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linrong0812 发表于 2012-8-28 19:03
/ ?& c; ^9 t2 H/ n$ J! _UL 8750 7.10.5& p: v8 K! t1 Y
Creepage distances shall not be less than clearances 说的是上面的意思? - J* O. r7 v6 }/ x7 Z
7.10.5 A eutectic material link or printed wiring board trace relied upon as an overcurrent protective
' B* | D0 @8 [, v* h8 B4 Ldevice shall be conformal coated or potted, and shall comply with the limited short circuit and foil trace
: N9 h1 M; p' r6 G& `calibration tests specified in the Standard for Fluorescent-Lamp Ballasts, UL 935. |
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