Signs and luminous-discharge-tube installations operating from a no-load rated output voltage exceeding 1 kV but not exceeding 10 kV - Part 1: General requirements; German version EN 50107-1:2002
空载额定输出电压超过1kV但不超过10kV的标志和发光放电管装置.第1部分:一般要求;德文版EN 50107-1:2002