State system for ensuring the uniformity of measurements. State primary standard and state verification schedule for measuring instruments of direct current strength over range from 1x10 in minus 16 degree up to 30A
Shunt power self-healing capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 kV. Part 1. General. Performance, testing and rating. Safety requirements. Guide for installation and operation
