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[TRON] DSH 632 Access to live parts on fuse-holder

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发表于 2012-11-8 17:07 | 显示全部楼层 |阅读模式
广东安规检测
有限公司提供:
DSH 632
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Access to live parts on fuse-holder
/ ~4 n2 E, s/ t3 v  a7 a
2.8.4, 8.2 & 14.5.2.4
. h* s8 A# H1 B6 H4 \+ x9 p6 I
60065(ed.7)
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8 M: L& l0 T1 Y+ u5 v0 h  E& |3 N
Standard(s):8 a% h  J9 l6 D0 C  A
IEC 60065 :20017 u3 u7 [  ?" d5 N5 z/ B
Sub clause(s):& P3 g3 m  a" ~9 L1 d6 Y
2.8.4, 8.2 & 14.5.2.4
# k; ~1 d) l& mDSH- 632
; t2 k- T2 `/ c7 O  B& C9 ISubject:$ g/ _+ e% m- S" o3 o: S# d
Access to live parts on fuse-holder
  h  G# q1 R. E2 `* o* M& aKey words:
4 B7 j* [1 N' i6 o; A3 gBY HAND1 b9 w; e) f0 l' r# t  x
Live parts( ]. X7 Q4 o( T: j& c" k
Fuse-holder( X, q5 f! \3 S) D
Approved by the 45th CTL Plenary Meeting 2008
# q  A, Q- N! B2 p" w' S, M; U) YBackground:
/ g) ?  V2 @7 M4 G% Q/ B6 yThe combined appliance inlet / fuse-holder / voltage selector illustrated on page 2 has certification to IEC 60320 and is being used in audio equipment in the scope of IEC 60065. As can be seen from the photographs, the fuse carrier cannot be removed before first pulling out the appliance coupler. However, when the fuse carrier is removed there is direct access to the live fuse clip using the standard finger.  |5 t' F, q* D0 \; T/ T
Question:- s* L4 i8 u: s: k
Question 1- Should the tests for access to live parts be conducted assuming that the appliance coupler could subsequently be re-inserted?
# m7 _/ U! e' u(c/f “Inadvertent reactivation” of safety interlock – clause 14.7)
9 f- G8 l# u* Z& G5 dQuestion 2- If the answer to question 1 is “yes”, how do we determine whether or not the% W) w" L# A% L" `2 R; Z
fuse carrier can be removed BY HAND?, J' H! U8 Y* V: v0 f
Decision:
5 R$ m7 u+ k# qThe answer to Question 1 is “yes”. The answer to Question 2:5 A' j* V( R$ b
Use the following tests as appropriate:
; w5 D. @* z, Y2 ]; Ra) 20N for 10s as per clause 9.1.7 b) using the test hook,: F% s/ ~' Z; S! {4 J# R( m
b) 50N for 10s as per clause 8.14,
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: A+ x0 k' R1 N% N4 y0 b

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