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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。
9 }' ?# @8 I; r" k0 B4 {1 m$ I6 Azb 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 v6 c0 T) w6 D$ M5 L1 p
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.% R* q4 W0 @/ s# P, {; P9 F9 V4 F
zd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.+ t/ v s! S0 p/ R
+ J/ q3 D8 c/ t0 i; r3 e7 Wof bare metal 50- P1 ?+ W v& I0 U; X
– of coated metal zc 60
3 a' ]! K* X H- T– of glass and ceramic 65# T% ]8 ?" r6 m! A7 c+ N7 q& d
– of plastic having a thickness exceeding 0,3 mm zd 75/ ^( o( I$ Q" U8 q
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