Telecontrol equipment and systems. Part 1. General considerations. Section 4. Basic aspects of telecontrol data transmission and organization of standards IEC 870-5 and IEC 870-6
Tests for electric cables under fire conditions. Circuit integrity. Part 1. Test method for fire with shock at a temperature of least 830 °C for cables of rated voltage up to and including 0,6/1,0 kV and with an overall diameter exceeding 20 mm
