CSA Group Voltage and polarity testers

Preface This is the third edition of CSA C22.2 No. 160, Voltage and polarity testers, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the previous editions published in 1985 and 1983. Major changes from the previous edition include the following: a) requirements for the evaluation of properties of polymeric materials have been updated; b) corrosion protection requirements have been added; and c) all of the reference standards have been updated.   Scope 1.1 This Standard applies to voltage and polarity testers for use in nonhazardous locations, in accordance with the Rules of the Canadian Electrical Code, Part I, on electrical supply circuits and equipment at points where the voltage difference does not exceed 750 V. 1.2 This Standard does not apply to devices primarily intended to measure voltage, such as those that employ a meter movement. 1.3 This Standard does not apply to devices designed specifically for use by an electric or communication utility in the exercise of its function as a utility. 1.4 In 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.