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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
6 r3 l8 l( f' k5 A7 h! q4 i8 Dzb When the thickness of plastic coating does not exceed 0,3 mm, the temperature rise limits of coated metal or glass and ceramic apply., Y/ B4 I8 G! k# n
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.
" X) h3 q6 Y: xzd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.
" T% H/ J9 A) ~: B- u
7 f! V9 M" l# L- D' S% ^: G6 ~of bare metal 50 e0 [7 U. l8 B. V+ s1 v0 l
– of coated metal zc 60' b% |% }1 u. ] C7 o
– of glass and ceramic 65
, C" T% H& d5 e# q– of plastic having a thickness exceeding 0,3 mm zd 75; C i1 S: L+ |# \; M, t: V
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