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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
1 `1 @) {% ~+ }7 @; [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.# R* r$ r- }6 V/ d/ l3 X
zc Metal is considered coated when a coating having a minimum thickness of 80 μm made by enamel or non substantially plastic coating is used.
5 g* n# u; j, \" o3 l! Ozd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.
& R1 C$ O" ]4 @2 h+ o- m: X7 D( O6 d* x4 A
of bare metal 50" z1 }& f3 U. V0 e$ e
– of coated metal zc 601 M7 ~( F7 O6 L. W* Y
– of glass and ceramic 65
* n# v E( @. r: P7 Z/ E" |. f– of plastic having a thickness exceeding 0,3 mm zd 75
3 g! w" ^% Y' A) U |
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