The necessity and importance of the standardization of electrical apparatus was recognized in Germany as early as 1894 and . the first rules (Sicherheitsvorschriften fur elektrische Starkstromanlagen gegen Feuersgefahr) came into force in that country in 189S. In the U. S. of America the first discussion on Standardization of Generators, Motors and Transformers took place in 1898 which resulted in the appointment of a Committee and the subsequent acceptance of the rules proposed by it. In England the BritishEngineeringStandards Association was formed in IgOI. In connection with the British...