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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
, F [ {9 ~) `: ?zb When the thickness of plastic coating does not exceed 0,3 mm, the temperature rise limits of coated metal or glass and ceramic apply.
$ g( F' | P6 ?8 ]9 k4 Fzc Metal is considered coated when a coating having a minimum thickness of 80 μm made by enamel or non substantially plastic coating is used.9 N' g6 j% @& W) ?' V
zd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.
* X% I! f2 j8 z* A8 ^9 Z/ }9 v/ t1 G2 k) @0 i7 V
of bare metal 50 ?- Q7 ]9 M" I+ l9 h0 b
– of coated metal zc 608 f% x1 X: u% n
– of glass and ceramic 65% B# s/ o# \( n$ U4 z; Y
– of plastic having a thickness exceeding 0,3 mm zd 75
) k5 ]* `5 s- c% U2 n |
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