Digital paths of the initial distribution of programs of a sound broadcasting, organized by fiber optical, satellite, radiorelay and cable systems of transfer. Terms and definitions. Structure. Basic parameters. Methods of measurement
Test for electric cables under fire conditions. Сircuit integrity. Part 2. Test method for fire with shock at a temperature of at least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter not exceeding 20 mm
