BACK 16.01.2014.About ProjectAnnual testing of protection devices for transformer bays in S/S 20/0,4 kV Coca Cola No. 1783 Devices: SIEMENS SIPROTEC 4 7SJ6225 ContractorElectra d.o.o. Sarajevo, B&H. End-ClientCoca Cola HBC B-H Hadžići, B&H.