Graphical symbols for use on equipment and their
descriptions
Symbol
Explanation
Symbol
Explanation
Alternating current (A.C.)
Class
P
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)
Caution, risk caused by
visible radiation
“ON”/“OFF” (power;
push-push)
For indoor use only
Caution, risk of electric
shock
5
Introduction
