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1. How to confirm the yellow line can not over 30%.

1.     How to confirm the yellow line can not over 30%.

RENRB 13249/IEC 60227標準要求應該是黃色或綠色不能少於30%。有關要求參考IEC 60173應該能找到答案,但我沒有這個標準。測量方法應該不難,可以先在各黃/綠連接處做一標記,再放在投影儀等上觀察,通過測量和計算方式可得出。

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