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根据EN60950-1:2006的定义
4 C, J) D( x6 g C1 kCLASS I EQUIPMENT
: U+ ?& l8 @/ }6 O6 x' requipment where protection against electric shock is achieved by
: E# z3 u& S! y) N; ~− using BASIC INSULATION and
$ w0 b: R# g9 P− providing a means of connection to the PROTECTIVE EARTHING CONDUCTOR in the building
" F& }* r- s- j6 P0 Gwiring those conductive parts that are otherwise capable of assuming HAZARDOUS2 j# I: ^3 o7 J! y" m
VOLTAGES if the BASIC INSULATION fails: V7 B! Y- H& v; n7 `+ o
NOTE CLASS I EQUIPMENT may have parts with DOUBLE INSULATION or REINFORCED INSULATION.- y+ u; `8 F8 q& P
1.2.4.2# m3 o, f4 K; ?5 ]
CLASS II EQUIPMENT( v6 y4 K: i6 X, I3 ?+ E
equipment in which protection against electric shock does not rely on BASIC INSULATION only,
6 |; W1 w7 I; k0 wbut in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED
. d$ \; {+ [4 D; _INSULATION are provided, there being no reliance on protective earthing |
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