Low-voltage switchgear and controlgear. Part 5-3. Control circuit devices and switching elements. Requirements for proximity devices with defined behaviour under fault conditions
Reinforced bitumen sheets for waterproofing of bridge decks. The method of determining the effect of heat stress on the characteristics of the material
United power system and isolated power systems. Relay protection and automation. Differential phase protection of power lines at voltage 330 kV and above. Testing
