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Document CSA C22.2 NO 77-95 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 77-95 Document Information:
Title
Motors with Inherent Overheating Protection
Canadian Standards Association
Publication Date:
Jan 1, 1995
Scope:
This Standard applies to ac and dc motors with inherent overheating
protection designed to be used
in accordance with the Canadian Electrical Code, Part I, as follows:
(a) motors with a voltage rating not exceeding 600 V and with a
protective device connected in the
motor circuit;
(b) impedance-protected motors with a voltage rating not exceeding 600
V; and
(c) motors with a voltage rating not exceeding 5000 V and having a
protective device connected in
an external control circuit with a voltage rating not exceeding 600 V.
This Standard applies to motors with protective devices that are
responsive to
(a) motor temperature alone; or
(b) motor temperature and motor current passing through the device,
but does not apply to motors
with protective devices that are responsive to current alone.
This Standard does not apply to sealed (hermetic) type motor
compressors with inherent overheating
protection (see CSA Standard C22.2 No. 140.2).
A product that contains features, characteristics, components,
materials, or systems new or
different from those in use when the Standard was developed, and that
involves a risk of fire,
electric shock, or injury to persons, shall be evaluated using the
appropriate additional component
and end-product requirements as determined necessary to maintain the
level of safety for the user
of the product as originally anticipated by the intent of this
Standard.
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