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在60335-1标准里面就有这样的语句:
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7.3 Appliances having a range of rated values and which can be operated without# Q: F7 c3 K5 a0 d5 F7 ^) [
adjustment throughout the range shall be marked with the lower and upper limits of the range- a2 K- D, }+ A- T, b; ?: C
separated by a hyphen.8 S4 D% a& }% y6 X( G4 H# h" z( T
NOTE 1 Example: 115-230 V: The appliance is suitable for any value within the marked range (a curling iron with, g3 I8 n2 w0 X+ g0 t4 C+ c
a PTC heating element). |
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