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CSA C22.2 NO. 269.2-17:2017 Edition

CSA C22.2 NO. 269.2-17:2017 Edition

$41.60

Surge protective devices – Type 2 – Permanently connected

Published By Publication Date Number of Pages
CSA 2017-02-01 55
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Preface

This is the second edition of CSA C22.2 No. 269.2, Surge protective devices – Type 2 – Permanently connected. It supersedes the previous edition published in 2013. This Standard is one of a series of Standards dealing with surge protective devices. This Standard is issued by CSA Group under Part II of the Canadian Electrical Code.

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

This edition incorporates numerous changes throughout to align the requirements with the revisions and updates made to other standards in this series.

Scope

1.1
This Standard applies to surge protective devices (SPDs) intended for

a) permanently connected applications designed for limiting surge voltages and discharging surge currents;
b) use on 50/60 Hz circuits over 42 V and up to 750 V ac;
c) installation on the load side of the main overcurrent protective device; and
d) indoor or outdoor use in accordance with the Canadian Electrical Code, Part I.

1.2
Equipment designed solely for other power disturbances such as notches, sags, and noise is not within the scope of this document.

1.3
SPDs discussed in this Standard contain at least one voltage limiting or voltage switching component for diverting surge currents or dissipating surge energy, or both. Examples of such components are metal oxide varistors, silicon avalanche diodes, spark gaps and gas discharge tubes. Ferroresonators, motor- generators, uninterruptible power supplies, and filters containing only inductive or capacitive components are not considered SPDs in this Standard.

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 (nonmandatory) to define their application.

1.6
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.

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CSA C22.2 NO. 269.2-17
$41.60