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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
# r0 s: x, i P0 L6 ^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.
# @2 v9 S- U* H" t/ Ezc Metal is considered coated when a coating having a minimum thickness of 80 μm made by enamel or non substantially plastic coating is used.3 ]& A, ~, G1 S& l8 p9 t6 j- h
zd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.
" O" H- b- { t& R& S; } J! `$ \$ q4 z8 G, P4 ?3 L
of bare metal 50
s4 Z g1 J- Z! R – of coated metal zc 603 t, t. u9 o9 ^& J& o; q; o
– of glass and ceramic 65
8 c' M6 q1 o r- F– of plastic having a thickness exceeding 0,3 mm zd 75- ]! n6 `& t' }3 J
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