电缆组件

AWG（American Wire Gauge）美国线规

TABLE 1 Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires at 20°C
Size	Diameter		Cross-Sectional Area		Size	Diameter		Cross-Sectional Area
AWG	mils	mm	cmils	mm²	AWG	mils	mm	cmils	mm²
4/0	460	11.68	211600	107.2	29	11.3	0.287	128	0.0647
3/0	409.6	10.4	167800	85.01	30	10	0.254	100	0.0507
3/0	364.8	9.266	133100	67.43	31	8.9	0.226	79.2	0.0401
1/0	324.9	8.252	105600	53.49	32	8	0.203	64	0.0324
1	289.3	7.348	83690	42.41	33	7.1	0.18	50.4	0.0255
2	257.6	6.543	66360	33.62	34	6.3	0.16	39.7	0.0201
3	229.4	5.827	52620	26.66	35	5.6	0.142	31.4	0.0159
4	204.3	5.189	41740	21.15	36	5	0.127	25	0.0127
5	181.9	4.62	33090	16.77	37	4.5	0.114	20.2	0.0103
6	162	4.115	26240	13.3	38	4	0.102	16	0.00811
7	144.3	3.665	20820	10.55	39	3.5	0.0889	12.2	0.00621
8	128.5	3.264	16510	8.367	40	3.1	0.0787	9.61	0.00487
9	114.4	2.906	13090	6.631	41	2.8	0.0711	7.84	0.00397
10	101.9	2.588	10380	5.261	42	2.5	0.0635	6.25	0.00317
11	90.7	2.304	8230	4.168	43	2.2	0.0559	4.84	0.00245
12	80.8	2.052	6530	3.308	44	2	0.0508	4	0.00203
13	72	1.829	5180	2.627	45	1.76	0.0447	3.1	0.00157
14	64.1	1.628	4110	2.082	46	1.57	0.0399	2.46	0.00125
15	57.1	1.45	3260	1.652	47	1.4	0.0356	1.96	0.000993
16	50.8	1.29	2580	1.308	48	1.24	0.0315	1.54	0.000779
17	45.3	1.151	2050	1.04	49	1.11	0.0282	1.23	0.000624
18	40.3	1.024	1620	0.823	50	0.99	0.0252	0.98	0.000497
19	35.9	0.912	1290	0.653	51	0.88	0.0224	0.774	0.000392
20	32	0.813	1020	0.519	52	0.78	0.0198	0.608	0.000308
21	28.5	0.724	812	0.412	53	0.7	0.0178	0.49	0.000248
22	25.3	0.643	640	0.324	54	0.62	0.0157	0.384	0.000195
23	22.6	0.574	511	0.259	55	0.55	0.014	0.302	0.000153
24	20.1	0.511	404	0.205	56	0.49	0.0124	0.24	0.000122
25	17.9	0.455	320	0.162
26	15.9	0.404	253	0.128
27	14.2	0.361	202	0.102
28	12.6	0.32	159	0.0804

AWG的标号越大，尺寸越小，示意图如下：