​Here is a summary of the range of ANSI C12 Standards that NEMA Members work to develop and maintain.

Evaluating Meter Socket Lifespan

Under ideal conditions, meter socket manufacturers anticipate that meter sockets will have a lifespan of approximately 20-25 years. Because less-than-ideal conditions often surround meter socket installation and operation, NEMA’s Meter Mounting and Test Equipment Section Members recommend that utilities manually inspect sockets as regularly as is economically and operationally practicable.

There is a range of commonly occurring factors which are likely to reduce socket lifespan. During inspections, utility workers should look for evidence of these factors in the form of discolored (i.e., blue) or darkened connections resulting from over-heating and/or micro-arcing; loose, mismatched or out-of-place electrical connections; or rust on any of the metal components due to corrosion.

• Please see our White Paper on the subject for more information.