Polyurethane Enameled Copper Wire Suppliers, Manufacturers

Non-self-adhesive enameled wire size (R20)

Conductor nominal diameter / mm	Conductor tolerance / mm	Minimum film thickness / mm			Maximum outer diameter / mm
Conductor nominal diameter / mm	Conductor tolerance / mm	Level 1	Level 2	Level 3	Level 1	Level 2	Level 3
0.018	/	0.002	0.004	/	0.022	0.024	/
0.020		0.002	0.004		0.024	0.027
0.022		0.002	0.005		0.027	0.030
0.025		0.003	0.005		0.031	0.034
0.028		0.003	0.006		0.034	0.038
0.032		0.003	0.007		0.039	0.043
0.036		0.004	0.008		0.044	0.049
0.040		0.004	0.008		0.049	0.054
0.045		0.005	0.010		0.055	0.061
0.050		0.005	0.010		0.060	0.066
0.056		0.006	0.011		0.067	0.074
0.063		0.006	0.012		0.076	0.083
0.071	0.003	0.007	0.012	0.018	0.084	0.091	0.097
0.080	0.003	0.007	0.014	0.020	0.094	0.101	0.108
0.090	0.003	0.008	0.015	0.022	0.105	0.113	0.120
0.100	0.003	0.008	0.016	0.023	0.117	0.125	0.132
0.112	0.003	0.009	0.017	0.026	0.130	0.139	0.147
0.125	0.003	0.010	0.019	0.028	0.144	0.154	0.163
0.140	0.003	0.011	0.021	0.030	0.160	0.171	0.181
0.160	0.003	0.012	0.023	0.033	0.182	0.194	0.205
0.180	0.003	0.013	0.025	0.036	0.204	0.217	0.229
0.200	0.003	0.014	0.027	0.039	0.226	0.239	0.252
0.224	0.003	0.015	0.029	0.043	0.252	0.266	0.280
0.250	0.004	0.017	0.032	0.048	0.281	0.297	0.312
0.280	0.004	0.018	0.033	0.050	0.312	0.329	0.345
0.315	0.004	0.019	0.035	0.053	0.349	0.367	0.384
0.355	0.004	0.020	0.038	0.057	0.392	0.411	0.428
0.400	0.005	0.021	0.040	0.060	0.439	0.459	0.478
0.450	0.005	0.022	0.042	0.064	0.491	0.513	0.533
0.500	0.005	0.024	0.045	0.067	0.544	0.566	0.587
0.560	0.006	0.025	0.047	0.071	0.606	0.630	0.653
0.630	0.006	0.027	0.050	0.075	0.679	0.704	0.728
0.710	0.007	0.028	0.053	0.080	0.762	0.789	0.814
0.800	0.008	0.030	0.056	0.085	0.855	0.884	0.911
0.900	0.009	0.032	0.060	0.090	0.959	0.989	1.018
1.000	0.010	0.034	0.063	0.095	1.062	1.094	1.124
1.120	0.011	0.034	0.065	0.098	1.184	1.217	1.248
1.250	0.013	0.035	0.067	0.100	1.316	1.349	1.381
1.400	0.014	0.036	0.069	0.103	1.468	1.502	1.535
1.600	0.016	0.038	0.071	0.107	1.670	1.706	1.740
1.800	0.018	0.039	0.073	0.110	1.872	1.909	1.944
2.000	0.020	0.040	0.075	0.113	2.074	2.112	2.148
2.240	0.022	0.041	0.077	0.116	2.316	2.355	2.392
2.500	0.025	0.042	0.079	0.119	2.578	2.618	2.656
2.800	0.028	0.043	0.081	0.123	2.880	2.922	2.961
3.150	0.032	0.045	0.084	0.127	3.233	3.276	3.316
3.550	0.036	0.046	0.086	0.130	3.635	3.679	3.721
4.000	0.040	0.047	0.089	0.134	4.088	4.133	4.176
4.500	0.045	0.049	0.092	0.138	4.591	4.637	4.681
5.000	0.050	0.050	0.094	0.142	5.093	5.141	5.186
For the intermediate dimension of the conductor's nominal diameter, the minimum film thickness corresponding to the nominal diameter of the larger conductor shall be taken. Note 1: The minimum outer diameter of 0.063mm and below is calculated according to the conductor diameter + minimum film thickness measured in Table 3. Note 2: The intermediate dimensions of the nominal diameter of the conductors of the R40 series are shown in Appendix A.

