5. Wiring Methods Flashcards
Terms : Hide Images [1]
8950705121 | armored cable (Type AC) | An assembly of wires contained within a flexible metallic armor for protection. | 0 | |
8950705122 | auxiliary gutter | A raceway primarily used to extend or supplement wiring spaces at load centers, transformers, and metering cabinets. | 1 | |
8950705123 | back-to-back bend | A bend of a length of conduit that results in two 90° bends to produce some form of a U-shape. | 2 | |
8950705124 | box offset | A bend of a length of conduit that includes two shallow bends (about 5° each) in opposite directions a short distance apart so that conduit running along a surface can be directed into a knockout hole of an electrical box. | 3 | |
8950705125 | busway | A sheet metal enclosure into which conductors are installed at the factory. | 4 | |
8950705126 | cable tray | An open cable-supporting assembly used in a variety of commercial and industrial buildings. | 5 | |
8950705127 | electrical metallic tubing (EMT) | Electrical conduit with relatively thin walls usually made of galvanized steel, though it can be made of aluminum, and can be manually bent with a hand tool. Also called thin-wall conduit. | 6 | |
8950705128 | electrical nonmetallic tubing (ENT) | Plastic corrugated tubing that provides a flexible electrical conduit. Also called smurf tube because one type of ENT is a bright blue color, like the popular cartoon characters. | 7 | |
8950705129 | field bend | A bending of conduit done at a construction site (as opposed to a factory bend). | 8 | |
8950705130 | flexible metal conduit (FMC) | Corrugated metal tubing that functions as flexible electrical conduit. | 9 | |
8950705131 | intermediate metal conduit (IMC) | Metal conduit with walls thicker than EMT but thinner and lighter than RMC. | 10 | |
8950705132 | liquidtight flexible metal conduit (LFMC) | Electrical conduit composed of corrugated metal tubing that is covered with a waterproof outer coating and uses special fittings to maintain its watertight integrity. | 11 | |
8950705133 | metal-clad cable (Type MC) | A heavy-duty commercial and industrial cable that has one or more conductors individually insulated and enclosed in an interlocked metallic armor that consists of corrugated tubing or interlocking tape. | 12 | |
8950705134 | multiconductor cable | A flexible assembly of conductors that have an overall protective covering. | 13 | |
8950705135 | nonmetallic-sheathed cable | A cable assembly covered in a nonmetallic sheath and containing of two to four insulated conductors and one bare copper or one green insulated grounding conductor. | 14 | |
8950705136 | offset bend | A bending of a straight run of conduit to go around some obstruction or to change slightly the plane of the run. | 15 | |
8950705137 | rigid metal conduit (RMC) | A heavy-wall electrical raceway that is thicker and heavier than intermediate metal conduit (IMC). | 16 | |
8950705138 | rigid polyvinyl chloride conduit (Type PVC) | A circular, rigid, nonmetallic raceway that uses couplings, connectors, and fittings for joints. | 17 | |
8950705139 | saddle bend | A bend of conduit using three different offsets to go around an obstruction and then return to the same plane as the rest of the run of conduit. | 18 | |
8950705140 | service-entrance cable | The cable used to bring power from the utility pole to the customer's building. | 19 | |
8950705141 | shrink | The amount of length lost along a bend of conduit by adding one or more bends. | 20 | |
8950705142 | stub bend | A single 90° bend in a length of horizontal conduit used to run to an outlet box. | 21 | |
8950705143 | surface raceway | A wireway that consists of one- or two-piece channels and easily installed on a surface (rather than being concealed in walls, floors, or ceilings). | 22 | |
8950705144 | wireway | A rectangular sheet metal enclosure with a removable cover. | 23 |