61347-2-7 的22.2 的高温测试，这里的高温是指应急驱动模块的最高ta 吗？

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请教61347-2-7  的22.2 的高温测试，这里的高温是指应急驱动模块的最高ta 吗？谢谢。
22.2 High temperature operation – The test of 22.1 is repeated at 0,9 times the rated
  k% s7 M2 `, Y$ j4 M5 S2 doperating voltage but at the maximum of the declared ambient temperature range.
; d# ]" H9 s; |/ B9 qNormal lighting supply failure shall then be simulated and the battery shall operate the lamp
4 k9 M! l3 V, F( H" V, _from the controlgear for the rated duration of the operation. At the end of the rated duration,
5 b5 P$ `/ L$ s0 G9 Sthe measured battery voltage shall be at least Vmin as specified in Clause 20.
! N& j. q, v% j$ ZDuring the test, all parts, including batteries and lamps, shall be placed within the test
cabinet. Where the ambient temperature rating limit of the test battery is different from that
8 g) k1 x8 z, S2 M6 N$ @: _declared for the controlgear, then the battery should be held separately at its own maximum
" v. ^  R! Y4 _. n! }$ pdeclared temperature rating.
Compliance shall be checked by measurement.