CSA C22.2 No. 74-16

1.1 Part 1 of this Standard applies to ballasts of the resistance, reactance, and electronic (solid state) types for use with fluorescent lamps, involving potentials of 2500 V to ground or less during either starting or running conditions, whether intended for mounting in a luminaire or otherwise, and designed to be employed on circuits of not more than 600 V between supply conductors in accordance with the Canadian Electrical Code, Part I. 1.2 In this Part of this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.