CSA - C22.2 NO. 247-14
Operators and systems of doors, gates, draperies, and louvres
|Publication Date:||1 July 2014|
This Standard applies to electrically-powered
This Standard gives requirements for complete doors, gates, and other such assemblies that include electrically-powered
This Standard specifies requirements for accessories, such as external entrapment protection devices, for use with appliances covered by this Standard.
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.
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.