Due to be released next month by the IEEE and ANSI, the new IEEE 1491-2005 standard will define the selection and use of battery monitoring equipment for stationary battery applications. These applications include important and critical areas such as uninterruptible power systems (UPS), telecommunications, utility applications (conventional and nuclear), switchgear, engine starting and any other use of stationary batteries. Stationary battery types include vented lead acid, valve regulated lead acid and nickel cadmium.
Titled, “Guide for Selection and Use of Battery Monitoring Equipment in Stationary Applications,” IEEE 1491-2005, has been under development for several years and is sponsored by the IEEE Standards Association, Stationary Battery Committee, of the IEEE Power Engineering Society. The standard includes and defines battery measurement parameters, each with a description, purpose of monitoring, as well as indications and interpretations. Presently, there are 17 measurement parameters within the standard.
Other items include safety, communications (both local and remote), security, software, electrical (installation and general specifications), mechanical items and general application practices.
There are informative annexes and sections discussing communication parameters, battery ohmic values, as well as ac and dc electrical currents present in all battery systems, for all applications. Environmental issues are discussed regarding gasses, humidity and airflow. Various sensor types and their operation also are discussed.
This standard references and integrates with other IEEE standards and recommended practices, both in the stationary battery area and other related disciplines. The standard has been several years in the making, and all industry sectors are looking forward to this important new document, where none presently exists. It will provide users, manufacturers, the engineering community and all interested parties a new tool to provide a higher level of reliability, availability and serviceability in this critical area of dc power.