BS EN 60947-4-2. Low-voltage switchgear and controlgear. Part 4-2. Contactors and motor-starters. AC semiconductor motor controllers and starters— 49 стр.
Sampling procedures for inspection by attributes. Part 1. Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection— 94 стр.
Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors— 49 стр.
Dimensions of low-voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of switchgear, controlgear and accessories— 56 стр.