Electric Symbols on Blueprints - House Plans Helper Wall and floor power socket outlet symbols. GFCI stands for Ground Fault Circuit Interrupter - or circuit breaker for short. These outlets are required in places with water - so that's bathrooms and kitchens and maybe outside - especially near a swimming pool. It's so that if you drop your hairdryer in the bath you won't electrocute anyone!Lighting Symbols · TV · Floor Plan Symbols · Free Blueprint Symbols · HVAC Symbols Symbols and Symbol Libraries for Adobe Illustrator Symbols and Symbol Libraries for Adobe Illustrator. Symbols for Adobe Illustrator Presentation Quality. Why spend hours creating common symbols or drawings when you can drop them into your drawing in seconds from one of our libraries?