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linrong0812 发表于 2012-8-28 19:03 
) O* d- G% |# a G* AUL 8750 7.10.50 A- Q7 ~$ r) u
Creepage distances shall not be less than clearances 说的是上面的意思? + Z2 r; M8 ^0 A8 Y; `) r. P) v
7.10.5 A eutectic material link or printed wiring board trace relied upon as an overcurrent protective$ v% B, f1 U1 x; e# ^* j
device shall be conformal coated or potted, and shall comply with the limited short circuit and foil trace
% T/ i5 R+ y9 s5 ycalibration tests specified in the Standard for Fluorescent-Lamp Ballasts, UL 935. |
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