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|  PDSH 898% @( ^: D& F Q, y& z
& A9 Z0 N1 U0 [0 S$ u
| Live metal parts projected from Edison screw caps
( h! T' t) o. T' o* _ | 8.2.1
u# w$ x6 n6 T, \& u3 @ | 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)8 K6 l+ M7 D( G. f
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Standard(s):
( Q+ k7 x" l0 X* H, I+ fIEC 60598-1% a5 T! @% O& j( v$ O2 [
IEC 60400 All editions- S( i5 S6 ^% ~' s4 M: P) p/ Z* f
Subclause(s): 8.2.1 8.2
3 U* z8 K \+ K) \$ OStandard Sheet 7005-56-2, z p( a2 x% {
No. Year DSH 0898 2010 O- \6 t) K& F: T" a
Category: LITE Developed by: ETF5 OSM/LUM
2 b+ R) J" T, X* E7 z' T; kSubject:: B& I3 K! b6 e% `5 `; Y* ]
G10q – connector’s construction: ~4 S1 D7 }: V6 v
Key words:
6 A) z' @5 P) M4 ~- G10q lampholder
! o8 m& ?) M0 p- Connector’s construction, H* S! x, C( `8 L: _8 i0 n
- Protection against electric shock
: f& L$ ]$ a3 T% b$ h( hApproved at the 49th CTL Plenary Meeting, in 2012% E2 r* o' z" H: d: @: {0 k- `
Question:
! D9 U" P3 {- {7 \+ l5 [& E) ZIn Standard Sheet 7005-56-2, the dimension “L” is solely for holder design and is not to be gauged. If the' E9 U2 Q; G+ m& N( x9 u& ~* _
G10q connector is provided according to the Figures 2, “without L(1) and without L(2)”, do you think that# G3 P+ e/ [# `7 \3 c
this construction is in conformity with IEC 60400 and IEC 60598-1?6 }( ~. A8 L2 W9 G ^. `
Decision:5 ~2 W, D5 ^4 j1 c$ o& ?1 w
Yes, for the following reasons: in Standard Sheet 7005-56-2, the dimension “L” is indicated with the8 z% B/ x! r9 Q1 b; `; U' N4 _
minimum value only, the maximum value could be infinite; it is not specified how long the lampholder, }7 U! ]+ C& A8 _; r4 E
part should be delimited by “L” dimension, it could be 0 mm; clause 8.2 of IEC 60400 – “The insertion of
0 Y; E$ N9 G" m2 Lonly one pin of the lamp (…..) or starter to the first point of contact shall be prevented. This requirement
: W. I1 t3 M0 g! o c2 ]6 ]is not applicable to G10q holders”. This construction without additional protection around the connector is
7 b4 m7 `5 O, z4 h' a8 facceptable.
. Z% y) w6 A* D# n: YThe reason for accepting the first point of contact is based on the fact that this fit was developed before$ s5 r/ _. E l
the development of IEC 60061 and IEC 60400, consequently, this fit does not follow the normal rules for; K' }# s0 w6 _8 `2 k9 n9 B
accessibility to live parts. This should be regarded as a “historic” fit having a good record of safety in
+ l7 Q% Y/ |6 [! \ pservice over many years.# I0 Y7 G! k. ]# e) N
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发表于 2012-9-16 16:34
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