This standard applies to all overhead, pad-mounted, dry-vault, and submersible single-pole or multipole alternating-current automatic line sectionalizers for rated maximum voltages above 1 kV and up to 38 kV. Voltages above 38 kV shall be considered special applications. In order to simplify the terminology in this standard, the term sectionalizer has been substituted for automatic line sectionalizer wherever possible.
IEEE C37.63-2013
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IEEE Standard Requirements for Overhead, Pad-Mounted, Dry-Vault, and Submersible Automatic Line Sectionalizers for Alternating Current Systems Up to 38 kV