|
|
. j4 d+ H* J. A: H$ R5 n
7 e) D% \ g, V3 p* K0 n$ A
| Protection against Electric Shock, Table D 18
( O- _' ?. l. S) U | 6.7
/ |: g' x- ~4 C- u0 L | 61010-1(ed.1);am1;am21 G1 ~% \: ^2 C7 c3 ^6 l
|
# H4 v/ q, h, C( d$ p1 L' V* }" p8 w. C$ c$ `' K
Standard:& {7 \: X! C4 V* ?: E
IEC 61010-
. X5 T: _, u& q1:1990+A1:1992+A2:1995
. n+ c3 t& e3 I9 @9 \- m, wSub clause:) A6 Y$ ?: Q% X( m% F9 w
6.73 v/ Z3 @3 C( I! E$ x7 Y* i! c/ v
Sheet n. 3048 w* _7 h5 X/ V! g
Page 1(1)
0 J5 y" x e, Q0 VSubject:; s* @/ q. P' B& h$ ^
Protection against electric shock,
3 {7 N9 k: `# u; X$ R8 f9 F4 vTable D18
; W/ O1 }7 H4 ~3 ?0 x. Z) H& sKey words:! `4 I/ u9 R; i% J( \ F" n
Creepage
8 E4 K5 E' Y; pDecision taken by
B3 E, H- R$ m( f/ SETF3 and confirmed' t& X: R a+ C, G- }
by CTL at its 38th
" S# @& q% X/ E9 q) ]" ~meeting, in Toronto- h4 J) b+ \- u! V b
Question:0 @# a3 T& p- U* p/ N
What creepages apply when voltages in excess of 1000V are present on printed wiring
+ ?1 A5 w3 e: ^/ x) cboards?
9 K, D Q6 W3 G* j7 j! ^( Y: zDecision:: ?) `" q2 K6 X
Use the following columns:
. P3 y4 l3 D7 u9 |/ w) `" u" bFor pollution degree 1 use “Other material”
6 X" Z: V5 ?4 m, pFor pollution degree 2 use CTI>600
( C$ V0 s2 R2 S6 E( @2 @. C$ s; OExplanation:" t6 ^. Z; l: A* M' O
IEC 60664 Fig. 1 gives the source of these distances and shows that the values are as given
, |( t) d4 a3 {6 v0 iabove.
$ X7 R! z* S( M: @5 P H! H7 q, A6 ]/ h o
x, c5 J$ R* y+ n$ o
9 t" [) a+ s9 S8 j! ^; b. i6 k |
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发表于 2012-9-19 14:59
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