Power transformer and reactor fittings - Part 5: Liquid level, pressure and flow indicators, pressure relief devices and dehydrating breathers; German version EN 50216-5:2002 + A3:2006
电力变压器和电抗器配件.第5部分:液位、压力和流量指示器、减压装置和脱水呼吸器;德文版EN 50216-5:2002+A3:2006