High-intensity Radiated Fields (HIRF) Protection.

CFR · 2024-01-01 · US · Title 14

(a) Except as provided in paragraph (d) of this section, each electrical and electronic system that performs a function whose failure would prevent the continued safe flight and landing of the airplane must be designed and installed so that— (1) The function is not adversely affected during and after the time the airplane is exposed to HIRF environment I, as described in appendix L to this part; (2) The system automatically recovers normal operation of that function, in a timely manner, after the airplane is exposed to HIRF environment I, as described in appendix L to this part, unless the system's recovery conflicts with other operational or functional requirements of the system; and (3) The system is not adversely affected during and after the time the airplane is exposed to HIRF environment II, as described in appendix L to this part. (b) Each electrical and electronic system that performs a function whose failure would significantly reduce the capability of the airplane or the ability of the flightcrew to respond to an adverse operating condition must be designed and installed so the system is not adversely affected when the equipment providing these functions is exposed to equipment HIRF test level 1 or 2, as described in appendix L to this part. (c) Each electrical and electronic system that performs a function whose failure would reduce the capability of the airplane or the ability of the flightcrew to respond to an adverse operating condition must be designed and inst

official document · source cfr-2024 · id 14:§ 25.1317