This standard covers basic provisions for safeguarding of persons from hazards arising from the installation@ operation@ or maintenance of (1) conductors and equipment in electric supply stations@ and (2) overhead and underground electric supply and communication lines. It also includes work rules for the construction@ maintenance@ and operation of electric supply and communication lines and equipment. The standard is applicable to the systems and equipment operated by utilities@ or similar systems and equipment@ of an industrial establishment or complex under the control of qualified persons. This standard consists of the introduction@ definitions@ grounding rules@ list of referenced and bibliographic documents@ and Parts 1@ 2@ 3@ and 4 of the 2007 Edition of the National Electrical Safety Code.