Uniform Depth Within Working Space
Working Space Requirements for Electrical Equipment
Grounding at Overhead Service
Single-Phase Electrical Panel Conductors
Three-Phase Panel Conductors
Single-Phase and Three-Phase Panel Bus Bars
Multiple Service Disconnects
Multiple Services Identification
Commercial Electrical Flow: Switchgear, Switchboard, Transformer, and Panelboard
Common Electrical Breakers
Lightning Rods
Overhead Service Conductor Clearances
Equipment Grounding Conductor
Water Main Ground
Common Commercial Grounding Methods
Ground Ring
Common Commercial Receptacle Colors
Common Receptacle Types
Sample Transformer Label
Common Conductor Color Coding
Sizing Conductors: Overcurrent Protection & AWG
Four-Way Switch
Conduit vs. Cable Receptacle Grounding
Working Space and Dedicated Electrical Space
Working Space: Live parts on one side, insulated or underground parts on the other side
Working Space: Live parts on one side, grounded parts on the other side
Working Space: Live parts on both sides
Common AWG Wire Sizes