Self-adhesive enameled wire size (R20)

Conductor nominal diameter / mm	Conductor tolerance soil/mm	Inner paint layer minimum and maximum / mm		Self-adhesive layer minimum thickness / mm	Maximum outer diameter / mm
Conductor nominal diameter / mm	Conductor tolerance soil/mm	Level 1B	Level 2B	Self-adhesive layer minimum thickness / mm	Level 1B	Level 2B
0.020	/	0.002	0.004	0.001	0.026	0.029
0.022		0.002	0.004	0.002	0.030	0.033
0.025		0.003	0.005	0.002	0.034	0.037
0.028		0.003	0.006	0.003	0.038	0.042
0.032		0.003	0.006	0.003	0.044	0.048
0.036		0.004	0.007	0.004	0.050	0.055
0.040		0.004	0.008	0.004	0.055	0.060
0.045		0.005	0.009	0.004	0.062	0.068
0.050		0.005	0.010	0.005	0.068	0.074
0.056		0.006	0.011	0.005	0.075	0.082
0.063		0.006	0.012	0.005	0.085	0.092
0.071	0.003	0.007	0.012	0.006	0.094	0.101

resistance

For enameled wires with conductor nominal diameters of 0.063 mm and below, the resistance at 20 °C shall be within the specified values in Table 3.
For enameled wires with a nominal conductor diameter of 0.063 mm or more, the resistance value is not specified.
After the negotiation between the supplier and the buyer, the enameled wire with a nominal diameter of 0.063mm or more and 1.000mm or less can be used for resistance measurement. In this case, the resistance at 20 °C should be within the range specified in Appendix C.

Conductor nominal diameter / mm	Resistance Ω/m		Conductor nominal diameter / mm	Resistance Ω/m
Conductor nominal diameter / mm	Minimum value	Maximum	Conductor nominal diameter / mm	Minimum value	Maximum
0.013	60.46	73.89	0.036	15.16	18.42
0.020	48.97	59.85	0.040	12.28	14.92
0.022	40.47	49.47	0.045	9.705	11.79
0.025	31.34	38.31	0.050	7.922	9.489
0.023	24.99	30.54	0.056	6.316	7.565
0.032	19.13	23.38	0.063	5.045	5.922
Note 1: The above specified values are calculated according to Appendix B. Note 2: See Appendix C for nominal resistance.

Elongation

The elongation at break shall not be less than the value specified in Table 4.
GB / T6109.1-2008 / IEC60317-0-1:2005

Conductor nominal diameter / mm	Minimum elongation / %	Conductor nominal diameter / mm	Minimum elongation / %	Conductor nominal diameter / mm	Minimum elongation / %
0.018	5	0.180	20	1.800	32
0.020	6	0.200	21	2.000	33
0.022	6	0.224	21	2.240	33
0.025	7	0.250	22	2.500	33
0.028	7	0.280	22	2.800	34
0.032	8	0.315	23	3.150	34
0.036	8	0.355	23	3.550	35
0.040	9	0.400	24	4.000	35
0.045	9	0.450	25	4.500	36
0.050	10	0.500	25	5.000	36
0.056	10	0.560	26	/	/
0.063	12	0.630	27
0.071	13	0.710	28
0.080	14	0.800	28
0.090	15	0.900	29
0.100	16	1.000	30
0.112	17	1.120	30
0.125	17	1.250	31
0.140	18	1.400	32
0.160	19	1.600	32
Note: For the intermediate dimension of the conductor's nominal diameter, the elongation value corresponding to the nominal diameter of the larger conductor shall be taken.

Resilience

When the conductor has a nominal diameter of 0.080 mm and above and 1.600 mm or less, the maximum rebound angle of the enameled wire shall not exceed the value specified in Table 5 when tested on a specified round bar with a specified load.
The maximum rebound angle of the enameled wire with a nominal conductor diameter of 1.600 mm or more shall not exceed 5 °.

