Autodesk 235B1-05A761-1301 User Guide - Page 824

connection type A property of ducts, pipes, conduits, and cable trays that describes how the segments are mounted together. Normally, connector types must match to form a valid connection. These connector rules are defined in connector styles. connector An AutoCAD MEP element that is placed on an object and that holds information. A connector joins other objects (i.e., pipe segments) to each other. connector block A block with terminals used to connect wires or cables. connector engagement length (CEL) The length of pipe that is inserted into a coupling either as a threaded section or socket welded segment for joining the pipe. CEL constitutes part of the overall length of a pipe segment and is the minimum length required for a proper connection. constrained layout Drawing pipe between 2 existing pipe objects (pipes or fittings) constraint In Content Builder, an entity that controls the shape of a feature by establishing relationships between features in the model construction documents The working drawings, schedules, and specifications required to construct a building. Also referred to as CDs. containment Cable transport mechanisms, such as trays, trunking, ladders, and baskets. content User-definable, pre-configured elements provided to aid you in getting started on a project. Examples of supplied content are templates, styles, and symbols. See also design content. Content Builder A utility tool that enables you to create custom parts, such as fittings and equipment, that can be used in your building systems layouts. context menu The menu displayed at the cursor location when you right-click your pointing device. The context menu and the options it provides depend on the cursor location and other conditions, such as whether an object is selected or a command is in progress. continuous load An electrical load where the maximum current is expected to continue for 3 hours or more. coupling A joint type used to join 2 pipes together. Couplings are typically used for threaded, socket weld, grooved, or glued type piping. The depth of the connection is defined by the CEL value. See also connection engagement length (CEL). current The flow of electricity in a circuit. curve The centerline of the geometry along which objects are built. curve anchor A feature that fastens, or anchors, an object to the base curve of another object. The movement of the anchored object is constrained by the object to which it is anchored. cut height Elevation for cut plane in the floor plan; breaking level for the Low and High display components cut plane The height at which an object is cut to produce the plan representation; settings for defining elevations for a floor plan (Display Above Range, Cut Height and Display Below Range) cutout (1) A cut in a panel or beam used to insert a fixture. cutout (2) A switch used to cut off the flow of electricity to a circuit. damper An adjustable plate used to control air flow. DDXML For Duct Design Extensible Markup Language. An XML format designed to store and transfer design specifications for ductwork. default A predefined value for program input or parameters. Default values and options for commands are denoted by angle brackets (). 806 | Glossary