN 7884

Hard Drawn Bare Copper Conductor – DIN 48201

Hard Drawn Bare Copper Conductor – TB/T 3111

Send Inquiry

Contact Us

Related Products

AAAC – All Aluminum Alloy Conductor

AAC – All Aluminum Conductor

AACSR – Aluminum Alloy Conductor Steel Reinforced

AACSR/AC – Aluminum Alloy Conductor Aluminum Clad Steel Reinforced

ACAR – Aluminum Conductor Alloy Reinforced

ACS – Aluminum Clad Steel Conductor

ACSR – Aluminum Conductor Steel Reinforced

ACSR/AW – Aluminum Conductor Aluminum Clad Steel Reinforced

ACSS – Aluminum Conductor Steel Supported

ACSS/TW – Aluminum Conductor Steel Supported Trapezoidal Wire