Standard wiring for electric light and power : as adopted by the Fire Underwriters of the United States : containing national electrical code : explained and illustrated together with the necessary tables and formulae for outside and inside wiring and construction for all systems / by H. C. Cushing, Jr.
Standard wiring for electric light and power : as adopted by the Fire Underwriters of the United States : containing national electrical code : explained and illustrated together with the necessary tables and formulae for outside and inside wiring and construction for all systems / by H. C. Cushing, Jr.