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Bare Copper Stranded Conductor ( BCC )

Category:
Bare ConductorTag: Stranded bare copper conductor
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Product Description

Bare Copper Stranded Conductor ( BCC )

Overhead transmission Bare Copper Conductor

Bare Stranded Hard-Drawn Copper Conductors Application

Stranded Class 2 bare copper wire to BS EN 60228 / IEC 60228 cables are non insulated and non sheathed soft drawn copper to BS6360/81. Stranded bare soft or annealed copper conductors are recommended for use as neutrals, in circuit ground connections as well as machinery and equipment grounding systems. Soft copper may be used for transformer drop leads or other non-tension hook-up jumpers.
Solid and stranded (classes AA and A) bare copper are suitable for overhead transmission and distribution applications. Stranded conductor of greater flexibility (classes B and C) are suitable for uninsulated hook up, jumpers, and grounds in electrical construction. Soft Drawn copper is unilay construction.

Bare Stranded Hard-Drawn Copper Conductors Standards

· BS 6360 and BS EN 60228 / IEC 60228

· ASTM B-1 Hard-Drawn Copper Wire.

· ASTM B-2 Medium-Hard Copper Wire.

· ASTM B-3 Soft or Annealed Copper Wire.

· ASTM B-787 19 Wire Combination Unilay-Stranded Soft copper wire.

· ASTM B-8 Concentric-Lay-Stranded Hard, Medium-Hard or Soft Copper Conductor.

Bare Stranded Hard-Drawn Copper Conductors Construction

Bare copper, solid or stranded. Available in tempers hard, medium-hard, or soft. Stranded conductors are concentrically stranded in hard and medium-hard tempers and are Combination Unilay stranded in the soft-drawn temper.

Bare Stranded Hard-Drawn Copper Conductors Characteristics

Stranded bare soft or annealed copper conductors are suitable for direct burial and do not suffer from the inherent corrosion problems that an aluminum conductor would. Copper is almost twice as conductive as aluminum. Copper is easier than aluminum to terminate and join at splices and joints.

Size AWG or MCM or KCMIl	Actual cross-sectional area mm2	Number of single wire	Diameter of single wire mm	Nominal Overall Diameter mm	Approximate weight kg/km	Current Rating A
10	5.3	7	0.98	3.27	48	50
8	8.3	7	1.23	3.69	76	95
6	13.4	7	1.56	4.68	121	130
4	21.1	7	1.96	5.88	192	170
3	26.6	7	2.2	6.6	242	200
2	33.5	7	2.47	7.41	305	230
1	42.5	7	2.78	8.34	384	265
1/0	53.5	7	3.12	9.35	485	310
1/0	54.4	19	1.91	9.47	485	310
2/0	67.7	7	3.51	10.52	611	355
2/0	67.7	19	2.13	10.62	611	355
3/0	85.3	7	3.94	11.79	771	410
3/0	85.2	19	2.39	11.94	771	410
4/0	107.4	7	4.42	13.26	972	480
4/0	108	19	2.69	13.41	972	480
250	127.2	19	2.92	14.58	1149	530
250	125.7	37	2.08	14.61	1149	530
300	152.8	19	3.2	15.95	1378	590
300	152.4	37	2.29	16	1378	590
350	177.6	19	3.45	17.25	1609	650
350	175.9	37	2.46	17.3	1609	650
400	203.2	19	3.69	18.42	1838	—
400	202.5	37	2.64	18.49	1838	—
500	252.9	37	2.95	20.68	2297	810
600	303.2	37	3.23	22.63	2757	910
381750	381	61	2.82	25.35	3446	1040
5061000	506	61	3.25	29.26	4595	1240
6311250	631.3	61	3.63	32.84	5742	1451
6221250	622	91	2.95	32.74	5742	1430
7591500	758.9	61	3.98	35.84	6891	1669
7551500	754.9	91	3.25	35.86	6891	1669

Nominal cross-sectional area mm2	No./Diameter of single wire mm	Nominal overall diameter mm	Approximate weight of cable kg/km	Nominal Breaking Load Kn	Maximum DC Resistance at 20℃ Ω/km
10	7/1.35	4.05	90	4.292	1.8054
16	7/1.70	5.1	125	6.801	1.1385
25	7/2.14	6.42	160	10.545	0.7185
35	7/2.52	7.56	200	14.298	0.5181
50	7/3.02	9.06	250	20.531	0.3589
50	19/1.78	8.9	250	19.806	0.3825
70	19/2.14	10.7	310	28.626	0.2646
95	19/2.52	12.6	380	38.818	0.1918
120	19/2.85	14.25	440	49.657	0.1492
150	37/2.25	15.75	510	61.632	0.1238
185	37/2.52	17.64	585	75.587	0.0981
240	61/2.25	20.25	700	101.616	0.0752
300	61/2.52	22.68	800	124.627	0.06
400	61/2.85	25.65	960	159.407	0.0469
500	61/3.20	28.8	1110	200.959	0.037