|
|
看看这个定义可能有助于理解 SELV 为嘛要加basic,
* c3 I4 b" K3 H+ [2 v/ P. xsafety extra-low voltage. x3 h/ Y; ?5 ^/ p/ D+ h' l
voltage not exceeding 42 V between conductors and between conductors and earth or
: L% ] e* x% u! Cfunctional earth, the no-load voltage not exceeding 50 V。3 j, J* a- F( y
, _' W3 w4 a: E2 n5 g8.1.4 An accessible part is not considered to be live if:
! o4 m& k& d2 y3 e1 |4 h- f– the part is supplied at safety extra-low voltage, provided that
; k( s2 T8 s9 H- b+ H) \4 H! p- k• for AC, the peak value of the voltage does not exceed 42,4 V;
. I0 t" p" ]' w) U• for DC, the voltage does not exceed 42,4 V;0 l% k# X+ ~6 \" _6 X S
- \( L1 e# ~! S. B
: u; J: \! ]* R, E" W. G5 D |
|