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|  DSH 381" X7 ^& J9 A- t8 S7 P! h/ c6 O
- f* T$ r* D6 O8 V0 ~1 r% c* K% t | Affect of adhesive on Comparative Tracking Index (CTI) of Insulating Tape2 G$ A2 [, D8 i; D$ }" h! f8 ]4 c
| 2.9.3, Table 6, Condition 24 m' R4 E, f0 @3 t
| 60950(ed.2) & 60950(ed.3)
/ \' c7 ^ A: M- J |
( R& @5 J4 B( l2 c1 ?/ j$ F$ DStandard:
, K" o! z/ v0 b; ]& H5 ~# A8 [1 n3 S1 {* I# IIEC60950, 2nd and 3rd
$ i/ R- ~# s9 m+ a( BSub clause:( L' x( ]" {- W" {$ ]9 m$ V
2.9.3, Table 6, Condition 28 k2 j/ G" m- ]' `9 r& r
Sheet n. 381' X$ n) g2 j3 g) B6 R3 I, z
Page 1 (1)
( C( u2 _3 d- `Subject:
* J1 x3 ~$ k9 E2 y- x5 X+ }Affect of adhesive on Comparative
) \" S& K1 X. T* q7 t" m# QTracking Index (CTI) of Insulating
* y; g; R& T: vTape
9 c/ d5 n8 j$ t$ CKey words:' S: g: i- I& F5 s6 ]
-comparative tracking index' u1 I8 w I5 u& G6 A+ `# M, ^5 J
-CTI' h# n2 ~& r3 W) q; c
-insulating tape2 u! a( k; g: ?/ V& A/ A* ?) B
-adhesive( s8 U# J4 `) L: a
Decision confirmed5 o. G0 I+ ?# Y4 J# s
at CTL 38th meeting4 t% `9 @) R2 o" P. l' o
Question:. l9 T; O$ @/ n( j" C
The measured Comparative Tracking Index (CTI) for an insulating tape with adhesive
# G3 `& D+ R1 Q6 e- spresent can be different from that for the insulating tape without the adhesive present. The( \; Q0 T- V" e9 d
creepage distances to be applied depend upon the CTI of the insulating material.5 R4 c) u" |$ K; u
Should the presence of adhesive on the insulating tape be considered in determining the CTI5 z& W8 q) Q# \. Y
when determining the creepage distances requirements to be applied?
0 a6 u! Q) x' \6 T& T DDecision:
. v: ~. W2 r4 R. E4 c9 JYes.
& r9 C! h) C' P* M2 e; H, F
& u' D: V) i& ?3 m. ^5 p
7 @- N; v' o; s! {% B. G# g5 K7 u2 c/ `( b; O5 l
- Q: n. f/ s$ J3 V3 W T, S Q1 L
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