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ANSI C119.6-2018
Electric Connectors - Non-Sealed, Multiport Connector Systems Rated 600 Volts or Less for Aluminum and Copper Conductors
Covers non-sealed, multiport distribution connectors rated 600 V or less used to make electrical connections between aluminum-to-aluminum, aluminum-to-copper or copper-to-copper conductors for above-grade electric utility applications.
NEMA: National Electrical Manufacturers Association [nema]