These are all
different types of electrical boxes (with the exception of the lunch box, of
course). The
location and type of wiring you make will determine what type of box to use. The lunch box
is used after work is done. Before
going into specific types of boxes, we'll move some things that are applicable
to all types of electrical boxes.
* All electrical connections must be contained in an electrical box. The case protects the building material and other flammable materials in the case of electric sparks.
* All boxes must be accessible. Never cover a box with drywall, paneling or other wall coverings.
* If an electrical junction box contains only the spliced son and no device such as a switch, it must be covered with a blank cover.
*
An electrical box must be installed flush with the front edge of the wall or
ceiling surface finish.* All electrical connections must be contained in an electrical box. The case protects the building material and other flammable materials in the case of electric sparks.
* All boxes must be accessible. Never cover a box with drywall, paneling or other wall coverings.
* If an electrical junction box contains only the spliced son and no device such as a switch, it must be covered with a blank cover.
* Make sure your box is deep enough to prevent the son
from clumping. Electrical codes determine how many son that the size
of each box size accommodation according to the cubic inch capacity of the box.
For
example, a wire # 2 occupies 14 cubic inches, and a wire # 12 occupies 2.25
cubic inches. When
count thread count the apparatus or device such as a wire. It
is always safer to use a large box unless you do not have space on the wall or
ceiling.
Electrical boxes come in different materials and different shapes. To become familiar with the different types of boxes, you'll be able to select the appropriate box for your project of house wiring.
Plastic:
* Boxes plastic electrical boxes are the most used for the internal wiring of houses. They are inexpensive and easy to install. Check with your local building department before using a plastic box.
* Some plastic boxes have holes w / guides knockout. These boxes have built-clamps so the cable is not held in place by the box. You must use cable ties and cable ties within 8 inches of the box, if you use this type of box.
* Plastic boxes are easier than the damage of metal boxes, so buy extra boxes just in case. Never install a cracked box.
The exception is an outer box in extra strong PVC.
Some plastic boxes include nails for anchoring the box in the framing material.
Metal:
* Metal electrical boxes are stronger and offer better grounded than plastic boxes.
* Cans must be grounded to the earth circuit system. Connect the son of the ground circuit to the box with a thread of the nut and the green wire pigtailed, or a clip grounding.
* The cable entering a metal box must be installed.
* Remodel electrical boxes are used for running cable to install new equipment on an old wall.
* Plastic deformation boxes has "wings" boxes and remodeling have extendable metal clips or bendable ears that hold them on the wall.
External boxes are usually molded plastic or die-cast aluminum.
Molded plastic material:
* These boxes are used with PVC pipe in the external wiring and the internal wiring exposed.
Cast aluminum:
* These data are required for outdoor equipment connected to the metal pipe.
FORMS
Rectangular (2 "X3") Name of "One-Gang":
* These boxes are used for switches and sockets.
* One-gang boxes may have detachable sides that allow them to be combined into boxes with two gangs.
* When a square box is used only for splicing cables, it is called an electric junction box and a blank cover plate must be used.
Octagonal trade name "Three-0":
* These contain wire connections for ceiling fixtures.
* Some octagonal electrical boxes have extendable braces that fit any joist spacing and are nailed or screwed to the framing material.
When selecting the correct electrical box for your project will help ensure the success of your project wiring, always follow electrical and follow the safety instructions. Never work on live circuits.
Electrical boxes come in different materials and different shapes. To become familiar with the different types of boxes, you'll be able to select the appropriate box for your project of house wiring.
Plastic:
* Boxes plastic electrical boxes are the most used for the internal wiring of houses. They are inexpensive and easy to install. Check with your local building department before using a plastic box.
* Some plastic boxes have holes w / guides knockout. These boxes have built-clamps so the cable is not held in place by the box. You must use cable ties and cable ties within 8 inches of the box, if you use this type of box.
* Plastic boxes are easier than the damage of metal boxes, so buy extra boxes just in case. Never install a cracked box.
The exception is an outer box in extra strong PVC.
Some plastic boxes include nails for anchoring the box in the framing material.
Metal:
* Metal electrical boxes are stronger and offer better grounded than plastic boxes.
* Cans must be grounded to the earth circuit system. Connect the son of the ground circuit to the box with a thread of the nut and the green wire pigtailed, or a clip grounding.
* The cable entering a metal box must be installed.
* Remodel electrical boxes are used for running cable to install new equipment on an old wall.
* Plastic deformation boxes has "wings" boxes and remodeling have extendable metal clips or bendable ears that hold them on the wall.
External boxes are usually molded plastic or die-cast aluminum.
Molded plastic material:
* These boxes are used with PVC pipe in the external wiring and the internal wiring exposed.
Cast aluminum:
* These data are required for outdoor equipment connected to the metal pipe.
FORMS
Rectangular (2 "X3") Name of "One-Gang":
* These boxes are used for switches and sockets.
* One-gang boxes may have detachable sides that allow them to be combined into boxes with two gangs.
* When a square box is used only for splicing cables, it is called an electric junction box and a blank cover plate must be used.
Octagonal trade name "Three-0":
* These contain wire connections for ceiling fixtures.
* Some octagonal electrical boxes have extendable braces that fit any joist spacing and are nailed or screwed to the framing material.
When selecting the correct electrical box for your project will help ensure the success of your project wiring, always follow electrical and follow the safety instructions. Never work on live circuits.
0 komentar