配電盤銅排及線徑使用標準

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依據標準：電工法規

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額定電流	最小線徑(mm2)	銅匯流排最小尺寸(mm×mm)
0-20	3.5	12 × 1
30	5.5	12 × 1
40	8	12 × 1
50,60	14	15 × 2 or 12 × 2
70,75	22	15 × 2 or 12 × 2
90,100	38	15 × 2 or 12 × 2
125	50	20 × 3
150,175	60	20 × 3
200	80	20 × 3
225	100	20 × 5
250,275	125	30 × 5
300	150 or 50 × 2	30 × 5
350	200 or 60 × 2	30 × 5
400	250 or 80 × 2	40 × 5
500	325 or 125 × 2	30 × 10
600	150 × 2	50 × 6t or 40 × 10
700,800	125 × 3	50 × 10t
1000	150 × 3	60 × 10t
1250	200 × 3	80 × 10t
1600	200 × 4	100 ×10t
2000		2 × 80 × 10t
2500		2 × 100 × 10t
3000		2 × 120 × 10t
4000		3 × 120 × 10t
5000		3 × 150 × 10t