The Melbourne Electric Supply Co. operated a Power Station in Richmond and provided power to the Prahran and Malvern Tramways Trust and the Hawthorn Tramways Trust. They also provided power to Geelong and operated the Geelong Tramway system. MESCo Geelong and Richmond operations were taken over the SECV in 1930. The book gives the requirements for wiring of building and switchboard. Yields information on the electrical requirements that electricians were required to work to where MESCo supplied electricity. It would have been used in the development of the SEC rules. Has a strong association with one of the MESCo Electrical Inspectors.Book - The Melbourne Electric Supply Co. Service and Wiring Rules - 64 pages, centre stapled, dark fawn covers. Provides rules for the Melbourne (Richmond) and Geelong undertakings. Dated 1/4/1918. Has a number of printed updates pasted into the book along with a typed and hand witten note. Price 6d. Has an index.Some hand written notes on the various clauses. Has the stamp of "Electric Inspector" in the top right hand corner. Numerous marks of red and blue pencil to high light specific clauses.rules, wiring, electrical, regulations, mesco, geelong, tramways