Conductor nominal diameter / mm	Round rod diameter / mm	Load / N	Maximum rebound angle / (°)
Conductor nominal diameter / mm	Round rod diameter / mm	Load / N	Level 1	Level 2 and Level 1B	Level 3 and Level 2B
0.080	5	0.25	70	80	100
0.090			67	77	94
0.100			64	73	90
0.112	7	0.50	64	73	88
0.125			62	70	84
0.340			59	67	79
0.160	10	1.0	59	67	78
0.180			57	65	75
0.200			54	62	72
0.224	12.5	2.0	51	59	68
0.250			49	56	65
0.280			47	53	61
0.315	19	4.0	50	55	62
0.355			48	53	59
0.400			45	50	55
0.450	25	8.0	44	48	53
0.5C0			43	47	51
0.560			41	44	48
0.630	37.5	12.0	46	50	53
0.710			44	47	50
0.800			41	43	46
0.900	50	15.0	45	48	51
1.000			42	45	47
1.120			39	41	43
1.250			35	37	39
1.400			32	34	36
1.600			28	30	32
Note: For the intermediate dimension of the nominal diameter of the conductor, the value of the rebound angle corresponding to the nominal diameter of the larger conductor should be taken.

Flexibility and adhesion

Round bar winding test (conductor nominal diameter 1.600mm and below)
After the enameled wire is stretched as specified in Table 6 and wound on a suitable round bar, the paint layer shall not crack.

Round bar winding

Conductor nominal diameter / mm		Elongation before round bar winding / %	Round rod diameter / mm
the above	And below	Elongation before round bar winding / %	Round rod diameter / mm
-	0.050	20^a	0.150
0.050	0.063	15^a	0.150
0.063	0.080	10	0.150
0.080	0.112	5	0.150
0.112	0.140	0	0.150
0.140	1.600	0	d^b
^a Or stretch to the break point of copper, take a smaller value. d^b The nominal diameter of the conductor of the envelope wire.

Thermal shock

The paint layer with a nominal diameter of 1.600 mm and below shall not crack. The diameter of the round bar should meet the requirements of Table 7. The minimum hot stamping temperature is found in the relevant product standard.
After the conductor has a nominal diameter of 1.600 mm and a stretch of 25%, the paint layer should not crack. The minimum hot stamping temperature is found in the relevant product standard.

Conductor nominal diameter / mm	Round rod diameter / mm	Conductor nominal diameter / mm	Round rod diameter / mm
0.160	0.250	0. 500	1.120
0.180	0.280	0.560	1.250
0. 200	0.315	0.630	1.400
0. 224	0.355	0.710	1.600
0.250	0.400	0.800	1.800
0.280	0.630	0.900	2.000
0.315	0.710	1.000	2.240
0.355	0. 800	1.120	3.550
0.400	0.900	1.250	4.000
0.450	1.000	1.400	4.500
-	-	1.600	5.000

Softening breakdown see the requirements of the relevant product standards.
Resistant to the requirements of relevant product standards.
The solvent resistant standard solvent is tested with a pencil having a hardness of "H" and the paint layer should not be scratched.

Breakdown voltage

When tested at room temperature and high temperature (when required by the user), the enameled wire shall comply with the requirements of 13.1, 13.2 and 13.3, respectively. The temperature of the high temperature test can be found in the relevant product standard.
At least four of the five samples with a nominal conductor diameter of 0.100 mm and below shall not break down at voltages less than or equal to those specified in Table 8.

Conductor nominal diameter / mm	Minimum breakdown voltage (RMS) at room temperature / V
Conductor nominal diameter / mm	Level 1 and Level 1B	Level 2 and Level 2B	Level 3
0.018	110	225	-
0.020	120	250
0.022	130	275	-
0.025	150	300	-
0.028	170	325	-
0.032	190	375	-
0.036	225	425	-
0.040	250	475	-
0.045	275	550	-
0.050	300	600	-
0.056	325	650	-
0.063	375	700	-
0.071	425	700	1100
0.080	425	850	1200
0.090	500	900	1300
0.100	500	950	1400

At least four of the five conductors with a nominal diameter of 0.100 mm or more and 2.500 mm and below shall have no breakdown at voltages less than or equal to those specified in Table 9.

