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引用标准:5 G1 q; e0 A, g# X! m( K, I7 F
3.3
8 [- m, D7 D6 x& U3.3.1; D3 o9 K) v- s6 l
basic insulation
& G( J. g l; F. A9 w8 [insulation applied to live parts to provide basic protection against electric shock
1 S/ s! q2 y: \! s% {3.3.2" x8 z4 D) S" V0 ]4 @0 R8 M4 z8 |- C
supplementary insulation
' K: E; m! c- h2 q9 ?independent insulation applied in addition to basic insulation, in order to provide protection
6 ^# u/ p4 u, y. h6 [against electric shock in the event of a failure of basic insulation
# Z u; M; c: r3.3.3
" s/ M8 O9 m# V# A/ [ Tdouble insulation6 o: Y& h4 P' A O1 n
insulation system comprising both basic insulation and supplementary insulation
" o% R$ ^7 e4 i1 w" t& _8 v7 A3.3.45 r5 Z o6 x) p, _* X! g; x* x
reinforced insulation$ O' v$ U! ^: T) a
single insulation applied to live parts, that provides a degree of protection against electric
9 ^* l: c3 j2 t3 Yshock equivalent to double insulation under the conditions specified in this standard
& }- @) @! w$ j( MNOTE It is not implied that the insulation is one homogeneous piece. The insulation may comprise several layers
# B# j' Y$ Q5 N. h% k2 A$ zwhich cannot be tested singly as supplementary insulation or basic insulation. |
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