During train prep 3617 Both A/C faulty a ~~~~~ DEPOT SHUNTING INTERMITTENT LOST LINE VOLTAGE.FOUND 3617 B/S NO 2 CCD FUSE BLOWN C/O OK.CHECKING FOLLOWING ITEMS FOR RUNNING CURRENT ,STARTING CURRENT,AC1 AND 2,AIR COMPRESSOR,CAB AC,APS OK WITHIN CRITERIA AND MEGGARING FOR CCD WEAK LINK AND SURGE ARRESTER OK.CONTINUITY CHECK FOR ALL CCD SHOE OK. HAFIZ R/HARI/LOW KC/RAGHU 05.10.2023