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2. Introduction
2-1 SYMBOLS
PROTECTIVE GROUNDING TERMINAL: A terminal that must be
connected to earth ground prior to making any other connection
to the equipment.
A terminal to which or from which an alternating (sine wave)
current or voltage may be applied or supplied.
A terminal to which or from which a direct current or voltage may
be applied or supplied.
This symbol indicates the word "phase".
This symbol indicates the principal on/off switch is in the
ON position.
This symbol indicates the principal on/off switch is in the
OFF position.
May be used in lieu of the wording "Caution Risk of Electric
Shock" for any cautionary marking.
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