61347-1（GB 19510.1）中附录B和附录C的区别
Annex B(normative)
Particular requirements for thermally protected lamp controlgear
B.3.2
temperature declared thermally protected lamp controlgear
lamp controlgear incorporating means of protection against overheating to prevent the lamp
controlgear case temperature under any conditions of use from exceeding the indicated value
Annex C
(normative)
Particular requirements for electronic lamp controlgear with means of protection against overheating
C.2.1
Temperature declared thermally protected lamp controlgear
lamp controlgear incorporating means of protection against overheating to prevent the lamp
controlgear case temperature exceeding the indicated value
一样是定温热保护式灯的控制装置，从字面上看区别只在于B.3.2定义中有“在任何使用条件下”，还有附录C是针对电子控制装置。
具体什么区别？大家能不能说一说？ 看13章，只有非电子式镇流器才涉及tw，所以我想附录B是否只针对非电子式的镇流器？
但附录B一直用controlgear这个字眼，并不明言是镇流器，有点疑惑。
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