| An electrical rough-in box placed in a length of conduit, through which cables can be pulled.
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| A removable ornamental or protective plate that is mounted to an electrical rough-in box.
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| The electrical box where the public service electrical supply line is connected with a branch to serve a particular building or structure.
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| A metal electrical box, usually with a removable cover, that contains leads from electrical equipment ready for connection to a power source.
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| An electrical box, designed for exterior installation, that is impervious to the outside elements, such as water.
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| Mixing by pouring back and forth from one container to another.
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| A physical law governing the behavior of gases, stating that the volume of a gas is directly proportional to its temperature and inversely proportional to its pressure.
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| 1.A cranked hand tool to hold a bit for drilling holes. 2. A diagonal member, either in tension or compression, to strengthen a structure.
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| A truss system or its equivalent which resists lateral forces.
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| One which is dependent upon diagonal braces for stability and capability to resist lateral forces.
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| A series of braced wall panels in a single story.
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| Pieces fitted and firmly fastened to two others at any angle in order to strengthen the structure.
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| 1. Diagonal members, either temporary or permanent, installed to stabilize a structure against lateral loads. 2. Structural member used to prevent buckling or rotation of wood studs.
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| Hanger supporting a wall-hung sink.
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| 1. A wall-mounted support for shelving or other object. 2. A wall-mounted lighting fixture.
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| 1. A projecting support for a shelf or other structure. 2. In furring and lathing, a superficial structure usually in angles forming a frame to support lath; used to save material and weight in ornaments or cornices.
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| A small slender wire nail with a thickened top for a head.
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| Sheet metal that has been bent into a specified configuration, such as gravel stop, flashing, L-shapes, and Z-shapes; formed on a sheet metal brake.
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| A machine for flanging, bending, or folding sheet metal.
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| A switch which stops the flow of current by opening the circuit automatically when more electricity flows through the circuit than the circuit is capable of carrying; resetting may be either automatic or manual.
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| Circuits supplying energy either to permanently wired appliances or to attachment plug receptacle, that is appliance or convenience outlets, or to a combination of permanently wired appliances and additional attachment plug outlets on the same circuit; such circuits to have no permanently connected lighting fixtures not a part of an appliance.
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| A branch circuit that supplies a number of outlets for both lighting and appliances.
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| Circuits supplying energy to lighting outlets only.
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| Circuits from the motor branch circuit protective device to the motor, including the controller and overload protective device.
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| A multiwire branch circuit is a circuit consisting of two or more ungrounded conductors having a potential difference between them, and an identified grounded conductor having equal potential difference between it and each ungrounded conductor of the circuit and which is connected to the neutral conductor of the system.
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| A circuit supplying several localized electrical outlets from a single breaker.
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| That portion of a wiring system extending beyond the final automatic overcurrent protective device, excluding any thermal cutout or motor running overload protective device that is not approved for short circuit protection.
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| This is the vertical distance, generally a floor or story in height, but never less than 8 feet, within which the horizontal branches from one floor of the building are connected to the main DWV stack.
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| A vent pipe that connects a branch of the drainage system to the main stack.
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| A member or part of a system or structure which diverges from the main portion, as in heating, ventilation, or electrical installations; a smaller or subordinate duct, pipe, or circuit extending from the main line.
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