Outlet,device, Pull And Junction Box Flashcards
The size and shape of a electrical boxes are dependent on what factors
• Application
• Raceway size
• Number of conductors entering the box
• Type of building construction
• Weather conditions of the area
• Other special requirements
provides the rules for sizes and shapes of electrical boxes.
NEC Section 314
Before you can plan and route conductors to their termination points, as well as pick and install the right types and sizes of boxes, you must know the following information:
• Purpose of the box
• Size of the conductors
• Number of the conductors
• Location of the box
• Conductor ampacity
• Allowances for voltage drops
Three categories of Boxes
• Pressed steel boxes with knockouts of different sizes for surface metal raceways or with conduit, electric metallic tubing, and cable entrances
• Cast iron, aluminum, or brass boxes with threaded hubs of different sizes and locations for raceway entrances
• Nonmetallic boxes
types of electrical boxes
Ceiling Fan Box
Conduit Body
Custom Assembly
Floor Box
Handhole Enclosure
Hazardous
Location Box
Junction Box
Plastic Electrical
Outlet Box
Weatherproof
Outlet Box