Preface
This is the third edition of CSA C22.2 No. 232, Optical fiber cables. It supersedes the previous editions published in 2009 and 1988. It is one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.

The major differences between this edition and the previous edition include:

a) updates to flame classifications (see Clause 6.1); and

b) updates to fire rating marking (see Clause 7.1).

For general information on the Standards of the Canadian Electrical Code, Part II, see the preface of CAN/CSA-C22.2 No. 0.

Scope
1.1
This Standard applies to non-conductive optical fiber cable and conductive optical fiber cable intended to be installed indoors in non-hazardous locations in accordance with CSA C22.1, Canadian Electrical Code, Part I.

This Standard provides performance requirements for products installed in accordance with Section 56 of the Canadian Electrical Code, Part I.

1.2
This Standard does not apply to hybrid optical fiber cables whose construction (excluding the optical fiber component) is covered in other applicable Standards of the Canadian Electrical Code, Part II.

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.