The National Electrical Manufacturers Association (NEMA) has published SG 11 “Guide for Handling and Maintenance of Alternating Current Outdoor High-Voltage Circuit Breakers.”

This new standard covers general information for the handling,
installation and maintenance of high-voltage circuit breakers. It
includes information on most types of circuit breakers in service or
currently in production, including oil circuit, air-blast, vacuum and
gas (SF6). The recommendations are generally applicable, representing
the consensus of a number of manufacturers of high-voltage circuit
breakers. It was developed by the Switchgear Section of the Power
Equipment Division.

“SG 11 provides a wealth of information encompassing the
installation, handling and maintenance of outdoor high-voltage circuit
breakers,” said Ted Olsen, chair of the Switchgear Section. “The
standard’s recommendations for maintenance and installation and other
information make it an indispensable resource for anyone working with
these outdoor high-voltage circuit breakers.”

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