CSA Group Preferred Voltage Levels for AC Systems, 0 to 50 000 V

Preface This Standard establishes voltage standards for AC Systems in Canada to provide a guide: (a) To national committees on utilization and control equipment or devices for establishing standard ratings of such equipment or devices on a basis coordinated with standard systems (b) To system designers so that new systems will be designed to accommodate standard ratings of equipment and devices (c) To system operators and to electrical energy users for determining the need for corrective measures, with respect to existing systems, to accommodate current designs of equipment and devices and (d) Towards a uniform system of voltage selections in the country without any suggestion that each utility will supply every voltage listed. The establishment of standards on this basis is aimed at future development towards more uniformity on a national basis.