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Document CSA C22.2 NO 223-M91-CAN/CSA UPD 2 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
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CSA C22.2 NO 223-M91-CAN/CSA UPD 2 Document Information:
Title
Power Supplies with Extra-Low-Voltage Class 2 Outputs
CSA Standards
Publication Date:
Sep 1, 2009
Scope:
This Standard applies to
(a) power supplies including transformer units of both the direct
plug-in and cord-connected types
that utilize a step-down, isolating transformer of the
extra-low-voltage secondary type and that
may incorporate rectifiers and other components to provide an ac or dc
output; and
(b) battery chargers for rechargeable batteries.
Note: For convenience, the term "power supply" may be used throughout
the Standard.
This Standard applies to power supplies intended for use indoors in
nonhazardous locations in
accordance with the Rules of the Canadian Electrical Code, Part I,
when connected to a nominal
system voltage of 120 V or 240 V supply and having an output
conforming to the requirements for an
extra-low-voltage Class 2 circuit.
This Standard applies to power supplies intended to supply extra-low
voltage for the operation of
products such as household electronic equipment, telephone equipment,
communications equipment, and
motor-operated equipment.
This Standard does not include requirements for batteries other than
that they must be suitable for
recharging.
This Standard does not apply to automotive or nonautomotive battery
chargers that do not have an
extra-low-voltage Class 2 output, or transformerless, nonisolated
battery chargers for charging
special purpose battery packs, as covered by CSA Standard
CAN/CSA-C22.2 No. 107.2, Battery
Chargers.
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