BS EN 60099-6. Surge arresters. Part 6. Surge arresters containing both series and parallel gapped structures. System voltage of 52 kV and less— 83 стр.
Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 1: Definitions, information and general principles— 53 стр.
Corrigendum 1 - High-voltage swithgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV— 0 стр.
Selection and dimensioning of high-voltage insulators intended for use in polluted conditions - Part 2: Ceramic and glass insulators for a.c. systems— 22 стр.