What is the power supply to cabin flow tubes?
- 115v ac
- 200v ac
- High voltage stepped up
Explanation from PART66Online
Cabin smoke-detection flow tubes of the ionisation type need a high voltage to ionise the sampled air, so the supply is stepped up to the required high voltage rather than fed directly at the standard aircraft bus voltage. Neither 115 V nor 200 V AC alone would provide the potential needed for the ionising chamber to function.
S
sasna asked · 27 Aug 2013
cabin flow tubes...??????
Community Comments (1)
J
Jordi
26 Apr 2021
It may mean the fluorescent tubes .
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