Safety rules for the installation and maintenance of electric supply and communication lines, comprising part 2, the Definitions and the grounding rules of the 6th ed. of the National electrical safety code.
Series: Handbook; 81; National Bureau of Standards handbook ;; 81.
Publisher: U.S. Govt. Print. Off.
Published: 1961
Place of publication: Washington
Language: eng
Number of pages: 197
Subjects: Electric engineering -- Safety regulations -- United States
Other titles: National electrical safety code.