The September 1930 issue:
Standardization of the investigation of electrical fires and accidents. (Page 3) With the continued electrification, comes the hazards that go along with it and the committee report on the subject is published in this issue.
Insulation vs. Grounding (page 11) An interesting article about the protection 0f electrical equipment from a safety standpoint.
Motor Wiring Tables (page 27) This table is based on the 1928 NEC
Bare Bus Bars and Risers (page 29) This is quite new and involves many fine points of engineering. The first large installation was in the Barclay-Vesey Building in New York City.