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1.2.4.2( B2 m& r! ?0 A( N- g
CLASS II EQUIPMENT
* T' {! E9 s1 aequipment in which protection against electric shock does not rely on BASIC INSULATION only,* ?2 P" h) q: @2 P3 I9 O) `3 T3 ?
but in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED
z! R9 t; x+ H3 n2 g( HINSULATION are provided, there being no reliance on protective earthing
; b* _+ V# R4 C0 O1.2.4.3/ S. e! \2 d5 ^9 l
CLASS III EQUIPMENT
4 m; S+ _( e2 q j5 v' gequipment in which protection against electric shock relies upon supply from SELV CIRCUITS7 X: Y6 z1 X- V) e* M3 E2 D! p
and in which HAZARDOUS VOLTAGES are not generated/ w% @. K$ f" z% a+ v- I, F: ?
NOTE For CLASS III EQUIPMENT, although there is no requirement for protection against electric shock, all other
+ P! p8 R9 S2 y; t: E/ i6 Erequirements of the standard apply.
% y% z( o, B2 H5 `! Y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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