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Nezof 发表于 2012-12-7 09:34  * f0 ^) ~9 K% j; k
防止因为cap设计缺陷或者受污染而导致触电危险& V* ], N6 l& _" Z% N0 K q! |
34A_1501_NP上附录有的
) Y# Y5 V3 I- F$ g1 PDIN EN 62776 34A-1501NP上附录虽然有。
. R5 t% ?& o8 U: T' n3 m但是要明白这个标准的适用性？ 这个附录A，也就是这个标准，只针对LED 灯管可以直接用在传统荧光灯灯具中，不需要修改线路哦，可以和电感镇流器或电子镇流器直接工作的G5 或G13的LED灯管1 D6 e8 z: }0 Q5 n
相信目前大部分的LED灯管生产厂，都是直接90-240供电，不能兼容( M; b1 M' G Y c( _
According to the recommendation of the LED workshop of IEC SC 34A MT PRESCO in January, 2011, and the decision of PRESCO at their meeting on 4th April 2011, an NP shall be published on the safety aspects of tubular retrofit LED lamps, replacing tubular fluorescent lamps, PRESCO envisages that the next step should be a CDV. This was confirmed by the LED workshop on 27th June, 2011.1 S3 W) X. h. v
可以在市场上找到两种不同版本的直管LED灯：花样翻新型和变换型' P6 ?9 m9 d c- U2 _/ n7 l! w3 R
Two different version of LED lamps in linear tubes can be found in the market: retrofit and conversion.
% U5 F& k2 o! z0 n) `花样翻新型（不需要修改线路）LED灯管是无需做改变就可装在当前的灯具中。
8 L4 L0 I9 m$ ]2 c0 b/ uRetrofit LED lamps are lamps which can be inserted in an existing luminaire without modification. This operation has the character of maintenance
; Y# t" j6 ?5 c替换传统荧光灯管而不需要修改灯具线路结构，而且替换后能保持灯具相同的安全等级。本操作具备维护特性。
: O# a, j* Y6 I: J8 k% v) C0 I变换型LED灯是需要改变灯具结构。在这种情况下，就必须要用不同的方式检查安全方面的要求，考虑新结构的热性能和电气性能和以及考虑用户重新插入4 J5 l, n- e8 v+ V
直管荧光灯的可能性。0 x9 T8 t( I, n* o
A conversion LED unit is a lamp which requires changes in the luminaire components. In this case safety requirements have to be checked in a different way taking into consideration thermal and electrical behaviors of the new components, and the possibility that the user will insert again a tubular fluorescent lamp.7 H+ L! V2 O+ o" V ~+ f" O. P( @) u
本提案只涵盖G5和G13灯头的双端LED灯。1 \7 H5 y9 o2 I2 i/ k
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发表于 2012-12-7 11:03
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只适合花样翻新的LED灯管