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|  DSH 381" c# i+ u/ |2 B' P" c, G% X' g
* `1 L5 J; R7 u# d) f8 ~' ~
| Affect of adhesive on Comparative Tracking Index (CTI) of Insulating Tape
8 P& V" c- a. |% o; y | 2.9.3, Table 6, Condition 2* N( M: H0 B0 b4 q
| 60950(ed.2) & 60950(ed.3)
- w; L# x- e1 \8 t |
9 i4 V/ z, k# V: `1 p- ~3 M7 V ZStandard:- p; V n3 `8 w
IEC60950, 2nd and 3rd
9 r. F2 l! _" x' Y) BSub clause: A9 u& c9 _8 h0 ]1 H) r& K
2.9.3, Table 6, Condition 2
' a& h5 I; P, W( E5 s: fSheet n. 381+ N$ a% B2 R, Z" _. Y
Page 1 (1)
, }3 d8 k1 l& q N- Y. Z) N1 J& eSubject:
$ N. A1 m1 ~( H9 U* BAffect of adhesive on Comparative/ Z/ U# U/ c4 p5 E. M! C+ A8 I: @, \
Tracking Index (CTI) of Insulating' V/ N l, W2 k) P( c8 r( ^1 k
Tape, x# C! t) k- \1 q
Key words:& p# e W C% ^
-comparative tracking index2 E" w& [, p% g8 T7 M8 Z2 Y+ B
-CTI0 }0 j) Y2 S$ ? j4 E8 w
-insulating tape' H+ b7 b6 [; `9 d* E+ F% X9 Y1 O
-adhesive
9 O, J/ P* q/ f% ^3 m- Z! m8 D1 ^Decision confirmed
6 g5 j0 k$ V; U" T( ~6 R( M1 aat CTL 38th meeting9 b, x$ S5 d6 a# r% f$ v
Question:* K1 K& s, }) f4 T
The measured Comparative Tracking Index (CTI) for an insulating tape with adhesive
/ e' X/ I. v8 A0 Z O5 zpresent can be different from that for the insulating tape without the adhesive present. The
$ Z# F( E9 e& j- _+ w! Kcreepage distances to be applied depend upon the CTI of the insulating material.& s( J: b# P: F, _, f- i
Should the presence of adhesive on the insulating tape be considered in determining the CTI H, r1 B2 F3 {( T- {+ n1 {8 \
when determining the creepage distances requirements to be applied?! ~8 W# M/ Z9 r7 h
Decision:
2 c% z4 p) R9 ~7 D% N, r2 U- ~Yes./ e& ^; S4 U8 R+ z* I( e. \
/ a3 K. U3 X% `/ J ?0 K& l. u, p
/ H; }1 l0 c- W* }% r
7 q; \9 D& F+ X: w
5 x- ~ s* X0 J' i: L( A' x |
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发表于 2012-11-6 17:37
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