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9
Graphical symbols for use on equipment and
their descriptions
Symbol
Explanation
Symbol
Explanation
Alternating current
(A.C.)
Class
II
equipment
(equipment in which
protection against
electric
shock relies on Double
Insulation or
Reinforced
Insulation)
Direct current (D.C.)
“ON” (power)
Protective earth
“OFF” (power)
Protective bonding
earth
Stand-by (power)
Functional earth
“ON”/“OFF” (power;
push-push)
For indoor use only
Caution, risk of electric
shock
TGA407(option)_(e-e).fm Page 9 Tuesday, December 26, 2017 8:48 AM