Medium voltage and low voltage cell installation construct and engage works (630 kVA Transformer + Mid-voltage cells and Prefabricated Pavilion) within restoration properly museology standards, of historical Beykoz Palivilon affiliated to Directorate of National Palaces within General Secretariat of Turkish Grand National Assembly were carried out. Also, UPS procurement and electric infrastructure works commitment of Dolmabahçe Palace within the Directorate was carried out.