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|  DSH 381
& {3 U. o [6 d4 |% _
4 n2 H# b% W8 T% R T | Affect of adhesive on Comparative Tracking Index (CTI) of Insulating Tape6 e, V# `6 Q; k; d" |' g0 n6 y
| 2.9.3, Table 6, Condition 2. @! T& g& M1 e2 L
| 60950(ed.2) & 60950(ed.3)) s, y8 S) g4 Q4 y4 k/ x
|
3 \, [8 C! N8 A6 c$ G
Standard:. N$ F% n1 Z. |) Z" {9 l
IEC60950, 2nd and 3rd
% j4 p$ n3 A4 U2 \8 n9 @Sub clause:
5 D a+ b% x! i2.9.3, Table 6, Condition 2; ?2 c/ y* l! `, c
Sheet n. 381
+ Z0 a5 n8 d8 O5 f. DPage 1 (1)
- r! K; s% m* j6 @2 e0 \Subject:
/ z( w; G$ O7 s, g9 C" @Affect of adhesive on Comparative, I7 U) I4 L! b
Tracking Index (CTI) of Insulating1 P3 D6 c! i: k* _4 v! v
Tape% j5 |% @, K2 a9 j2 f: }8 M
Key words:
. n/ T0 Z: ?3 \9 L-comparative tracking index9 r% U5 B5 c; B4 o1 B* S2 J
-CTI
) m2 i' I m8 B2 R+ l& z) |-insulating tape$ P+ k6 ^2 y3 s$ z3 ~* l
-adhesive: ]8 H1 ?5 f6 E6 u# t1 q" L
Decision confirmed7 }& G- L9 ^: I2 a$ E; p
at CTL 38th meeting. o# G: t) L+ H: R' o4 L
Question:% [/ b0 i- K4 i
The measured Comparative Tracking Index (CTI) for an insulating tape with adhesive, X2 K: e! Z8 K) V
present can be different from that for the insulating tape without the adhesive present. The4 [; p7 N- `1 `" {
creepage distances to be applied depend upon the CTI of the insulating material.( S" J i9 R! n' g# X# L" l
Should the presence of adhesive on the insulating tape be considered in determining the CTI
+ R6 M) a" _' c! C5 t+ Z0 Zwhen determining the creepage distances requirements to be applied?- q( r& k6 X5 W) X, J9 d" n7 u
Decision:) }/ u" a9 k8 x) z9 F0 N$ j
Yes.
+ h2 T% m* h# E. i% Q6 M4 P2 O) Y% G/ Z+ [: [- F6 m+ x# s
( {4 H, R ?/ R6 W N" O
5 @. B8 J! N) K: ~- C' b
# l* D4 h. ~' I% `- L9 [# Y |
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发表于 2012-11-6 17:37
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