|
|
; E. p- ~* p3 d* k. `5 B# V: W7 S' j
' W* }, H) n C4 Q
| Protection against Electric Shock, Table D 18" n- h1 e+ J3 t" h% M% z
| 6.7' }5 x5 a h# R6 U
| 61010-1(ed.1);am1;am2
1 n( J1 B9 R, H: H9 p$ a$ l |
( M9 ^( X6 L: w6 B; t% U- i
5 q9 J; R+ ^; w5 |, u0 vStandard:
6 L4 e0 Z8 J( K* ]6 W* q1 `IEC 61010-! C1 f" u Q7 [) S" Z9 W- X5 e+ v1 q$ V
1:1990+A1:1992+A2:1995
0 Y _/ k5 Q3 nSub clause:
! t& u8 e9 \4 p9 ~3 O6.7/ b `! ^1 p5 p2 {9 w- ?, l
Sheet n. 304
: R5 T! e. H7 X5 e/ O9 ]Page 1(1)
7 S q% j( X0 X' t. p! f* HSubject:% r7 y; Q0 u. ]$ b
Protection against electric shock,# H8 I A1 \0 n' K0 s
Table D18- @6 V1 x8 d* { G! Z2 |* r( p
Key words:! q$ y$ s0 x4 l2 r
Creepage
4 Z+ l3 H4 P8 \8 F( pDecision taken by
, w3 s! J6 T7 q5 D+ yETF3 and confirmed- N: u8 H2 l, {) I$ ?9 ]2 A
by CTL at its 38th$ F" ~% g: @8 e7 Y1 x
meeting, in Toronto
' {8 R0 M& N% k( H: g9 a( sQuestion:
& ~ s' Y# K$ a! ?/ V: E$ lWhat creepages apply when voltages in excess of 1000V are present on printed wiring' H; U) b m- i, n! a
boards?7 V- H5 n( | L5 j4 r! S1 }
Decision:* Z# I! }) b3 X5 N; Z* q
Use the following columns:
. j& J2 o x$ q3 M) x: w7 x0 ]3 ZFor pollution degree 1 use “Other material”
" ?( X, {, \/ r/ C5 v$ }6 n# q& XFor pollution degree 2 use CTI>600+ @* m$ ?7 [& y/ H6 a9 ?
Explanation:6 b7 f& R$ [5 c! P3 g7 a
IEC 60664 Fig. 1 gives the source of these distances and shows that the values are as given1 n: x3 u2 I7 X4 Y, [( E# b$ O
above.0 ?! T6 [4 h. {% z, j
. y- E4 o6 ~2 N: C6 H1 ^% y
# J, l# r# F/ t" X
1 w; Z7 [5 k" G9 D% R; L |
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发表于 2012-9-19 14:59
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