Bare &Tinned Copper Wire-STRANDED BARE COPPER WIRE & TINNED COPPER WIRE

Applicaton of Bare &Tinned Copper Wire

*Earthing conductor for fixed installation in ground.

* Suitable for buried installation. Not allowed to use in overhead lines

* During the laying and handling operations, special care and measures shall be taken to avoid

torisional stresses on the conductor

- Minimum bending radius: 20 times the diameter of the bare conductor expressed in millimeters (mm)

- Pulling forces: (during laying operations)

Pulling forces applied to the conductor shall not exceed a value of

F=50 x S (Newton, N) where “S” is the cross-sectional area of the conductors (mm2) and 50 N/mm2 is

the permissible tensile stress with a maximun of 1500N.

* The product must not be exposed to constant tensile stresses

Functional properties of Bare &Tinned Copper Wire

Resistant to underground corrosion: This is a typical copper quality. The copper oxide patina (verdigris),

created on the surface layer by oxidation, acts as an insulator, preventing corrosion (on normal soils)

Easy to install: They are supplied as coils with an oversized winding core to avoid deformation and

facilitate installation.

About Bare &Tinned Copper Wire Construction

* Concentric-lay stranded

* The copper conductor is manufactured from an annealed copper wire.

* Popular Copper Strands 7, 19, 37or more wires.

Standards of Bare &Tinned Copper Wire

* IEC 60228-2 / EN 60228-2

* ASTM B3

* NF C 32-013

* Other National Standards can also be applied

Note:

The specification we provided are popular in conductor market, if you demand other conductor sizes, designs

 and/or specific installation requirements not shown in the table below, please contact RMJT Cable sales repr

esentative or e-mail admin@renmincable.com.cn, we will be happy to help.

Annealed Copper Conductor - IEC 60228-2

Size	No. of wire	Diameter of wires	Overall Diameter	Weight	Max. DC Resistance @20°C
mm2		mm	mm	kg/km	Ω/km
16	7	1,74	4,80	132	11500
25	7	2,14	6,00	214	0,7270
35	7	2,48	7,00	295	0,5240
50*	7	2,87	8,40	393	0,3870
70	19	2,14	10,70	595	0,2680
95	19	2,48	12,40	818	0,1930
95	37	1,80	12,60	818	0,1930
120*	19	2,80	14,00	1036	0,1530
120	37	2,03	14,21	1036	0,1530
150	37	2,23	15,61	1275	0,1240
185	37	2,48	17,36	1583	0,0991
240	37	2,87	20,09	2108	0,0754
300*	37	3,19	22,33	2627	0,0601

Annealed Copper Conductor - ASTM B3

Size	No. of wire	Diameter of wires	Overall Diameter	Area	Max. DC Resistance @20°C	Weight
AWG		mm	mm	(cmils)	Ω/km	kg/km
14	Solid	1.63	0.0641	4,110	2.57	12
12	Solid	2.05	0.0808	6,530	1.62	20
10	Solid	2.59	0.1019	10,380	1.019	31
8	Solid	3.26	0.1285	16,510	0.6407	50
6	Solid	4.12	0.162	26,240	0.4031	80
4	Solid	5.19	0.2043	41,740	0.2535	126
2	Solid	6.54	0.2576	66,360	0.1594	213
8	7	3.71	0.146	16,510	0.6408	51
6	7	4.67	0.184	26,240	0.403	81
4	7	5.89	0.232	41,740	0.253	129
3	7	6.6	0.26	52,620	0.201	162
2	7	7.42	0.292	66,360	0.159	205
1'	19	8.33	0.328	83,690	0.127	258
1/0'	19	9.14	0.36	105,600	0.1022	326
2/0'	19	10.26	0.404	133,100	0.0791	411
3/0¹	19	11.53	0.454	167,800	0.06274	518
4/0¹	19	12.95	0.51	211,600	0.0497	653
250	37	13.77	0.542	250,000	0.0421	772
300	37	15.09	0.594	300,000	0.0351	926
350	37	16.28	0.641	350,000	0.03	1,081
400	37	17.4	0.685	400,000	0.0263	1,235
500	37	19.46	0.766	500,000	0.021	1,544
600	61	22.68	0.893	600,000	0.01754	1,883
750	61	25.35	0.998	750,000	0.01436	2,316
1000	61	29.26	1.152	1,000,000	0.01059	3,088

Annealed Copper Conductor - NF C 32 - 013

Code	Area	No. of wire	Diameter of wires	Overall Diameter	Weight	Max. DC Resistance @20°C
mm2	(mm2)		mm	mm	kg/km	Ω/km
CUC 5.5	5.5	7	1	3.0	48.2	3.340
CUC 10.8	10.8	7	1.4	4.2	94.4	1.700
CUC 12.4	12.4	7	1.5	4.5	108	1.480
CUC 14.1	14.1	7	1.6	4.8	123	1.300
CUC 17.8	17.8	7	1.8	5.4	156	1.030
CUC 22.0	22	7	2	6.0	193	0.830
CUC 27.6	27.6	7	2.24	6.72	242	0.670
CUC 29.2	29.2	19	1.4	7.0	258	0.630
CUC 38.2	38.2	19	1.6	8.0	337	0.486
CUC 48.3	48.3	19	1.8	9.0	426	0.384
CUC 59.7	59.7	19	2	10.0	526	0.311
CUC 74.9	74.9	19	2.24	11.2	660	0.248
CUC 93.3	93.3	19	2.5	12.5	822	0.199