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根据EN60950-1:2006的定义% b3 t7 ^: b B6 r- y3 \5 G5 [
CLASS I EQUIPMENT/ f3 \/ K9 y8 ?; R @
equipment where protection against electric shock is achieved by
: ]* M2 I, I8 P− using BASIC INSULATION and- |( v1 Z& N6 k+ v( f
− providing a means of connection to the PROTECTIVE EARTHING CONDUCTOR in the building6 M( H# s |0 {/ t% O4 j
wiring those conductive parts that are otherwise capable of assuming HAZARDOUS! m( G- _1 @( \% P6 M' u9 ]
VOLTAGES if the BASIC INSULATION fails
) A7 q6 x9 F3 s0 i! x3 ]: XNOTE CLASS I EQUIPMENT may have parts with DOUBLE INSULATION or REINFORCED INSULATION.
# _' s2 D; B" S1.2.4.2
) Z4 r" H7 d+ d7 X$ @* c( j& W6 Z. fCLASS II EQUIPMENT
/ b( y1 n) V1 y+ b# D; Pequipment in which protection against electric shock does not rely on BASIC INSULATION only, x/ t* O* A! i* t6 E& y# c
but in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED
0 b4 @, o! |& YINSULATION are provided, there being no reliance on protective earthing |
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