Preface: This is the seventh edition of CSA C22.2 No. 35, Extra-low-voltage control circuit cable, low-energy control cable, and extra-low-voltage control cable, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code, Part II. It supersedes the previous editions, published in 2009, 1987, 1963, 1947, 1940, and 1937. This standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope: 1.1 This Standard specifies requirements for the following types of control cables, rated 30 V maximum, intended for use in extra-low-voltage control circuits in accordance with CSA C22.1, Canadian Electrical Code, Part I: a) Type LVT extra-low-voltage control circuit cables, rated 60 °C maximum; b) Low-energy control cables, rated 105 °C maximum; c) Type ELC extra-low-voltage control cables, rated 60 °C maximum; and d) Type GCS golf course and Type LSS lawn sprinkler, Type LVLL low-voltage landscape lighting, and Type ULEC underground low-energy circuit cables, rated 60 °C maximum. 1.2 Tables 1 and 10 provide summaries of the types of cables covered by this Standard. 1.3 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.