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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
6 J; |0 N/ I9 s5 ^ V$ x9 ozb When the thickness of plastic coating does not exceed 0,3 mm, the temperature rise limits of coated metal or glass and ceramic apply.9 l' o5 q- G5 ~
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 b& g/ |. I0 @zd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.
6 {& S( I* p6 ]7 \$ p% Q! v4 j6 `5 k; I
of bare metal 50
- d5 g3 z7 h$ j6 O% B m – of coated metal zc 60
6 a/ G' ?* L( `– of glass and ceramic 65
! J+ v5 |$ ?& Z x0 V. N! }' A– of plastic having a thickness exceeding 0,3 mm zd 75
$ U& y5 d; Y+ N) b+ o. k# } |
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