NACE SP0177-2014

This standard practice presents guidelines and procedures for use during design, construction, operation, and maintenance of metallic structures and corrosion control systems used to mitigate the effects of lightning and alternating current power transmission systems. It contains several figures on differents currents for copper conductors, and zinc ribbon ampacity, as well as tables with information about human resistance to electrical current, grounding cables, and average impedance for various conductor sizes. This standard is maintained by Task Group 025.