PREFACE It has been widely recognized that there is a distnict need for preferred voltage ratings for aircraft d-c electrical apparatus which will be generally acceptable to manufactures and users to serve as a basis for volgtage standards for aircraft systems and equipment.
IEEE 700-1945 history
1953IEEE 700-1953 Standard for AIRCRAFT DIRECT-CURRENT APPARATUS VOLTAGE RATINGS
1947IEEE 700-1947 Standard for AIRCRAFT DIRECT-CURRENT APPARATUS VOLTAGE RATINGS
1945IEEE 700-1945 REPORT ON AIRCRAFT D-C APPARATUS VOLTAGE RATINGS