Breakdown voltage

Conductor nominal diameter / mm	Minimum breakdown voltage (effective value) / V
	Level 1 and Level 1B		Level 2 and Level 2B		Level 3
	Room temperature	high temperature	Room temperature	high temperature	Room temperature	high temperature
0.112	1300	1000	2700	2000	3900	2900
0.125	1500	1100	2800	2100	4100	3100
0.140	1600	1200	3000	2300	4200	3200
0.160	1700	1300	3200	2400	4400	3300
0.180	1700	1300	3300	2500	4700	3500
0.200	1800	1400	3500	2600	5100	3800
0.224	1900	1400	3700	2800	5200	3900
0.250	2100	1600	3900	2900	5500	4100
0.280	2200	1700	4000	3000	5800	4400
0.315	2200	1700	4100	3100	6100	4600
0.355	2300	1700	4300	3200	6400	4800
0.400	2300	1700	4400	3300	6600	5000
0.450	2300	1700	4400	3300	6800	5100
0.500	2400	1800	4600	3500	7000	5300
0.560	2500	1900	4600	3500	7100	5300
0.630	2600	2000	4800	3600	7100	5300
0.710	2600	2000	4800	3600	7200	5400
0.800	2600	2000	4900	3700	7400	5600
0.900	2700	2000	5000	3800	7600	5700
1.000the above 2.500And below	2700	2000	5000	3800	7600	5700
The conductor has a nominal diameter of 2.500mm or more At least four of the five samples should not break down at a voltage less than or equal to that specified in Table 10.

At least four of the five specimens with a conductor nominal diameter of 2.500 mm or more shall not break down at a voltage less than or equal to that specified in Table 10.

Breakdown voltage

Conductor nominal diameter / mm	Minimum breakdown voltage (effective value) / V
	Level 1 and Level 1B		Level 2 and Level 2B		Level 3
	Room temperature	high temperature	Room temperature	high temperature	Room temperature	high temperature
2.500以上	1300	1000	2500	1900	3800	2900

The number of pinholes per 30 m enameled wire for paint film continuity (conductor nominal diameter 1.600 mm and below) shall not exceed the values specified in Table 11.

Film continuity

Conductor nominal diameter / min		Maximum number of pinholes per 30m
the above	And below	Level 1 and Level 1B	Level 2 and Level 2B	Level 3
-	0.050	60	24	-
0.050	0.080	60	24	3
0.080	0.125	40	15	3
0.125	1.600	25	5	3

The temperature index test shall be carried out on IEC 60172 on unimpregnated enameled wire specimens with a nominal conductor diameter of 1.000 mm and a grade 2 film thickness.
The temperature index shall not be less than the specified value of the relevant product standard, and the failure time at the lowest test temperature shall be not less than 5000h. See the relevant product standards for refrigerant resistance.
Straight weldability can be found in the relevant product standards.
Thermal bonding is subject to the requirements of the relevant product standards.
See the relevant product standards for the dielectric loss factor. See the relevant product standards for transformer oil resistance.
See the relevant product standards for weight loss. The pinhole test can be found in the relevant product standards.
The type of packaging and packaging may affect certain properties of the enameled wire, such as resilience. Therefore, the type of packaging (such as the type of delivery reel) should be negotiated between the supplier and the purchaser to determine that the enameled wire should be wound evenly and tightly on the delivery reel or placed in the container. Unless there is agreement between the supplier and the buyer, there should be no more than one line of enameled wire in the delivery reel or container. When there is more than one line segment, the supplier and the buyer shall agree to mark the length of the line segment on the label and/or mark the package. When the enameled wire is delivered in a loop, the size and maximum weight of the loop shall be determined by the supplier and the buyer. Any additional protection on the coil

GB/T610.1-2008/IEC603170-1:2005
It should be decided by both parties.
The label shall be hung on each packaging unit agreed upon by the supplier and the buyer and shall include the following:
a. manufacturer's name and / or trademark; b. enameled wire and film type, such as product name and / or national standard number; enameled wire net weight d. enameled wire nominal diameter and film level; e. date of manufacture