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linrong0812 发表于 2012-8-28 19:03 6 K. `, W5 P6 D. l3 [
UL 8750 7.10.5$ R" `. }4 x' `
Creepage distances shall not be less than clearances 说的是上面的意思? % @! G6 x* D1 ^. H) \9 d- T
7.10.5 A eutectic material link or printed wiring board trace relied upon as an overcurrent protective* e0 K2 n5 k& Y& {$ H9 K' P+ ^* `" ]' g
device shall be conformal coated or potted, and shall comply with the limited short circuit and foil trace( d; r+ J* @! D: @
calibration tests specified in the Standard for Fluorescent-Lamp Ballasts, UL 935. |
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