Hydraulic power plants. Rates of the petroleum products losses in the exploitation process of the hydraulic turbine equipment. Method of turbine oil loss calculation in hydraulic turbine equipment operation
Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 2-3. Immunity requirements for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz intended for use by electricity suppliers and distributors
