Ma tfehmem-d ifewwawen n 10 kV n tbuzliyen n ttbanen n tbanen. D acu-tt 10 kV n uṭawt n uṭawt? 3. Tisasiwin n 10 kV Oil Immersed Immersed Transformers 3.1. Anagrawt n tmerwint 3.2. Tmeɣra n weḥma n wemẓa 3.3. Rrust n tnebbat ed Durability. Ɣef-aɣen n tmeɣliḥ ed tmeɣlil n tmerwint 4.2.