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|  PDSH 898! W2 e: n; Q4 J2 n- N2 \/ L
. B* p8 x" f' y O* A' r0 F
| Live metal parts projected from Edison screw caps( r$ K- k! ^* P" j4 \# m! D
| 8.2.1* g; Y& h% W: V/ p! e! M
| 60598-1(ed.3);am1 & 60598-1(ed.4);am1 & 60598-1(ed.5) & 60598-1(ed.6);am1 & 60598-1(ed.7)- g' ?9 P/ ]: L- |
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' T: n5 P0 ] D' zStandard(s):
( `. }2 A, V. pIEC 60598-1( |2 J! ^" M2 Z2 r" W
IEC 60400 All editions
( r6 N0 J1 ^" f- qSubclause(s): 8.2.1 8.2
6 Q. G" f1 x; d7 KStandard Sheet 7005-56-2$ T; g0 x, V9 D6 H8 s, j
No. Year DSH 0898 2010
7 a2 E8 B0 b/ h* d" ? p9 KCategory: LITE Developed by: ETF5 OSM/LUM
; b' h2 Q) n. X) G$ i) TSubject:; @# M+ _: @2 z: ?5 `& `
G10q – connector’s construction
3 r# l) V: A' K4 tKey words:
. I, J& Y, y, b9 G5 r- G10q lampholder8 q) d! t( V+ c, z3 R6 D
- Connector’s construction
' w7 C- X' d9 F& j8 A- Protection against electric shock
" j+ r, U" s% {& D5 Z# K' XApproved at the 49th CTL Plenary Meeting, in 2012
# ~: W6 H7 Q9 f4 MQuestion:
2 d! c# r% k: ~' cIn Standard Sheet 7005-56-2, the dimension “L” is solely for holder design and is not to be gauged. If the3 d+ E! G5 f+ I* u1 Z9 i. l
G10q connector is provided according to the Figures 2, “without L(1) and without L(2)”, do you think that* R/ _7 o0 V) L+ n# c' F W
this construction is in conformity with IEC 60400 and IEC 60598-1?
2 C; b" |8 L! M& S% Y3 ODecision:) S' v% H$ C& r
Yes, for the following reasons: in Standard Sheet 7005-56-2, the dimension “L” is indicated with the
9 @% ?$ _8 G5 @1 a) sminimum value only, the maximum value could be infinite; it is not specified how long the lampholder
+ L- p" n" z8 Y9 v: hpart should be delimited by “L” dimension, it could be 0 mm; clause 8.2 of IEC 60400 – “The insertion of
* `" C, W+ D8 P) K$ r: Jonly one pin of the lamp (…..) or starter to the first point of contact shall be prevented. This requirement
/ w8 g! B3 [: E3 P+ tis not applicable to G10q holders”. This construction without additional protection around the connector is' Q' C6 r F* b4 z# u+ H$ F0 G
acceptable.
: U, I8 c, M0 b) \5 H- q! \The reason for accepting the first point of contact is based on the fact that this fit was developed before9 L& R+ G6 E% b- O8 ~" C
the development of IEC 60061 and IEC 60400, consequently, this fit does not follow the normal rules for' o. B `# G* K4 o3 l% J6 \
accessibility to live parts. This should be regarded as a “historic” fit having a good record of safety in
6 g$ F8 `; a( H3 bservice over many years.# H: p9 C! ]# k
. I6 x8 r7 @6 A. A" r. S! p: o
3 K3 O. d, }& ?2 l+ b
5 d) S: b5 E" Z0 {# O
+ c$ d1 _$ [1 E. A8 e7 |4 B4 z$ J( l: R9 M2 `8 N
* [( w+ D4 J7 V! Z% W. X: B& l0 T0 Y- n1 k
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发表于 2012-9-16 16:34
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