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EN 60335-1 表3中 ZB,ZC,ZD 中有要求。# y, e% `& v" E4 J9 a
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.
" x4 I7 Y' a6 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.4 i! r- r2 |6 O7 g8 C% p# f
zd The temperature rise limit applies also for plastic material having a metal finish of thickness less than 0,1 mm.$ n3 {: M4 P+ w8 _8 \! }; N
7 e& E% Q8 q+ w& j6 ^3 y
of bare metal 504 h& \! `, B/ q- b
– of coated metal zc 60
7 L" G6 B6 W5 x& L6 u3 W– of glass and ceramic 65
7 B; `9 V. L/ A1 E% f– of plastic having a thickness exceeding 0,3 mm zd 75. y0 G# Z" s a9 _
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