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1.2.4.2. z! q" f: ?8 G" K; A
CLASS II EQUIPMENT
" P! ~; H# k) z1 lequipment in which protection against electric shock does not rely on BASIC INSULATION only,
# ?& u$ \. ~4 e7 s' ?$ ?3 nbut in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED& ?1 r2 a& s7 _8 U& j
INSULATION are provided, there being no reliance on protective earthing* j4 P" `1 S* D$ u
1.2.4.3, ?/ U+ L' G+ e) |) t
CLASS III EQUIPMENT% i5 G7 P) ^2 x1 b% f
equipment in which protection against electric shock relies upon supply from SELV CIRCUITS
! X1 ]; T: ` C( z: Nand in which HAZARDOUS VOLTAGES are not generated7 l/ {3 Q9 E- w' ^( g
NOTE For CLASS III EQUIPMENT, although there is no requirement for protection against electric shock, all other
\2 `, h( \5 r7 k5 brequirements of the standard apply.* _+ i/ a, a, L4 {
根据这个定义,有可能是二类,也有可能是三类,取决于你供电是TNV还是SELV了。 |
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