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楼主: 冰火焰情

[安全认证] (已解决)澳洲AS/NZS60598-1目前适用版本号?

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发表于 2008-8-26 11:09 | 显示全部楼层
广东安规检测
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12.7 Thermal test in regard to fault conditions in lamp controlgear or electronic
* {2 G- y; A" K0 ]" vdevices in plastic luminaires3 K2 L$ L) F% D- e
The test applies only to luminaires with a thermoplastic housing not fitted with an extra
. |) J, l# E! Mmechanical temperature-independent device as per 4.15.2.
5 M% ?$ m: K$ C/ M8 \$ f" Y/ i+ L& s% y4 Z
12.7.1 Test for luminaires without temperature sensing controls" f1 G7 }: Z8 }
The luminaire shall be tested under the conditions specified in items a), c), e), f), h) and l) of9 W" O; u/ J/ y  F( f
12.4.1. In addition, the following also applies.
9 M1 p- Q. o( ?# E9 F' ?20 % of the lamp circuits in the luminaire, and not less than one lamp circuit, shall be
( j6 J" K& Y5 J  Jsubjected to abnormal conditions (see item a) of 12.5.1).
  ^2 K* s3 k# T5 Z1 nThe circuits which have the most thermal influence on the fixation point and exposed parts- k1 C; @; ]0 y6 d
shall be chosen and other lamp circuits shall be operated at rated voltage under normal1 y! c) C( L  C# \$ K+ r
conditions.
4 Y. E! I0 u9 k: uThe circuits subjected to abnormal conditions shall be operated at 1,1 times (the rated voltage0 B1 f+ L( K) `" [& H
or the maximum of the rated voltage range). When conditions are stable, the highest winding
+ X+ e$ e# Q2 @0 w9 Vtemperature and highest temperature of fixing points and most thermally influenced exposed% A. q: H7 y+ t) j5 @/ K5 c
parts shall be measured. It is not necessary to measure the temperature of small wound
& i/ q7 ~, l: Z0 C4 K4 v6 Edevices that are incorporated within electronic circuits.
- |$ s" R5 ~" P2 O2 j' N) sCompliance
* V% U7 {7 C1 @' j% {The values of the ambient temperature and the temperature measured at 1,1 times (the rated
  G. d# S0 ?# Q3 Nvoltage or the maximum of the voltage range) are used for the linear regression formula in8 t/ D& t# G; ~; J6 ^. t0 K
calculating the temperature of fixing points and other exposed parts in relation to a1 v: J4 r6 c; {$ v0 F' L
ballast/transformer winding temperature of 350 °C. The calculated value shall not exceed the
  S2 h  d( H- u6 Y. Ptemperature of the deflection under load of the material in accordance with method A as- z1 F: Y/ J( F1 u& V  {
defined in ISO 75 (1987), Plastics and ebonite – Determination of temperature of deflection+ k, H9 ^' x* E0 {6 j4 n( O
under load.
: l/ M& L! T# p0 g: ~12.7.2 Test for luminaires with temperature sensing controls internal/external to the" w, _# {2 ?2 \9 R
ballast or transformer
3 c! p3 L+ k/ BThe luminaires shall be set up for this test as described in the first three paragraphs of 12.7.1.1 J) w' N' l5 D8 @+ Q+ e! F1 L

% a# w( c5 G7 p' s; uThe circuits subjected to abnormal conditions shall be operated with a slowly and steadily2 |4 N5 y& r* k
increasing current through the windings until the temperature sensing control operates.
) l6 F' h' G( [) S4 t3 fTime intervals and increments in current shall be such that thermal equilibrium between4 x& l/ Z% S' |6 ~  o
winding temperatures and temperature of fixing points and most thermally influenced exposed2 [0 l- l" S. n. n
parts is achieved as far as is practicable. During the test, the highest temperature of the spots& ?% i+ c9 B0 ?& g
tested shall be continuously measured.* U) o- ^9 |# b' m& l$ s9 C
For luminaires fitted out with manual-reset thermal cut-outs, the test shall be repeated six- H3 k5 P2 K9 X& Y
times allowing 30 min intervals between tests. At the end of each 30 min interval, the cut-out4 u% t6 t. p* W) w
shall be reset.
; q# q4 M" d  N; s4 G% R+ u* bFor luminaires fitted out with auto-reset thermal cut-outs, the tests shall be continued until a
3 ]  n5 b/ |* C; ~5 K5 Gstable temperature is achieved.
/ |7 C! a" f) ^6 V5 Y& LCompliance
' E) t2 ~2 j, }1 W3 V, V; jThe highest temperature of the fixing points and most thermally influenced exposed parts,) r7 x5 C# O' A! F* g  \6 @; @
shall not exceed the temperature of deflection under load of the material according to the. Q" l# s! v' t. n4 F
method A as defined in ISO 75, at any time during the tests for thermal links, manual-reset$ Q6 N4 c/ E, ~/ f, p$ k; M8 k. s
thermal cut-outs, and auto-reset thermal cut-outs.& Q) w, ], f9 U8 S7 \9 v
In applying the requirements of 4.15 and 12.7 the following notes are to be referred to:( l7 z3 c; {, D2 I2 O6 g
NOTE 1 - ‘Fixing points’ means both the fixing points of components and the fixing points of a luminaire to the
7 i; N% E. J- L& `, imounting surface.
! u  c3 ]! d# R
3 y/ s- s( z; ?NOTE 2 - ‘Exposed part’ means the outer surface of the luminaire enclosure.# B: \1 W& v0 Y0 e) [* m6 x6 P
NOTE 3 - Measurement of exposed parts is restricted to those parts providing the luminaire/component fixing or. e" d8 [0 e' z  J& V, ~5 k
parts providing a protective barrier against accidental contact with live parts, as required by section 8 of this
3 a0 [! x4 Q2 u7 G# zstandard.
! ^0 a5 G) K$ D$ A4 v* eNOTE 4 - The hottest part of the thermoplastic material section requiring test is measured. This may often be on$ }  M) H' k% q2 L
the internal surface of a luminaire enclosure not the outer surface.
$ Y0 r% {! c' `NOTE 5 - The material temperature limits defined by clause 12.7 are with respect to materials under both' S, t. P: ?' x: I* H2 `% J
mechanical load and no mechanical load.4 m$ _+ [( R4 l- Q( R
NOTE 6 - The application of clause 12.7 must be read together with the requirements of sub-clause 4.15.
 楼主| 发表于 2008-8-26 11:29 | 显示全部楼层
感谢各位,此贴可以结案了。
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