SANS 61466-1:1997 Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V Part 1: Standard strength classes and end fittings
Applies to composite string insulator units for a.c. overhead lines with a nominal voltage greater than 1 000 V and a frequency not greater than 100 Hz. Also applies to insulators of similar design used in substations or on electric traction lines.
SANS 61466-1:1997 history
1998SANS 61466-1:1997 Composite string insulator units for overhead lines with a nominal voltage greater than 1 000 V Part 1: Standard strength classes and end fittings