PDSH 958 Small push in lamp Small plastic lampholder Mechanical test

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

PDSH 958 8 W. g; G0 R8 T& h5 i

Small push in lamp Small plastic lampholder Mechanical test

20.7.6

60238(ed.5);am1;am2 & 60238(ed.6);am1;am2 & 60238(ed.7);am1;am2 & 60238(ed.8);am1;am2 & 60598-2-20(ed.3) & EN 60238: all editions % y1 k& J  E: i

* X* f' [2 b) L1 C& {Standard(s):
& _$ |1 t  f# \% XIEC 60598-2-20/2010
IEC/EN 60238 All editions
6 {' J8 y8 ~) `4 eSubclause(s): 20.7.6
: @% F. E* c# i: Z5 i' i; ^No. Year PDSH 0958 2010
Category: LITE Developed by: ETF5 OSM/LUM
- w% i4 v* I4 p, t# Y. p7 fSubject:
Small push in lamp
, h! @: R  d" V' f9 N' rSmall plastic lampholder
% F5 Q/ r4 o8 I1 _Mechanical test
Key words:
5 I9 x9 D# T  {) W3 L$ Q- Push in lamp
- Plastic lampholder
# J0 g  _+ \! ^1 ?- W! Q2 K0 F- Mechanical test
2 T8 z- r) |) U9 w3 \To be approved at the 49th CTL Plenary Meeting, in 2012
- N$ \/ ]- s& O0 M# p* V/ BQuestion:
( l5 b4 `: o3 ?. s' B( fWe seek clarification on the correct method to perform a mechanical impact test for both mains rated
voltage, SELV and ELV lighting chains in respect of clause 20.7.6 of the above referenced standards.
$ N1 k6 B- s* O0 N- |The seems to be a difference between IEC and EN.
& i8 }- [- \# D) A+ B1/ IEC version standard references tests to 60238 clause 15 on three samples (push in type) clause 15.2
applies but which force?
& F& @( @5 C& L) E# m! m: [2/ According to IEC version of the test E5 & E10 lampholder are subjected to a free fall test EN 60068-2-
8 B8 S# Y1 G: C& O& E75. Clause 15.6 suggests a method of test to fix the lampholder to plywood. We have made some
different tests by way of experiment in our Laboratory using the spring force impact hammer (better for
1 A. d! S- ?# d1 E+ H$ Q- Uthe test engineer) with the lampholder fixed against plywood and again without the
+ q+ p5 o3 I7 w( I, u+ N: p$ Mlampholder being fixed at all. We find that when the lampholder is fixed most times the plastic
lampholder cracks which can result in the live contacts becoming loose within the lampholder. What is
the correct test and lampholder support method to make according to IEC?
/ |( Y9 b/ _% K5 [  u! C6 r3/ According to EN the test is again referenced to 60238 but is modified by Annex ZB. Its says in annex
2 ~$ f, @7 d+ g* f( ZZB the tests don’t apply to E5 but what about push in?
; Q4 o% B$ R. W# ?& y! Q/ NDecision:
1 f* M! H/ ?( d% ^- ]; k- m6 G1/ 15.2 is not applicable to push in type lampholder. 20.7.13 takes over.
2/ Pendulum hammer applies to E14 and larger lampholders; E5, E10 and similar small push in type
lampholders shall fulfil the tumbling barrel test.
3/ Small push in type lampholders are equalised as E5.