BARE HARD-DRAWN COPPER CONDUCTOR

LS Cable & System overhead wire is composed of ACSR and overhead ground wire. They are normally installed on steel towers, and recently the usage of high-capacity conductors for high-capacity transmission among power cables is increasing

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Construction

Bare stranded hard-drawn copper conductor is a concentric-lay-stranded conductor consisting of hard drawn copper wires available in both single layer and multi-layer constructions.

Standard

Bare stranded hard-drawn copper conductor can be supplied to meet various National Standards as follows :

TCVN 5064:1994, SD 1995

BS 7884

DIN 48201/1

AS 1746

However, LS VINA Cable & System can also supply a range of alternative designs to meet customer-specified requirements.

TCVN 5064:1994, SĐ 1995

Nominal Cross-section area	Construction	Calculated Cross-section area	Approx. Overall diameter	Approx. Overall weight	Maximum DC resistance at 20^oC	Minimum breaking load
mm²	No. x mm	mm²	mm	kg/km	Ω/km	N
16	7 x 1.70	15.9	5.10	142.66	1.1573	6,031
25	7 x 2.13	24.9	6.39	223.96	0.7336	9,463
35	7 x 2.51	34.6	7.53	311.00	0.5238	13,141
50	7 x 3.00	49.4	9.00	444.28	0.3688	17,455
70	19 x 2.13	67.7	10.65	610.90	0.2723	27,115
95	19 x 2.51	94.6	12.55	848.32	0.1944	37,637
120	19 x 2.80	117.0	14.00	1055.67	0.1560	46,845
150	19 x 3.15	148.0	15.75	1336.08	0.1238	55,151
185	37 x 2.51	183.0	17.57	1660.13	0.1001	73,303
240	37 x 2.84	234.0	19.88	2125.35	0.0789	93,837
300	37 x 3.15	288.0	22.05	2614.66	0.0637	107,422
400	37 x 3.66	389.0	25.62	3529.85	0.0471	144,988

BS 7884-1997

Nominal Cross-section area	Construction	Calculated Cross-section area	Approx. Overall diameter	Approx. Overall weight	Maximum DC resistance at 20^oC	Minimum breaking load
mm²	No. x mm	mm²	mm	kg/km	Ω/km	N
10	7 x 1.35	10.02	4.05	89.8	1.82900	3,752
14	7 x 1.60	14.07	4.80	126.2	1.30300	5,267
16	3 x 2.65	16.55	5.70	148.3	1.10600	6,194
16	7 x 1.70	15.89	5.10	142.4	1.15400	5,946
25	7 x 2.10	24.25	6.30	217.3	0.75630	9,073
32	3 x 3.75	33.13	8.06	296.9	0.55200	12,400
32	7 x 2.46	33.27	7.38	298.2	0.54970	12,442
35	7 x 2.50	34.36	7.50	308.0	0.53370	12,860
50	7 x 3.00	49.48	9.00	443.5	0.37060	18,520
50	19 x 1.80	48.35	9.00	435.8	0.38190	17,700
70	7 x 3.55	69.29	10.65	621.1	0.26460	25,930
70	19 x 2.10	65.81	10.50	593.2	0.28060	24,090
95	19 x 2.50	93.27	12.50	840.7	0.19800	34,140
100	7 x 4.30	101.65	12.90	911.2	0.18100	36,540
120	19 x 2.80	116.99	14.00	1,055	0.15780	42,830
125	19 x 2.90	125.50	14.50	1,131	0.14710	45,940
150	19 x 3.20	152.81	16.00	1,377	0.12080	55,940
150	37 x 2.25	147.11	15.75	1,334	0.12640	53,880
185	19 x 3.55	188.06	17.75	1,695	0.09815	68,860
185	37 x 2.50	181.62	17.50	1,647	0.10240	66,490

DIN 48201/1

Nominal Cross-section	Construction	Calculation cross-section	Approx.Overall diameter	Approx.Overall weight	Minimum breaking load	Current carrying Capacity(*)
mm²	No. x mm	mm²	mm	kg/km	kN	A
10	7 x 1.35	10.02	4.05	90	4.02	90
16	7 x 1.70	15.89	5.10	143	6.37	125
25	7 x 2.10	24.25	6.30	218	9.72	160
35	7 x 2.50	34.36	7.50	310	13.77	200
50	7 x 3.00	49.48	9.00	446	19.84	250
50	19 x 1.80	48.35	9.00	437	19.38	250
70	19 x 2.10	65.81	10.50	596	26.38	310
95	19 x 2.50	93.27	12.50	845	37.39	380
120	19 x 2.80	116.99	14.00	1,060	46.90	440
150	37 x 2.25	147.11	15.80	1,337	58.98	510
185	37 x 2.50	181.62	17.50	1,649	72.81	585
240	61 x 2.25	242.54	20.30	2,209	97.23	700
300	61 x 2.50	299.43	22.50	2,725	120.04	800
400	61 x 2.89	400.14	26.00	3,640	160.42	960
500	61 x 3.23	499.83	29.10	4,545	200.38	1,110

(*) Guideline values of current carrying capacity are valid up to a frequency of 60Hz, assuming a wind velocity of 0,6m/s,the ambient temperature of 35^oC and a conductor temperature of 70^oC.

For special applications, when there is no air turbulence, the values should be reduced by 30%.

AS 1746 - Standard

Construction	Calculated Cross-section area	Approx. Overall diameter	Approx. Overall weight	Maximum DC resistance at 20^oC	Minimum breaking load	Equivalent Aluminum area
No. x mm	mm²	mm	kg/km	Ω/km	N	mm2
7 x 1.00	5.498	3.00	49.3	3.250	2.32	8.68
7 x 1.25	8.589	3.75	76.9	2.090	3.59	13.6
7 x 1.75	16.84	5.25	151	1.060	6.89	26.6
7 x 2.00	21.99	6.00	197	0.815	8.89	34.7
7 x 2.75	41.58	8.25	375	0.433	16.2	65.3
19 x 1.75	45.70	8.75	413	0.395	18.3	71.7
19 x 2.00	59.70	10.00	538	0.303	23.6	93.6
7 x 3.50	67.35	10.50	607	0.268	25.4	106
7 x 3.75	77.28	11.25	696	0.233	28.8	121
37 x 1.75	88.99	12.25	806	0.203	35.6	139
19 x 2.75	112.9	13.75	1,020	0.160	43.1	177
19 x 3.00	134.3	15.00	1,210	0.134	50.8	211
37 x 2.50	181.6	17.50	1,640	0.0996	70.3	284
37 x 2.75	219.8	19.25	1,990	0.0823	83.9	344
37 x 3.00	261.6	21	2,370	0.0691	98.9	409
61 x 2.75	362.3	24.75	3,290	0.05	138	566