DIN EN 50107-1-2003 输出电压超过1kV不超过10KV的标志及发光放电管装置.第一部分.一般要求
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