Friday, August 3, 2012

Electricial Junction Boxes

Electrical Junction Boxes, Fixture Boxes, Receptacle Boxes, Splice Boxes 

One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, ap
plication and its location.
Box Fill - How many wires you can put in a box? The NEC Code requires wiring to be protected and enclosed when devices such as rece
ptacles, fixtures and switches are being installed. Sometimes it is necessary to junction or splice wires in home wiring electrical boxes. 
When splicing wires, an accessible electrical junction box box is necessary to enclose the spliced wires, thus the trade name is electrical enclosure. 
This list shows various electrical boxes and displays the box name and describes the typical application. 

The most common type of materials that home wiring electrical boxes are made of are: plastic, fiberglass, steel, aluminum and bakealight. The metal boxes come with knock-outs for using conduit such as EMT (electrical metallic tubing) or flex - steel or aluminum.Why don't you see the exact same electrical box at your supplier? The availability of the types of boxes will depend upon which electrical manufacturer or purchasing channel your supplier has a contract with.

Boxes and Wire-Fill

How many wires can be installed into an electrical box will depend on how many Cubic Inches the box has and what size wires are being installed.

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