AMC 25.1363 Electrical systems tests

• ED Decision 2003/2/RM found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

AMC 25.1363 Electrical systems tests ED Decision 2003/2/RM 1 In carrying out the tests due account should be taken of load switching and flight crew operation of the system. 2 *Laboratory or Ground Tests* 2.1 All tests should be carried out with all equipment as representative as possible of the actual aeroplane. In particular, the simulation should include the correct representation of aeroplane cables in size, length and impedance, the correct ground (airframe) impedance and relative ground plane location and their location to other cables or systems that could influence performance. System loads and the generator drive system should also be correctly simulated. 2.2 The tests may be carried out on representative laboratory rigs or in an actual aeroplane, as appropriate. 2.3 Test procedures should be prepared to cover each test condition in the programme. 3 *Aeroplane Flight Tests* 3.1 If not adequately simulated by laboratory or ground testing, flight tests should be carried out as necessary. 3.2 Temperature tests should be carried out on equipment to establish the adequacy of the cooling media under all ground and flight conditions. 3.3 Measurements should be made to ensure that all equipment, particularly the aeroplane battery, is operating within its specified environmental conditions. 3.4 Test procedures should be prepared to cover the conditions of the tests.