T13
Electric lights need only be on for 30 mins prior to arrival until completion of ldg and taxiing. Suggests if PAPI in use, lights should be activated 10 mins prior to arrival to burn off condensation so as to not give false information.
As far as alternate is concerned, if served by PAL, then a responsible person is needed in attendance. That's about as far as it goes with regard to alternate, they do not need to be on for any (specified) period of time.
Good luck with your interview.
